RE: How do you measure system airflow?

RE: How do you measure system airflow?

So much of what we do requires either measuring or approximating airflow measurement on the entire system (over the evaporator coil) what method or methods do you use?

If you absolutely had to get a system air measurement within 5% of reality on every call what method would you use?

BryanOrr Pretend Internet Professor Asked on March 3, 2018 in Residential HVAC.
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15 Answers

I do not  have the money right now to get any fancy tools for CFM. On my Maintenance visits I usually use static pressure and reference Blower charts from the manual. However since Measurequick has been released I use that. Apparently that is pretty accurate. I was contemplate on getting a TESTO Hotwire, however not sure how good they are.

Rookie Answered on March 3, 2018.

The testo smart probes hot wire is not that costly and is what I currently use. My complaint is it would be nice if it extended further.

on March 3, 2018.
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