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Watch out for inflated air flow ads on line

In 2018 QuietCool announced new models for the year. The top two are the ES-6000 and ES-7000. Those numbers are created by rounding up the false air flow that QuietCool has published using air flow figures that they say are ” tested via a device that is calibrated to NIST standards ”
That statement has nothing to do with the test that is required by the California Energy Commission, HVI-916.
The result is that there are at least 12 large online retailers that have posted big headlines saying “QuietCool ES-7000 whole house fan 6,878 CFM”

BE CAREFUL – the truth is the CFM per HVI-916 is 5170.

Those retailers include
WholeHouseFans,com
REWCI.com
EComfort.com
IndustrialFansDirect.com
Amazon.com
WholeHouseFanDeals.com
Walmart.com
Sears.com

 

Watch out for misleading air flow claims

In 2017 the California Energy Commission set a new requirement for whole house fan makers to more accurately report their fan performance. The commission requires that each fan maker test their fans to the Appliance Efficiency Standards HVI-916 Test Method. All of the suppliers are complying with that rule. But one, QuietCool, has devised a way to get around the rule in a clever way. QuietCool created a new set of models for 2018 with model numbers like ES-6000 and ES-7000 and they now present the performances using a reference to a standard that has nothing to do with performance testing.

QuietCool has this performance data on the web page “https://quietcoolsystems.com/products/energy-saver/

“QC-ES-7000 Airflow* Hi: 6878 CFM  HVI-916 Airflow (CA Title 24)** 5170 CFM
*Listed airflow specs are tested via a device that is calibrated to NIST standards.
**Recommended SQFT Coverage @ 2 CFM per SQ FT”

To the company’s credit, it has the specification for HVI-916 air flow on the line after the inflated air flow.

NIST standards do not require the same test as HVI-916 so the air flow stated is higher than what you really get in your home. What is IMPORTANT here is that both the model number (7000) and the higher air flow (6878) are misleading. The true air flow when installed in your home is the HVI-916 air flow (5170) – far lower than what they imply by their model number. Notice that the ** comment is an error – it has nothing to do with air flow.

SO WHEN COMPARING SOURCES FOR YOUR HOME, USE ONLY THE HVI-916 AIR FLOW.

Good news – a survey of all the other sources listed by me on this web site shows that they all are now showing true HVI-916 compliant air flow specifications. Here is the latest 2018 list in order of performance to HVI-916:

Thorwaldson    6320 CFM
VentCool          6123 CFM
Airscape           5350 CFM
QuietCool        5300 CFM