Understanding Manual J - HVAC Essentials 

Same here!

Thanks for trying, I still don't have a clear observable way to understand "heat seeks cold". Air colder than 32 degrees F freezes water. An hot stove may burn me, I don't know how the burner feels, only how I feel. I don't want my finger to touch a hot stove nor a liquified gases. I totally understand different temperatures seeking equilibrium through convection and conduction, and that heat also radiates, and higher heat will produce more radiant heat than cooler heat. I just haven't seen an exercise of "heat seeking cold" that cannot adequately be explained by different temperatures simply seeking equilibrium through convection or conduction or the fact that something is warming up because it is absorbing radiant heat. For the most part, my current understanding hasn't really hindered me from understanding how HVAC carries heat from one place to another, I just haven't seen a great example of "heat seeks cold", hence my post.

I've done more research on this and understand the flow of heat is from hot to cold now. However I still get hung up when people say the CAUSE of heat transfer is BECAUSE "heat seeks cold" in many scenarios. Watch 2:30 to 2:54... He said this transfer of heat from the cold outdoor air to the colder heat pump coil worked "BECAUSE hot goes to cold". Now, does a heat pump really work primarily BECAUSE "heat goes to cold" or is it really working primarily because of convection of air movement causing the outdoor air to flow across the coils and the conduction conduction through the aluminum fins to the copper/aluminum tubing and finally to the refrigerant. In the scenario in the clip I pointed out, it's much easier for me to simple understand that different temperatures want equilibrium and to understand that convection and conduction were vastly more important than the direction heat flows. P.S. your analogy was pretty good.

Great video though

denny3161 lol

But he died😣😣😣

It's possible that a Manual D was not done which calculates the necessary duct work needed in your home. Both a Manual J and D need to be done in order to get your AC system working optimally. Of course, it's quite possible the person who did the Manual J did it incorrectly too.

someone did not enter correct info

Do you really think global warming isn't real? Or are you trolling?

@@OramWerd I don't.....but if you can tell me why you do it might convince me....so please

@@OramWerd Would you also explain how CO2 is a bad thing, since without it there would be no photosynthesis, thus plants would die not thrive. Climate change is a real occurrence, happened from day 1 of this planet and will continue till ?. But this man made global warming shit is getting old. It is clearly based on taxation and control.

@@ZERO-F2G- global warming is based on taxation and control? how is that based on taxation and control? LMAO.

@@helpmeimconfused Your user name fits you well. My comment was clear for anyone with cognitive skills. Global warming is controlled by the sun and other factors. Man-made global warming is a taxation and control scheme. Must suck to go thru life totally confused, LMAO!

Blackmullet40 - Still talking stupid 5 years later?