Airflow CFM Measured with a Hot Wire Anemometer!

In this HVAC Training Video, I Show How to Use an In-Duct Hot Wire Anemometer to Measure The Volume of Airflow in an HVAC System's Duct. CFM is Cubic Feet Per Minute and you need 400 CFM of Airflow for every (1 Ton) 12,000 BTU/HR of Heat Removal Capacity for Air Conditioning Units. Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.

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Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
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[stuzman]

One of the best demonstrations of how to measure CFM. I like where you take the measured air and compare it to the CfM formula is comparing the real and math worlds. Great video Craig and keep up the good work, 😀👍

[jdere]

Great job, you even showed how to do the math and check air flow by temp rise method!
Who would dislike this video?

[garypoplin]

6:20 - It looks like you’ve practiced to near perfection on this process. Spot on 11s each traverse!

[FooDaki]

i always heard how hartd its to measure airflow at a job, this is an incredible tool ... thank you

[jaimegutierrez]

Thank you for the videos your a legend

[jimbola]

excellent video partner thank you for sharing!!!!.

[zekenzy]

Great video. Thank you for sharing . Could you do video for heat pump winter inspection ? how to know Heat pump is work good in winter?

[theairconditioningguy]

I've yet to do this. Thanks for the info!

[gadgethunter]

it would be nice to see you include the units of measurement and how they add to or cancel each other out so you arrive at the value you are working out. I always found it very useful when writing exams to include all the units when working through the formulas. Maybe an advanced version of the video. Or possibly that is already addressed in your books? Other wise excellent presentation. I will recommend your channel to my peers and apprentices in the industry.

[Sctronic]

Do have a video testing a gas furnace cfm? Nice seeing it being demonstrated.

[tommyhummer]

How does this compare to a flow plate? Is it as accurate?

[kanive]

How would you do this if it was flexible duct? Can you drill holes in the flexible duct and plug them just like you did with the ducts in this video? Or would it be different?

[biblebloopers]

What if I want to measure a specific duct going into a room? And what if it's flex duct? How do you measure that?

[Behuman]

Grt video sir... Can you pls clear a doubt do we have to enter duct size to get directly reading in CFM !!!

[kaikai]

what's the formula for a gas furnace?

[solvintx]

Great video !!!! Question, Where do we measure cfm when working with flex duct? At the plenums?

[ore-georgecicovic]

Great video like always. Have one question. How to messure CFM if unit is working only on cooling and no heat strips for amps reading since ams on blower are to low. Thanks

[zxdriver]

How about at your individual vents, equal them out?

[sportsman]

Do you have it on just fan or is the Ac running when you do this test?