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Cleaner Air Starts with Lower Humidity

On August 5, 2026, in news, by Michael
0

When most homeowners think about indoor comfort, their mind goes straight to the thermostat. But temperature is only half the battle. If your home’s air is holding onto excess moisture, even a blasting air conditioner won’t stop it from feeling muggy, heavy, and uncomfortable.

Keeping indoor relative humidity below 50% does far more than just eliminate that sticky summer feeling, it stops destructive mold and mildew before they can take root, wipes out breeding grounds for dust mites and pests, and protects your home’s wood floors and drywall from costly moisture damage.

IW-25-6

The brand new 6th-generation wall-mounted dehumidifier platform. Designed for apartments condominiums, multifamily housing, student housing, and residential rooms, these units operate independently of central HVAC systems to manage localized humidity and improve air quality. These units cover up to 1500 sq. ft., removes 40 ppd, and operates with 100 CFM and 43 dBA.

IW-25-6-IW In-Wall Dehumidifier

The In-wall package allowing for recessed (2×4 walls) or flush-mount (2×6 walls) installation. The IW-25-6-IW is designed to sit inside standard framing wall cavities.

IW-25-6-IW Product Page | IW-25-6-OW Spec Sheet

IW-25-6-OW On-Wall Dehumidifier

The On-wall package allows for surface mounting installation. The IW-25-6-OW is designed to mount directly on top of solid surfaces like drywall, CMU block, or masonry walls without requiring wall cutouts, perfect for retrofit operations.

IW-25-6-OW Product Page | IW-25-6-OW Spec Sheet

WH Whole House Dehumidifiers

The WH60 and WH85 are compact, durable, and energy-efficient units engineered for residential homes, crawl spaces, and other conditioned environments. These units have a condensate removal capacity of 60 and 85 pints per day, and a coverage space of 11,000 cu. ft. and 15,000 cu. ft. respectively. The WH series feature a built-in digital humidity controller, R32 refrigerant, a MERV-10 filter, and a continuous gravity drain system for maintenance-free moisture removal.

WH Product Page

Specs: WH60 | WH85

WHOA Whole House Dehumidifiers

Ranging from 100 ppd, 23,000 cu. ft., 57 dBA and 310 CFM (WH100OA) to 200 ppd, 45,000 cu. ft., 59 dBA and 420 CFM (WH200OA), the WHOA series are heavy-duty, high capacity moisture control systems. Designed specifically for larger homes, crawl spaces, and commercial conditioned spaces with outdoor air intake requirements, this series features an integrated 6″ motorized damper to bring fresh outdoor air into the structure while managing humidity, air quality, and mold risks.

WHOA Product Page

Specs: WH100OA | WH120OA | WH150OA | WH200OA

Optional Accessories for Greater Flexibility

The IW25-6 offers a range of optional accessories that enhance its adaptability, ease of installation, and functionality. Two of the most impactful are the condensate pump and the exterior sleeve.

Condensate Pump

In situations where gravity drainage isn’t possible, such as in basements or below-grade installations, the condensate pump allows the unit to push collected moisture up to a higher drainage point. This accessory is essential in locations where the drainage point may be distant or positioned at a higher elevation than the unit itself. The pump seamlessly integrates with the IW25-6, ensuring reliable moisture removal and uninterrupted operation regardless of location constraints.

Exterior Sleeve

The exterior sleeve is an accessory specifically designed to support the IW25-6’s installation in 2×4 wall cavities. In these standard walls, where a flush installation isn’t possible, the sleeve provides stability and a finished look. While the unit will still extend slightly beyond the wall surface, the sleeve ensures a secure fit and professional appearance, making it a practical option for accommodating different wall depths.

Humidity Happens, Mold Doesn’t Have To

At the end of the day, controlling your home’s moisture levels isn’t just about immediate comfort, it’s a long-term investment in your health, your home’s structure, and your energy bills. Whether you need a discreet, in-wall unit for a damp room or a high-capacity whole-home dehumidifier integrated into your HVAC system, taking control of your indoor air quality has never been easier.

Your Dependable Partner for High-Performance products

Our engineering team is just a quick phone call away to provide expert guidance and ensure you have the right specialized gear for every job. Plus competitive contractor pricing, deep stocking and quick shipping from our East and West warehouses.

Join our TradePro program for below-MAP tier pricing, direct-dial engineering support and priority shipping.

 

Understanding Wildfire Home Defense

On July 28, 2026, in news, by Michael
0

Wildfires are a growing threat, and one of the most common ways homes ignite is not from the main fire front, but from wind-blown embers. These tiny, fiery particles can travel for miles, finding their way into vulnerable areas of a home, especially through open vents in attics and foundations. BrandGuard Vents was founded by a firefighter who saw this problem firsthand and developed a solution to protect homes in wildfire-prone areas.

The BrandGuard Triple Protection System

BrandGuard Vents are not your standard ventilation product. They are engineered with a patented “triple protection” system designed to be a home’s first line of defense against embers and flames.

  1. Resistant by design – The Overlapping Baffle Design and 1/16 inch mesh: Air moves through the vent without resistance. Embers do not. The baffle geometry forces airborne particles to turn corners they cannot survive, then catches the rest at the mesh. Tested against the worst storms the West can produce.
  2. Self closing technology – Intumescent Strips: BrandGuard’s proprietary intumescent material is designed to expand in response to extreme heat and flames. When the temperature rises to dangerous levels, these strips expand to seal the vent openings, effectively blocking embers and preventing flames from entering your home. This flame and heat feature provides an added layer of protection, ensuring your vents respond proactively to wildfire conditions.
  3. Non combustible build – 26 gauge grade 90 steel: Non-combustible – the vents will not ignite, warp or buckle even when exposed to direct fire. Available in galvanized and stainless steel and copper. Paint matched so the vents blend into your home aesthetic.

BrandGuard’s Intumescent Material

Being part of the Tenmat Passive Fire Protection Group, BrandGuard manufactures their own intumescent material in-house, making their fire and ember defense system unique to their products. Their custom intumescent formula features:

  • Intercalated Graphite: the active element that expands when exposed to heat, providing effective sealing against ember entry.
  • Rock Mineral Fibers: These fibers act as a scaffolding or matrix to support the intumescent material, ensuring durability and performance under extreme conditions.
  • High-Temperature Organic Binders: The strips are bound with high-temp, organic materials to provide reliable protection that won’t degrade under fire conditions.

Their formula is award winning and industry leading, making BrandGuard unmatched in fire protection.

A Full Line of Fire-Resistant Vents

BrandGuard offers a comprehensive range of products to “harden” your entire home against wildfires, ensuring all potential entry points are protected. Each product is compliant with rigorous building codes for Wildland-Urban Interface (WUI) areas.

BrandGuard Fire Resistant Round Eave Vents

These small, round vents are a highly specific solution for protecting the existing ventilation holes in your home’s undereave blocks, often called “bird holes”. They use BrandGuard’s patented baffle design to block embers and fire, while their “plug” form allows for easy retrofitting without any re-drilling. This provides a simple and effective way to secure a common point of wildfire entry.

Fireplug Product Page | Fireplug Specs

BrandGuard Fire Resistant Gable Vents

These vents provide essential attic ventilation, ensuring your home is protected and compliant with fire-safety codes while also serving as a prominent architectural feature.

Gable Vent Product Page | Gable Vent Specs

BrandGuard Fire Stopping Foundation Vents

These vents are specifically engineered to prevent embers, flames, and pests from entering your crawl space, ensuring the safety and integrity of your home’s foundation.

Foundation Vent Product Page | Foundation Vent Specs

BrandGuard Fire Resistant Dormer Vents

Serving as both a decorative and functional architectural element, these vents provide essential ventilation for attics through a dormer.

Dormer Vent Product Page | Dormer Vent Specs

BrandGuard Fire Resistant Sub Flashing Roof Vents

A perfect solution for retrofitting existing homes, these vents install under your current roof flashing from the inside the attic. This unique design allows you to easily convert a standard roof vent into a fire-resistant one, providing a critical safety upgrade that meets modern building codes without the need for major reconstruction.

Sub-Flashing Roof Vent Product Page | Sub-Flashing Roof Vent Specs

BrandGuard Removable 1-Hour Fire-Rated Balcony Inspection Vents

These unique vents provide a solution for both fire safety and inspection compliance. Designed to meet the requirements of California’s SB-721 and SB-326, they feature a hinged design for non-destructive access to inspect balcony framing. They are also 1-hour fire-rated and WUI compliant, offering a two-in-one solution that protects against flames and embers while avoiding costly inspection-related repairs.

Balcony Inspection Vent Product Page | Balcony Inspection Vent Specs

BrandGuard Fire Stopping Soffit and Undereave Vents

Providing essential cool air intake for attic ventilation, these vents are a foundational component of a fire-resilient home.

Soffit Vent Product Page | Soffit Vent Specs

Why BrandGuard is a Smart Choice

Choosing BrandGuard Vents is an investment in the safety and longevity of your home. They have been rigorously tested and listed to meet strict fire safety standards, providing a robust solution that is both effective and durable. For homeowners in areas threatened by wildfires, upgrading to BrandGuard Vents is a critical step in building a fire-resilient home and gaining peace of mind.

Your Dependable Partner for High-Performance products

Our engineering team is just a quick phone call away to provide expert guidance and ensure you have the right specialized gear for every job. Plus competitive contractor pricing, deep stocking and quick shipping from our East and West warehouses.

Join our TradePro program for below-MAP tier pricing, direct-dial engineering support and priority shipping.

 

Breathe Easy Inside: Emergency Air Cleaning for Wildfire Smoke

On July 23, 2026, in news, by Michael
0

Why wildfires are a danger to my health

Size of PM2.5 relative to human hair

Wildfires produce huge plumes of smoke and gases that are annoying and harmful to our health. The small particles, in the range of 2.5 microns produced by wildfires, are of the greatest concern. To compare this size, a human hair is about 50 -70 microns in diameter. We measure their concentration with a number designated as the PM2.5 measurement (more is worse).

AQI levels and health risks

The main concern with PM2.5 particles is that they can work themselves deeply into the lungs (and even the bloodstream) causing lung and heart problems.

Sources:

https://www.epa.gov/system/files/documents/2026-06/wildfire-guide-for-public-health-officials-2026.pdf

https://ww2.arb.ca.gov/resources/overview-diesel-exhaust-and-health

How to protect yourself

Filtration, Filtration, Filtration.

The ‘obvious’ filtration is to use a HEPA filter, but here are some thoughts:

1. Will a lower grade (MERV13 and up) work for you?

2. Is the filtration device pulling in enough air volume? This is measured in CFM or cubic feet per minute.

3. Does the filtration device filter air throughout your house?

Small devices with low airflow and the inability to flow air throughout the house may be less effective than high volume air filters with lower (and cheaper to replace) filters.

We’ve been aware for some time that particulate pollution is a health concern and that is why HVACQuick.com designs, builds, and sells a variety of products and systems to effectively and economically filter your air.

Call us at +1(888) 855-7229 for expert advice

MERV filter efficiency graph

Smoke Mitigation Systems

Residential Smoke Mitigation Systems

Designed for residential applications up to 2500 sq. ft. The large residential smoke mitigation kit moves up to 1025 CFM via the Ruck 10″ Prime EVO EC. The kit comes with a SFB-A-10 including a MERV 13 filter and a MERV 8 pre-filter in the RG-1422 filter grille, accessible from the living space for easy maintenance.

Large Residential Mitigation Kit Product Page | SFB-A Submittal | Prime EVO EC Data Sheet

Commercial Smoke Mitigation Systems

Designed for commercial locations up to 2500 sq.ft. The deluxe commercial smoke mitigation kit moves up to 1025 CFM via the Ruck 10″ Prime EVO EC. The kit comes with an IFHB-10 HEPA Filter box, including a MERV 11 pre-filter and an H13 HEPA Filter. Additionally, this kit comes with a MERV 8 pre-filter in the HT-2×2 ERTN T-Bar filter grille, accessible from the workspace for easy maintenance.

Deluxe Smoke Mitigation Kit Product Page | IFHB Spec Sheet | Prime EVO EC Data Sheet

CRFB Corsi-Rosenthal Style Filter Cube

The CRFB is a take on the popular DIY air cleaner which allows for easy filter replacement. The frame consists of a sturdy aluminum, and elastic straps to give a clean, long-lasting setup for high-volume air filtration. The CRFB was found to be capable of 454 CFM with all 5 filters, and with a power usage of 54.38 W, was found to only cost $1.50 per week to operate. When compared with other filter boxes, the CRFB ranks as the most cost efficient filtration system that we offer.

CRFB Product Page | CRFB Spec Sheet

HEPA Filtration Products

AirScape AH-4 HEPA Filtration Air Scrubber

Featuring a 1 HP ECM motor with 10-speed direct-drive fan, this unit utilizes a 2-stage filtration system. The MERV-11 pre-filter traps all of the larger dust particles, protecting and extending the lifespan of the high-efficiency H13 HEPA Filter while reaching up to 1200 CFM. Truly a beast when it comes to smoke mitigation.

AH-4 HEPA Product Page | AH-4 HEPA Spec Sheet

Fantech HERO HS300

The HS300 is a bypass filtration system that connects alongside your forced-air system. Designed to clean and filter the air in an average 2000 sq. ft. home every hour, the HS300 comes with a MERV 8 pre-filter, an activated carbon pre-filter, and a certified HEPA filter.

HS300 Product Page | HS300 Brochure

Can you just retrofit my furnace filter

Nope.

Higher particle arrestance (better) filters have a higher pressure drop than so called standard filters. To overcome this we build filter boxes with “V”, “W”, or “Angled” filters that have higher areas and keep the pressure drop down. This allows your equipment to maintain airflow avoiding a possible source of low performance or even premature failure.

MERV1 furnace filter vs MERV 13 high efficiency filter

Your dependable partner for high-performance products

Our engineering team is just a quick phone call away to provide expert guidance and ensure you have the right specialized gear for every job. Plus competitive contractor pricing, deep stocking and quick shipping from our East and West warehouses.

Join our TradePro program for below-MAP tier pricing, direct-dial engineering support and priority shipping.

 

The Brains Behind the Breeze

On July 14, 2026, in news, by Michael
0

When it comes to heating and cooling, a furnace or air handler is only as good as the controls telling it what to do. If your system can’t efficiently route air where it’s needed, you’re wasting energy and losing comfort. iO HVAC Controls specializes in the traffic control of the HVAC world.

Whether you’re an installer looking to solve a ‘missing wire’ crisis with a wireless relay, a building manager trying to eliminate a bulky bypass duct using advanced ESP zoning, or a homeowner trying to bring fresh, clean air into a tightly sealed house, iO makes the hardware that solves the problem.

Wireless Relays

The iO-WR and iO-WRP are the perfect solution when you can’t run wire or existing wires have been cut or damaged. Both relays are rated for 1 Amp per channel, operate at a frequency of 915 MHz, 24VAC, 2.8VA with a base transceiver (3 receive / 1 send channels) and a satellite transceiver ( 1 receive / 3 send channels). The difference in receivers lie in their ranges.

iO-WR

The iO-WR can reach ranges of up to 100 feet, it is suitable for application in a typical residential installation such as replacing a broken wire running form a basement air handler up out to the backyard patio. 100 feet is plenty to pierce through standard residential wood framing and exterior siding.

iO-WR Product Page

iO-WRP

The iO-WRP can reach ranges of up to 1/4 mile. This makes it the perfect solution for heavy commercial building materials such as cinder block, concrete, or corrugated metal roofs, or if the outdoor unit is on top of a commercial building several floors up. The “Plus” version uses a much stronger signal to punch through those dense architectural barriers.

iO-WRP Product Page

Zoning panels

ZP3-ESP
ZP3-ESP Kit

ZP3-ESP Zoning Panel

The ZP3-ESP is a 3 zone universal zone control panel that includes integrated EPS static pressure control logic designed to eliminate the need for a conventional bypass damper when used with 3-wire zone dampers. The panel is capable of handling up to 2 stages of conventional heating and cooling or 3 stages of heating and 2 stages of cooling for heat pump and dual fuel applications.

How ESP works

As zone dampers open and close, the ZPA-SPS Static Pressure Sensor continuously monitors the system static pressure. If the static pressure goes above the static pressure setpoint, the sensor will send a signal to the panel which will begin to open selected non-calling zone dampers slightly until the static pressure setpoint is maintained. The small amount of air allowed to bleed into non-calling zones eliminates air noise and assures proper airflow through the HVAC system. The static pressure setpoint is factory set at 0.4″ W.C. but it is fully adjustable from 0.08 to 1.2″ W.C.

ZP-ESP Product Page

Ventilation Kits

UT32-VK-XX

These kits include the UT32 Titan Thermostat, a 20 VA transformer, and a 24V powered open / spring closed damper ranging from 4-10″ ducting. This highly universal control which allows for a fresh air damper to be wired to the thermostat eliminates the need for an additional control panel.

UT32-VK-XX Product Page

MUA-XX

These kits include a 20 VA transformer, adjustable static pressure sensor ranging from .08 to 1.2″ wc. and a 6-16″ damper. The adjustable static pressure sensor allows the contractor to calibrate when the make-up air damper opens, eliminating excessive unconditioned air in the home. The make-up air damper safely equalizes pressure with the home keeping unwanted and harmful gases from entering the living space due to negative pressure caused by exhaust fans.

MUA-XX Product Page

When it comes to taking control of your HVAC system, iO HVAC Controls delivers the smart, trade-trusted hardware needed to eliminate everyday installation and comfort headaches. From maximizing indoor air quality with fresh air ventilation kits to simplifying zoning without bulky bypass ducts, their lineup turns complex airflow traffic control into a straightforward solution.

With an extensive lineup of iO HVAC Controls and other high-performance products, HVACquick has everything you need to make your next project.

Your dependable partner for high-performance products

Our engineering team is just a quick phone call away to provide expert guidance and ensure you have the right specialized gear for every job. Plus competitive contractor pricing, deep stocking and quick shipping from our East and West warehouses.

Join our TradePro program for below-MAP tier pricing, direct-dial engineering support and priority shipping.

 

60 Years of Chill: What Makes Koldwave the Gold Standard in Portable ACs

On July 9, 2026, in news, by Michael
0

Rugged. Reliable. Responsible. These are the qualities you demand for your temporary spot cooling challenges. Meeting these expectations is vital to our reputation. This is why when it comes to portable air-conditioning units, there’s one brand that stands out above the rest.

With more than 60 years of being a leading portable air-conditioning manufacturer, Koldwave has dealt with every issue imaginable when it comes to portable air-conditioning. Their current engineering is the result of thousands of incremental design improvements to make each unit rugged, reliable, and responsible.

Air Cooled Air Conditioners

Air-Cooled portable air conditioners are intended to be rolled into a room near the source of the heat. For spot cooling applications, you point the nozzles at the spot that you want to keep cool. For room cooling applications, the nozzle direction is not as important. Since the air conditioner is inside or near the space requiring cooling, you must duct out the warm air that the air conditioner produces. In an office environment this is typically done by ducting the condenser air from the top of the unit up to a special ceiling tile that directs the air to the main building cooling system’s return air plenum above the ceiling tiles. As the cool air from the unit offsets the heat being produced in the room, the temperature in the room will begin to drop. The capacity of the unit, the amount of heat being added to the room, and the size of the room will determine how much the temperature will drop.

8CC10BE

The Koldwave 8CC10BE is an innovative, highly adaptable air-cooled portable air conditioner. It acts as the direct upgrade to the brand’s popular, compact legacy “CoolCube” series. What makes the 8CC10BE completely distinct in Koldwave’s lineup is its modular design. Rather than being stuck as a standard rolling floor unit, it is engineered to be transformed using several specialized application kits to solve tight space constraints, particularly in data environments. The 8CC10BE has a cooling capacity of 10,000 BTU/hr.

8CC10BE Product Page | 8CC10BE Specs

9HP13BE | 8HP16BE

The Koldwave 9HP13 and 8HP16 series are air-cooled, commercial-grade portable heat pumps. Unlike standard spot coolers that only provide air conditioning, these units are true year-round climate solutions capable of switching between high-capacity cooling and reverse-cycle heating. They are heavily utilized for supplemental or emergency climate control in server rooms, open-air industrial workstations, and healthcare facilities. The 9HP13 has a cooling capacity of 13,200 BTU/hr and a heating capacity of 14,300 BTU/hr while the 8HP16 has a cooling capacity of 16,800 BTU/hr and a heating capacity of 18,500 BTU/hr.

9HP13BE/8HP16BE Product Page | 9HP13BE Specs | 8HP16BE Specs

9KK14/17BE

The Koldwave 9KK14 and 9KK17 are commercial-grade, air-cooled portable spot coolers. They are engineered to provide localized, temporary cooling in spaces like offices, laboratories, server rooms, and industrial workstations.

9KK14/17BE Product Page | 9KK14/17BE Specs

9KK21BF

The Koldwave 9KK21 represents a significant step up in the brand’s air-cooled portable spot cooler lineup. While sharing the exact same rugged, dual-nozzle chassis design as its smaller siblings, the 9KK21 delivers a much higher cooling capacity of 21,000 BTU/hr.

Because of this increased performance, the most critical difference to note is its power requirement: the 9KK21 moves away from standard 115V wall power and requires a 220V electrical circuit.

9KK21 Product Page | 9KK21 Specs

9KK30BF | 9KK37BF

The 9KK30BF and 9KK37BF are heavy-duty, high-capacity air-cooled portable spot coolers. Stepping up to cooling capacity rates of 28,000 BTU/hr and 36,110 BTU/hr respectively, these systems represent the upper tier of Koldwave’s mobile lineup. These models feature a triple nozzle layout to handle large-scale commercial emergencies, industrial plants, and massive data rooms. Like the 9KK21, these require 220V single phase power.

9KK30BF/9KK37BF Product Page | 9KK30BF/9KK37BF Specs | 9KK37 Submittal

9KK60BF | 8KK92BH

The 9KK60BF and 8KK92BH epresent the heavy-duty industrial giants of Koldwave’s air-cooled portable lineup. Cranking out insane cooling capacity rates of 60,000 BTU/hr and 91,260 BTU/hr, these massive units are engineered for extreme, large-scale deployments—such as entire factory floors, disaster relief zones, major data center failures, and massive commercial complexes.

The 9KK60BF still operates on 220V single phase power while the 8KK92BH operates on 460V 3 phase power.

9KK60/8KK92 Product Page | 9KK60 Specs | 8KK92 Specs

Water Cooled Air Conditioners

Water-cooled portable air conditioners are intended to be rolled into a room near the source of the heat. They are intended for room cooling only. Water-cooled units cannot be ducted and do not use nozzles like their air-cooled counterparts. Since the air conditioner is inside the space requiring cooling, you must remove the heat that is produced by the air conditioner. Water cooled units use water instead of air to remove this heat. The unit requires a water supply, water return, and a place to drain condensate. As the cold air from the cooling side of the unit offsets the heat being produced in the room, the temperature in the room begins to drop. The actual temperature drop is determined by the capacity of the unit, the amount of heat being added to the room, and the size of the room.

8WC Series

The Koldwave 8WC Series represents the brand’s modern line of water-cooled portable air conditioners. They are explicitly designed for spaces where traditional air-cooled units won’t work because there is no way to vent hot condenser air (such as interior glass boardrooms, tight server closets, or historical buildings). Cooling capacity ranges from 12,060 BTU/hr with the 8WC12BE to 20,400 BTU/hr with the 8WC24BF.

8WC Product Page | 8WC Specs

What is the difference?

Both types of units are totally self contained air conditioners with refrigerant and compressors. Air conditioners need a way to reject the heat from the room. Air-cooled portables use air to reject the heat out of the room by ducting the unit above the ceiling tiles. A water cooled unit uses water to reject the heat. So, there has to be a water supply and a hot water return. This can be accomplished with a chilled water loop, condenser water loop, or process water lobby.

Sourcing your next Koldwave Portable System

Koldwave stands out in the crowded climate control market as a brand built entirely on operational reliability and specialized engineering. By anchoring their 60+ year manufacturing legacy, they have excelled in engineering high-quality portable air-conditioning to deliver predictable, turnkey performance that commercial operations demand. From standard air-cooled units to specialized water-cooled units, HVACQuick is your source for a comprehensive range of Koldwave’s portfolio.

Your dependable partner for high-performance products

Our engineering team is just a quick phone call away to provide expert guidance and ensure you have the right specialized gear for every job. Plus competitive contractor pricing, deep stocking and quick shipping from our East and West warehouses.

Join our TradePro program for below-MAP tier pricing, direct-dial engineering support and priority shipping.

 

Minimizing Static Pressure at the Building Envelope: The Seiho Engineering Advantage

On June 29, 2026, in news, by Michael
0

Exterior terminations represent a frequent failure point in high-performance ventilation systems. Standard stamped metal or molded plastic hoods regularly introduce excessive resistance, altering fan performance curves, increasing noise levels, and escalating mechanical wear. For commercial projects and high-efficiency residential systems, mitigating pressure drop at the building envelope requires precision geometry and durable materials.

Seiho’s product lines are engineered to maintain low system static pressure while ensuring robust weather defense and long-term durability.

Aerodynamic Architecture and Static Pressure Metrics

Standard commercial architectural specifications demand precise performance metrics to safeguard fan motors and maintain targeted volumetric airflow (CFM). Seiho wall terminations resolve this by maximizing free area and optimizing air velocity pathways.

Versatile Applications

Seiho engineered terminations are tailored for distinct mechanical applications, offering specialized configurations for general exhaust/intake (standard vent caps) and lint-safe configurations for dedicated dryer exhaust. Models are available in multiple dimensions to match system requirements (values in parentheses indicate Net Free Area)

Vent Caps

Seiho vent caps are perfect for any venting applications such as storage rooms, attics, basements, and bathroom / kitchen exhausts.

SFX-S / SX-S Series: The polished stainless steel versions of the immensely popular SFX and SX Series. Available in 4″ (0.04 sq. ft.) or 6″ (0.08 sq. ft.) duct sizes.

SFX-S Product Page | SX-S Product Page | SFX-S Dimensions | SX-S Dimensions

KX / KXU Series: The clean anodized aluminum square design is a perfect match for contemporary and classic buildings alike. Available in 3″ (0.12 sq. ft.), 4″ (0.14 sq. ft.), 5″ (0.21 sq. ft.), and 6″ (0.21 sq. ft.) duct sizes.

KX Product Page | KXU Product Page | KX Dimensions | KXU Dimensions

SFX / SX Series: The beautiful anodized aluminum design fits many decorating schemes. The hooded vent cap is excellent for exteriors where protection from the elements is necessary and not already carried out by the building design. Available in SX 3″ (0.02 sq. ft.) to 8″ (0.14 sq. ft.) duct sizes, SFX available in 3″ (0.02 sq. ft.) to 12″ (0.31 sq. ft.) duct sizes.

SFX Product Page | SX Product Page | SFX Dimensions | SX Dimensions

CFX / CFX-P Series: The CFX features a louver plate that can be easily opened for regular cleaning. The CFX-P series features a heavy-duty 8 1/2″ long aluminum pipe ideal for through-the-wall mounting. The CFX is available in 3″ (0.03 sq. ft.) to 12″ (0.26 sq. ft.) duct sizes while the CFX-P is available in 4″ (0.03 sq. ft.) or 6″ (0.08 sq. ft.) duct sizes.

CFX Product Page | CFX-P Product Page | CFX Dimensions | CFX-P Dimensions

RCA-S Series: This polished stainless steel series provides one of the largest free area for the based on duct size with weather and corrosion resistance. Available in 4″ (0.08 sq. ft.) and 6″ (0.18 sq. ft.) duct sizes.

RCA-S Product Page | RCA-S Dimensions

Dryer Vents

Seiho dryer vents feature larger openings to reduce clogging, or backdraft / backdraft flapper dampers that prevent outside air from back-drafting into the house through the dryer. While designed for dryer exhaust, they also work great for bathroom or kitchen exhaust venting.

SB / SFB Series: Easy to install and designed for exterior applications, the SB and SFB series comes standard with a flapper damper. Available in 4″ (SB: 0.059 sq. ft. SFB: 0.054 sq. ft.) and 6″ (SB: 0.14 sq. ft. SFB: 0.13 sq. ft.) duct sizes.

SB Product Page | SFB Product Page | SB Dimensions | SFB Dimensions

SB-P / SFB-P Series: These feature a rigid, heavy-duty 8 1/2″ long aluminum pipe ideal for through-the-wall mounting. Available in 4″ (0.59 sq. ft.) and 6″ (0.14 sq. ft.) duct sizes.

SB-P Product Page | SFB-P Product Page | SB-P Dimensions | SFB-P Dimensions

SFZ / SFZC Series: The SFZ and SFZC series is a louvered dryer vent that features larger openings that allow lint to flow easily past it. The SFZC series features a backdraft damper. Available in 4″ (0.04 sq. ft.) and 6″ (0.11 sq. ft.) duct sizes.

SFZ Product Page | SFZC Product Page | SFZ Dimensions | SFZC Dimensions

CFXC / CFXF-P Series: The CFXC features a backdraft damper while the CFXF-P features a backdraft flapper damper and a rigid, heavy-duty 8 1/2″ long aluminum pipe ideal for through-the-wall mounting. The louver plate can be easily opened for regular cleaning. Available in 4″ (0.03 sq. ft.) or 6″ (0.08 sq. ft.) duct sizes.

CFXC Product Page | CFXF-P Product Page | CFXC Dimensions | CFXF-P Dimensions

RCC-S Series: This polished stainless steel series provides the largest free area of dryer vents while featuring a backdraft damper. Available in 4″ (0.07 sq. ft.) and 6″ (0.16 sq. ft.) duct sizes.

RCC-S Product Page | RCC-S Dimensions

Vent Selection with Free Area Velocity and Pressure Drop Calculations

The Seiho SFX series is engineered to operate efficiently up to a maximum recommended free area velocity of 750 FPM. At this threshold, the static pressure drop is limited to just 0.09 in. w.g., preventing the system choking common with standard hardware. To determine the minimum required size for your exhaust or intake line, apply the standard manufacturer-approved formula:

For instance, an inline fan delivering 125 CFM requires a termination with at least 0.16 sq. ft. of free area. A review of the Seiho dimensional tables shows that an 8-inch SFX unit (providing 0.14 sq. ft. of free area) would be near the margin, but not over the 0.16 sq. ft. minimum requirement whereas a 10-inch SFX unit provides 0.24 sq. ft. of free area. Reverse engineering the equation using using the free area of an SFX-10 brings the free area velocity to 521 FPM. Cross referencing with the pressure drop graph, that would mean the system has a static pressure of approximately 0.045 in. w.g.

Material Durability and Mechanical Features

The longevity of a building’s envelope depends heavily on the materials anchoring its terminations. Inferior exterior caps suffer from UV degradation, environmental stress cracking, and atmospheric oxidation.

Seiho assemblies are manufactured using heavy-gauge anodized aluminum or premium polished 304 stainless steel (such as the SFX-S series). These alloys are designed to be corrosion-resistant for durability. For products with aluminum housings, custom powder-coating is available.

Functional Engineering Elements

  • Integrated Moisture Mitigation: Each louvered assembly includes a built-in water condensation drain channel. This feature forces moisture outward, keeping it out of the ductwork.
  • Pest Control: The SFX-N and SFX-SN sub-models can be configured with integrated stainless steel insect screens, blocking pest entry without creating an excessive restriction in the airflow path.
  • Low-Mass Flapper Dampers: The SFZC and SFB lines implement low-resistance backdraft flapper dampers. These dampers open fully under active static pressure from bathroom fans or dryers, yet close tightly when the system is idle to halt wind penetration or cold air infiltration.

Friction-Fit Mechanical Mounting

Seiho terminations utilize a fastener-free installation system. The rear neck of the assembly features heavy-duty, factory-mounted friction-fit spring clips. The installation sequence requires only four steps:

  1. Verify the round rigid ducting or wall sleeve is cut flush with the exterior substrate.
  2. Apply a sufficient amount of high-grade silicone caulk around the neck of the vent.
  3. Align the termination and press firmly to compress the caulk for a good seal at the duct.
  4. Apply caulk around the outside edge of the vent to create a weather-tight seal against the building facade. Wipe off any excess. The vent openings must be positioned at the bottom.

Because the unit is retained via spring clip friction and caulking, the vent caps can be easily pulled completely out of the duct for line inspection and lint clearing.

Engineering Meets Logistics

Ultimately, optimizing a mechanical system requires matching premium components with a reliable supply chain. Seiho provides the precision geometry needed to protect fan performance. By maximizing Net Free Area and utilizing architectural-grade materials, these terminations eliminate the excessive resistance common in standard hardware. To ensure these solutions reach the job site without delay, HVACquick maintains deep stock across the entire Seiho lineup alongside matching fans, louvers, and dampers to complete any commercial or residential venting array.

Your dependable partner for high-performance products

Our engineering team is just a quick phone call away to provide expert guidance and ensure you have the right specialized gear for every job. Plus competitive contractor pricing, deep stocking and quick shipping from our East and West warehouses.

Join our TradePro program for below-MAP tier pricing, direct-dial engineering support and priority shipping.

 

Specifying Heavy-Duty Ventilation: A Guide to Canarm Commercial & Industrial Fans

On June 17, 2026, in news, by Michael
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At HVACQuick, we understand that effective air movement in commercial and industrial builds isn’t just about comfort, it’s about compliance, safety, and efficiency. When your project requires specialized tech for demanding specs, you need equipment that won’t quit.

That’s why we are a proud supplier of Canarm. From heavy-duty industrial wall exhausters to explosion-proof fans, Canarm engineers robust solutions for the toughest ventilation challenges.

Precision Air Movement

Camarm’s engineering prowess shines through in specialized solutions for specific needs:

Blowers and Utility Sets

When you need to move air against resistance or within a ducted system, Canarm’s blowers and utility sets (400, 600, BI, KE, PW) deliver. These robust units are essential for process ventilation, material handling, and ensuring consistent airflow in complex systems.

Duct Blowers & Tube Axial Duct Fans

For seamless integration into your existing ductwork, Canarm offers powerful duct blowers (200, 9200, IDB) and highly efficient tube axial fans (BTA, DDA, HTA, WTA). These are ideal for applications requiring focused air movement within a confined space, from industrial exhaust to air recirculation.

Makeup and Supply Air Fans

Maintaining balanced air pressure and introducing fresh, conditioned air is vital. Canarm’s makeup and supply air fans (700DD, SISDD) are engineered to prevent negative pressure issues, ensuring healthy indoor environments and optimal performance for other exhaust systems.

Exhausting the Unwanted

From general ventilation to hazardous environments, Canarm has your exhaust needs covered.

Direct Driven Propeller Fans

Known for their straightforward, efficient operation, Canarm’s direct drive propeller fans (AX, GSF, P, SD, XFS) are workhorses for general ventilation, moving large volumes of air in warehouses, workshops, and agricultural buildings.

Sidewall Exhaust Fans

A classic and effective solution, Canarm’s sidewall exhaust fans (ADD, HVA, HV, XB) are designed for easy installation and powerful exhaust, making them ideal for a wide range of commercial and industrial settings.

Rooftop Exhausters (Downblast & Upblast)

For comprehensive building ventilation, Canarm offers both downblast and upblast rooftop exhausters. Downblast (300DD, ALX-DB, ALX-DD) units are perfect for general exhaust, while upblast models (ALX-UB, RB, RD, RTA) are crucial for venting contaminated, hot, or greasy air away from the roof and equipment, often found in commercial kitchens.

Food Truck Exhaust Fans

Canarm meets the unique and stringent demands of a mobile kitchen, offering a specialized upblast exhauster (ALX-UD) designed to handle the greases-laden air and high temperatures, ensuring compliance and safety for your culinary operations on the go.

Commercial Bath Exhaust & Ceiling Mounted Bath Fans

Don’t underestimate the importance of proper humidity and odor control in commercial restrooms. Canarm provides specialized commercial bath exhaust systems (BPT, CEPD, CEP) and discrete ceiling mounted bath fans to ensure a fresh, comfortable environment for occupants.

Safety and Specialization

When standard isn’t enough, Canarm excels in providing solutions for critical applications.

Explosion Proof Fans

In environments where flammable gases, vapors, or dust are present, safety is paramount. Canram’s explosion proof fans (AX, P, SD) are meticulously engineered and certified to operate safely in hazardous locations, preventing ignition and protecting personnel and property.

HEPA Filtration

For environments demanding the highest air purity, Canarm’s HEPA filtration units (HFB) integrate seamlessly into your HVAC system, capturing microscopic particles, allergens, and contaminants to deliver exceptionally clean air, vital for healthcare, laboratories, and sensitive manufacturing.

Comfort and Efficiency

Canarm’s solutions also enhance comfort and contribute to energy savings.

Ceiling Fans

More than just residential comforts, Canarm’s industrial-grade ceiling fans (FANBOS) are powerful tools for destratification and general air circulation in large commercial and industrial spaces. They help distribute heated or cooled air more evenly, leading to significant energy savings year-round.

Your expert Canarm engineering partner

Getting static pressure calculations, CFM specs, or hazardous location ratings wrong can stall a project or result in equipment failure. That’s why we ensure your Canarm equipment is specified perfectly from the start. Our support team is readily available by phone or email to help you calculate specs, verify dimensions, and ensure you get the exact Canarm configuration your project requires.

Your dependable partner for high-performance products

Our engineering team is just a quick phone call away to provide expert guidance and ensure you have the right specialized gear for every job. Plus competitive contractor pricing, deep stocking and quick shipping from our East and West warehouses.

Join our TradePro program for below-MAP tiered pricing, direct-dial engineering support and priority shipping.

 

Dayus: Where Design Meets Deadlines

On June 10, 2026, in news, by Michael
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Dayus is the fastest, most reliable source of high-end aluminum registers, grilles, and louvers in the HVAC industry.

Your projects deserve better than cheap builder-grade vents. Dayus crafts premium, architectural-grade aluminum registers and grilles that transform an everyday eyesore into a flawless design feature. Exceptionally durable, beautifully powder-coated, and engineered for quiet comfort, Dayus products give homeowners the lasting luxury they want, and give contractors a hassle-free installation backed by an incredible 3-Day Quick Ship optional production choice on custom sizes. It’s the ultimate upgrade for clients, and the ultimate timeline-saver for your business.

See our full selection of Dayus Products

Made with fully extruded aluminum, these grilles won’t rust, making them perfect for areas with high moisture such as bathrooms, kitchens, or laundry rooms.

Due to pressure-fitted nylon pivot pins, the natural vibrations of the HVAC system are absorbed rather than transferred as noise.

See our selection of Bar-Linear Grilles

New AMCA Certified Performance for water penetration and air performance of louvers is now available. This data can be found directly on page 3 of each applicable product’s submittal document.

See our selection of Louvers

From standard finishes such as white, silver, brown, and raw unpainted aluminum, to select powder coat finishes such as flat black, grey, light tan, and gloss black, Dayus eliminates the restriction of standard “appliance white” vents.

Dayus Color Chart

Dayus bridges the gap between premium architectural design and job-site reality. For homeowners, they transform an overlooked mechanical necessity into a sleek, high-end design feature, offering rust-proof longevity, rattle-free engineering, and an endless array of custom colors. For contractors, Dayus eliminates the logistical nightmare traditionally tied to custom orders, backing their premium line with an unmatched 3-Day Quick Ship production option and performance certifications like AMCA.

When a project demands custom sizes and high-end finishes without blowing past deadlines, Dayus stands out as the industry benchmark where quality and speed finally coexist.

Find Dayus now on HVACquick.com

 

IAQ-Office

On April 13, 2026, in filtration, HEPA, IAQ, news, by neil
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As measurement of indoor air quality (IAQ) parameters have gotten better, faster and cheaper we’ve taken advantage of this to instrument our offices.

Read more to see why everyone should care about IAQ.

You’re looking at data from our office in Medford, Oregon. The data is sent to our servers every 5 minutes. (refresh page to see newest data)

Carbon Dioxide (CO2):

Particulates:

  • We are measuring PM2.5 which in our case is the weight (micrograms) of particles less than 2.5 microns per cubic meter
  • These small particles (from diesel, smoke, etc) are particularly bad for us because they make their way into our lungs and are hard to expel
  • Kitchen activity (frying, searing, burning fuel) are also big contributors to indoor particulates
  • If you have low levels of particulates, you’re probably cleaning the air of aerosols. Aerosols are the primary vector for air borne viruses (think influenza, colds, covid) https://pmc.ncbi.nlm.nih.gov/articles/PMC8721651/
  • How we fixed our particulate problems
    • MERV13 filters on all outside air coming into ERVs and HRVs
    • MERV13 filters on all air handlers
    • CR style filter boxes situated throughout the building
    • HEPA filtration units
    • Make sure that you have good kitchen exhaust to reduce particulates from cooking

What can you do ?

Footnote on ERVs and HRVs

  • The smart way to fix CO2 problems is to use Energy Recovery Ventilators (ERVs) or Heat Recovery Ventilators (HRVs)
  • You can also just open a window, but this will lead to loss of conditioned air
  • ERVs and HRVs minimize loss of conditioned air by recovering the heat or cool, while still bringing in fresh and filtered air

Note on our measurements

We measure particulates and carbon dioxide levels (inside and outdoors). A thorough analysis of air would include volatile organics (VOC’s) and other pollutants, which is beyond the scope of our measurements. If you have good values for CO2 and particulates, and you don’t live next to an airport or other concentrated pollution source, your other IAQ values will most likely be just fine.

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Breathe Easier: Introducing AMBlue II

On December 2, 2025, in news, by Michael
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Indoor air quality (IAQ) is a growing concern, with experts believing it has become worse than outdoor air. When moisture is present in an HVAC system, the potential for odor-causing mold, fungi, and mildew exists. This can lead to staggering remediation costs, related cleanup, and possible health issues.

Fortunately, JPL has partnered with Agion to deliver a solution: the AMBlue II Antimicrobial Flexible Air Duct.

The Smartest Defense in Your HVAC System

Agion is not your average antimicrobial; it’s the “smartest” on the market.

  • Intelligent Activation: Agion only activates when it needs to defend against microbes. It automatically releases its antimicrobial components when conditions for bacteria growth are present.
  • Longest-Lasting Protection: Leveraging copper and silver technology, Agion utilizes a unique zeolite and ion exchange process. This capability extends the effective benefits, resulting in the longest-lasting protection against mold and microbes.
  • Proven Safety: This technology is proven to be safe and long-lasting, with no harmful or toxic affects to people, plants, or animals.
  • HVAC Registered: Agion is EPA registered for use in heating ventilation, and air conditioning application

Why Choose AMBlue II for Your Home?

JPL developed AMBlue II to be the first flexible duct specifically designed to resist microbial growth on the inner core. The product has a proven track record, with millions of feet successfully installed without any reports of mold or mildew. Furthermore, AMBlue II is certified by Greenguard as “Highly Mold Resistant,” is energy efficient, features R8 insulation, and achieves near zero air leakage when properly installed.

Features and Benefits of AMBlue II

  • Underwriters Laboratory (UL): AMBlue II carries the most recognizable and respected name in product name in product safety and quality.
  • EcoTouch Insulation For Flexible Duct: AMBlue II is Formaldehyde Free and manufactured with Owens Corning insulation. Ecotouch is a thermal and acoustical fiberglass insulation bonded with a thermosetting resin for the ultimate durability and delamination mitigation.
  • Silver – Naturally Occurring Antimicrobals: Permanently applied on the inner core (air stream) side of the flexible duct to specifically resist microbial growth.
  • Greenguard “Gold” Certification: AMBlue II is Greenguard “Gold” certified by a third-party independent IAQ testing lab for the highest standard in antimicrobial protection.

Looking at the benefits of flexible duct with antimicrobials versus the staggering costs of remediation, the potential health issues and cleanup cost of moldy duct work, AMBlue II offers you an increase in property value, a healthier environment and peace of mind for a small price.

 
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