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Thermal Destratification Fans

On November 13, 2018, in news, by Nicole

AirScape has developed a new Destratification fan designed to redistribute air throughout buildings to avoid hot air accumulating up at the ceiling.

Thermal stratification causes cold air to settle which forces hot air to rise. It can regularly cause 10 or more degrees variance in the temperature of a space. This usually leads to overheating in the Winter to compensate for the cold air felt in work areas. In the Summer, the air stratification often causes cold pockets from the A/C.

Destratification works to completely mix the warm and cold air. It helps move warm air down in Winter or to eliminate the cold pockets in the Summer, equalizing the temperature in the building. This drastically reduces heating and cooling costs and raises the overall comfort levels of the building occupants. It works best when pushed smoothly over a long distance to properly mix the high and low air temps, as this fan does, as opposed to the old method of large, slow moving rotating ceiling fans. Destratification even works in greenhouses, distributing heat evenly and keeping air moving over plants.

The AirScape DeStrat Fan can be used on the floor or suspended to blow air down or across the space. It moves an amazing 1500 cfm on high, with 10 speed settings to choose from, 3 times the cfm of most Destratification fans on the market.

Here is a quick video of the AirScape Destrat Fan moving smoke on speed 5 over 100 ft.


Wonder if it will work for you? Take a look at how well it worked in our warehouse office (1400 sq ft, 14 ft ceilings with ceiling diffusers, leaky doors and drafts – my feet are always cold). We used the fan on speed 3, 788 cfm @ 19.3 watts.

The heat at the ceiling quickly dropped as the air was moved downwards, reaching a nice balance within 1 hour. We did not have a perceptible draft at this speed, and everyone reported higher temperature comfort than before (my feet were finally warm). Since we’ve definitely hit cold late Fall weather here in Oregon, the regulated heat was really appreciated by everyone.

Available for pre-order now:


New AirScape Product Update

On October 31, 2018, in cool products, news, by Nicole

Direct Vent System for Greenhouse and Warehouse Ventilation

Engineers at AirScape are currently working on the finishing touches of a direct vent exhaust fan designed for industrial and commercial applications such as large indoor greenhouses and warehouses.

The system can be configured for roof or wall exhaust and has automatic Powered AirLock doors. There is an inlet louver with a Powered AirLock so that the space can be sealed up when no exhaust is desired.

Preliminary airflow testing is still incomplete because it outperforms our test chamber’s capacity…  Well over 8500 cfm on only speed 6 (out of 10)! More data to follow as we recalibrate be able to accurately test such high airflow.

For more info, email us at


New Filtration Products Part 3

On July 27, 2018, in filtration, IAQ, by neil

One Big Reason to Get a HEPA Filter

Panorama of a hilly expanse featuring a large smoke trail covering more than half of the visible sky.


HEPA filters stop the vast majority (99.7%) of airborne particles greater than 0.3 microns. Most of the time, you’ll never need a filter that stops even smoke particles, but when you do, we have what you need.

The CFB-HP is a filter box that is meant to be used with an external fan. We also have several HEPA filter/fan combination boxes, but here’s a few reasons why you would use an external fan:

  • You want to distribute air evenly throughout your house or office
  • Very low sound levels (talk to us about how to do this)
  • When paired with an EC (electronically commutated fan), the energy use drops dramatically
  • You may want to direct the clean air or filter air from a particular room or area
  • This filter box works well with HRV’s
  • To avoid smoke infiltration during smoke situations, one strategy is to pull outside air through this HEPA filter and pressurize your house with clean air.

As always, please feel free to call our technical sales people for any application assistance. 888-855-7229 or email us at


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New Filtration Products Part 2

On July 25, 2018, in filtration, IAQ, news, by neil

We designed the  CFB series of inline filter boxes to do the following:

  • Oversized 4″ deep MERV 13 filter
  • Easy removal of filter
  • Low pressure drop with conical transition

HVACQuick CFB Series MERV-13 Inline Filter Boxes



New Filtration Products Part 1

On July 24, 2018, in cool products, IAQ, by neil

Over the past 2 years we’ve been building filtration products, so maybe it’s time to announce them…

The first unit we have is our IFB series. This “Inline Filter Box” has a MERV6 filter and is meant for general purpose filtration.  MERV6 is considered a “better residential” level of filtration. [Here’s a good overview of MERV levels]

HVACQuick IFB Series Inline Filter Boxes

This filter box is commonly used for filtering incoming fresh air to a furnace or air handling unit. If desired, we can provide inline fans all the way from 100 CFM past 1200 CFM.

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An Investment in Green Packaging

On October 11, 2016, in cool products, did you know, news, by Tripp Androy

If there’s one thing that’s true about being an online retailer, it’s that you go through an incredible amount packaging material. That’s always been a sore spot for us here at HVACquick, considering our commitment to being as environmentally friendly as possible—it’s more likely than not all that packaging ends up in a landfill somewhere. It’s something of a comfort that cardboard boxes are actually pretty green (since so much of them come from recycled paper), but still, we can’t afford (as either a business or as environmental citizens) to be constantly replacing products damaged in transit to our customers. Thus, every day, we use a huge amount of bubble wrap and similar padding, which generally cannot be recycled.

Our (very large) Cardboard Dumpster

Given how much packaging we go through, you might expect our dumpster to be pretty big as well. It is not. We use only the smallest-sized commercial garbage dumpster; our commingled recycling dumpster is quite a bit larger, and our dedicated cardboard dumpster is even larger yet. We send approximately 7 cubic yards of cardboard to the recyclers every week. To get an idea of just how big a volume this is, consider that the largest residential garbage collection in our area (and probably in yours) is 96 gallons. That’s slightly less than 1/2 of a cubic yard, or less than 1/14th the volume of our cardboard dumpster!

We’re much happier to be recycling all that cardboard than sending to the dump, but, according to the Three R’s, it would be better for us to reduce that amount or find a way to reuse it. Almost all our waste cardboard comes from the boxes of items sent to us, which means we can’t easily “reduce” its volume, and we can’t send our customers their purchases in reused boxes, so recycling has always seemed the best we could do. It was an interesting day in the office, then, when one of our engineers ran the numbers and figured out we recycle a greater volume of cardboard each week than we use of bubble wrap. If only there were a way to turn our waste cardboard into something we could use in place of bubble wrap . . . .

Our new shredder

Our new Shredder

It turns out there is! A number of companies manufacture shredders that can turn flat sheets of cardboard into packaging fill. We’ve recently invested in one, and are beginning to “reuse” our waste cardboard boxes by turning them into a substitute for bubble wrap.

The advantages to this are almost too many to name here. Firstly, we’re saving money by no longer needing to pay for so much bubble wrap or cardboard disposal. Secondly, we’re replacing bubble wrap with something more environmentally sound. The paper in cardboard ultimately comes from trees, which are not only a renewable resource, but consume carbon as they grow. On the other hand, the plastic out of which bubble wrap is made comes from dirty petrochemicals (BAD!). Finally, once our customers have received their packages, the cardboard can be easily recycled, whereas bubble wrap cannot.

We’re very excited about this new development and hope you are as well. When you receive your first package with our new cardboard fill material, please make sure to reuse it in your own shipments or recycle it at your local recycling center.

Shredded Cardboard Packaging Fill

Shredded Cardboard Packaging Fill

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There’s an easier way to ventilate a house than installing separate fans for each bathroom plus a low-flow continuous ventilation system for the rest of the house. That’s a lot of installation time, several penetrations in the outside walls, and just too many systems to tie together and hope it all works. There’s good news though. There’s an easier way that not only cuts down on installation time, it also saves the homeowner money on energy bills.

American Aldes VentZone® IAQ systems are the only central ventilation systems available that provide precisely regulated whole-house Indoor Air Quality AND centralized bathroom fans in a single, highly effective and efficient ventilation kit. Each kit can provide low continuous IAQ ventilation and zone-based on-demand “boost” ventilation. Even better, they’re designed to meet ASHRAE 62.2, ENERGY STAR with IAP, LEED for Homes, and California Title 24 (CAL GREEN) standards.

Wondering how they work? The kits contain two Zone Register Terminals (ZRT-2s); these replace exhaust grilles in bathrooms and other high humidity areas like kitchens and laundry rooms. When a bathroom is in use, the ZRT damper opens for on-demand exhaust ventilation, yet the other bathrooms are not affected by the bathroom in use. Instead of the traditional exhaust fan, the kit has a centralized multi-port fan, so one fan can support 2-4 bathrooms. When the on-demand boost isn’t in use, the ZRTs still provide low-continuous airflow to keep the whole house ventilated.

Checkout the kits and pricing in our Zoned Exhaust Systems area:

Aldes VentZone System

Also, get more info from the American Aldes site:  VentZone® IAQ System

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Decorative Grilles and Registers

On July 23, 2015, in cool products, news, by radek

Exciting news!  We added SteelCrest decorative grilles and registers to our product lineup.  With their unmatched selection of designs, finishes, and custom features your sure to find the perfect compliment to any home.

The SteelCrest product line is divided into 5 main series:

  • Bronze Series: Least expensive. Punched steel and available in 3 patterns and 4 colors. Manufactured using 18 gauge steel.
  • Silver Series:  Laser-cut and available in 6 patterns and 5 colors. Manufactured using 11 gauge steel.
  • Gold Series:  Most expensive. Laser-cut and available in all 16 patterns and all 15 colors. Manufactured using 11 gauge steel.
  • Pro-Linear Series and Pro-Vertical Series:  Bar linear style grilles.  Approved for floor use.






California has begun mandating Whole House Fans in certain climate zones.  July 1st, 2014 brings us the latest edition (labelled 2013) of the Title 24 standard that mandates the installation of Whole House Fans in climate zones 8-14.  This applies to designers using the “Prescriptive Standards/Components Package” design method (vs. the Performance Standards method).

All AirScape Whole House Fans are Title 24 compliant.

You can find the standard for download on the website or via the link below.  Of particular interest is Section 150.1.

2013 Building Energy Efficiency Standards – Title 24

Title 24 position on whole house fans:

12. Ventilation Cooling. Single family homes shall comply with the Whole House Fan (WHF) requirements shown in TABLE 150.1-A. When a WHF is required, comply with Subsections A through C below:
A. Have installed one or more WHFs whose total Air Flow CFM as listed in the CEC Directory is at least 2 CFM/ft2 of conditioned floor area; and
B. Have at least 1 square foot of attic vent free area for each 375 CFM of rated whole house fan Air Flow CFM; and
C. Provide homeowners who have WHFs with a one page “How to operate your whole house fan” informational sheet.

Table 150.1-A in the standard breaks down which zones are required to install the whole house fan.  If you are not sure what climate zone you are in, have a look at the map below or click here for a city by city breakdown.


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Pressure Balancing Rooms

On November 5, 2013, in news, by radek

Central forced air heating (furnace) and air conditioning systems operate by pushing conditioned air to each room in a house.  To return the “stale” house air back to the furnace return registers have to be installed throughout the house, pressure balancing each room.

In a typical house these return registers exist only in common areas (1 or 2 per level) and not in individual bedrooms. To help the stale air get back to these central returns, builders will often undercut doors. These undercuts can be inadequate for providing enough air flow, especially when plush carpet and under-padding are installed or for large bedrooms with multiple supply grilles. Inadequate return air pathways can result in pressure imbalances, which can cause drafts and temperature differences between rooms or floors, leading to comfort complaints.

The typical recommendation is to provide 1 square inch of free area opening per 1 CFM of conditioned air being pushed into the room.

If building return air ducts into each room is not possible, one common option is installing jump ducts or transfer grilles in the rooms that are often closed. A jumper duct is a short piece of insulated flex duct installed in the attic and attached to ceiling grilles in the closed room and a common space.  This provides a return air pathway between the two areas.

Jump duct

Typical jump duct.  Note the sealant around the grilles.


Jump Duct installed in new construction.
Jump duct installed in new construction.

 Images courtesy of DOE’s Office of Energy Efficiency and Renewable Energy.