Wet and dry bulb explained

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Published 2013-09-08

This one is the first of the humidity videos. We will be covering how humidity is measured and what effect it has on the refrigeration cycle.
This video is part of the heating and cooling series of training videos made to accompany my websites: www.graycoolingman.com and www.grayfurnaceman.com to pass on what I have learned in many years of service and repair. If you have suggestions or comments they are welcome.
If you are a homeowner looking to repair your own appliance, understand that the voltages can be lethal, the fuels are highly flammable and high pressures are used. Know your limits.

All Comments (21)

@radosney 2 years ago

I've watched 6 videos trying to explain this, and it wasn't until this one that I got it - thank you.
@phillipsierra2074 8 years ago

One of the best videos on dry bulb-wet bulb I have e seen. You're the man Grayfurnanceman!!!
@ajm12180 10 years ago

I've been in the field for a year and a half... I was a automotive mechanic that switched fields,your videos are great.. Just wanted to say thanks and definitely keep making them because they are extremely helpful.
@kawaiibtslover1012 1 month ago

went to hvac school and he start talking of wet and dry bulb and never explain in an uderstandable way , he is a genius on hvac but he is a bad teacher, this vid gave me a better idea thanks
@zukuandmumus 8 years ago

I was struggling to understand what it was until I came over this video, good job man, thanks a lot!
@bibo3373 8 years ago

Went to an engineering site and they didn't explain this in an understandable , practical way. You did, thanks.
@pingpong9656 1 year ago

What a difference a great teacher makes.
@ronie1337 21 days ago

Thanks for the info. FYI, I made my W.B. sock from the bottom hem on a old undershirt and slit it over a meat thermometer probe. It Works!
@danjf1 4 years ago

I was looking for meteorology info about wet bulb and I think you explained it better than the weather guys and gals - Thanks!
@thomasnorling3525 9 years ago

I would like to thank you for putting these oil burner furnace videos on you tube. we ran the tank dry last year and that brought us some problems. the furnace seemed to work fine after filling the tank and bleeding he air out of the fuel line. Then it just stopped working. I watched your videos and then I applied the knowledge that I had gained to my furnace. I ended up cleaning the nozzle and the entire fuel line using your instruction. Got a perfect running furnace as a result. Thanks!!!
@hg2. 5 years ago

Your channel looks like the One Stop Shop for HVAC beginners. Thank you!
@dantekman 7 years ago

Dude... good job! I now understand something I've wondered since childhood. Thanks
@ThePills755 6 years ago

Great explanation. This is the first video I have seen of yours and I sure look forward to your others. Thank you for your time.
@navyretired230 2 years ago

one of the best videos ever
@ltback 10 years ago

You are very good at explaining things. Thank you.
@PYoung2493 9 years ago

You explained to me what wet and dry bulb means very clearly. I was not able to understand this concept for years after reading technical material, but now I finally get it. Thanks a whole bunch!
@HansHVACR 10 years ago

Great job on explaining the wet bulb.
@michellesaldanha5720 9 years ago

Great video - easy to understand!! 'The SOCK' is now recorded forever in my study notes!! :P
@randallvalentia3920 4 years ago

Thanks for posting this. This helped me where my professor could not.
@danielsteele7544 6 years ago

Very exellent,good explanation, never heard such a common sense explanation. Thank you so much for teaching us bone heads.