YOu also through in so much stuff to make something simple over complicatedĪre you saying airflow on a single stage van varies when heat is called for, and when just the fan is running by itself? Lots of things would be useful, but tell me, as a homeowner how would a person know total cfm going to the vents So I go to a vent, do a test, close a vent somewhere else, do a test And as well test them as zones open and close. I want to know what increase in airflow is from the farthest vents, if I close the closest vents to the furnace. Many people on othger threads want to measure the air coming out of their vents to balance their system. I want to test what the airflow is, with even just the fan running. It is a chinese company but even if you buy american, the tools are all made in china anyway. Have no idea if holdpeak is good quality though. I was looking into buying a multi-meter meter from holdpeak last year, emailed support and they actually answered my questions, which is a good sign. This is one of the first on the page that can accept area (it has an area button). What an anemometer measures is velocity, not cfm. If you do buy one, look for something that allows you to enter the open area of the vents so it calculates airflow/cfm on the fly.
Can help determine if you have a major leak.
It would be useful to determine total cfm going to the vents vs estimated system airflow based on temp rise test, and how it varies as dampers are adjusted, when just one zone is on. I'm unsure of how much value the tool would be directly for balancing without knowing the heat loss of each room and how much airflow each needs.
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