Monday, 5 October 2020

Heating a pool - anybody familiar with this ?

How can I calculate the heat loss of a NJ residential swimming pool? About 40,000 gallons.

Ignoring heat losses; to raise the temperature one degree per hour will require about 320,000 BTU's. And I can't see any less of a temperature rise being worth much in practical terms - just raising the pool temperature from 60 to 80 would take almost an entire day - and that's without factoring in any losses.

The builder is pushing for a heat pump but seems to know little about them. And doing the equivalent amount of heating would require the heat pump to be over 20HP/tons. Right? The one being proposed is 175,000 BTU's - which just off the skeptical top of my head seems like it might not even be able to maintain the pool temperature (against losses) let alone actually increase the pool temperature. Especially in any use-able amount of time.

I am a big fan of simplicity. Speaking of which; an alternative proposal is to use a natural gas fired boiler made by a company called: Pentair. The advertising does speak very highly of the product. <g> Titanium HX and 96% efficient and so forth. Anybody know anything about them?

I gotta tell ya; Justin General: a 96% efficiency rated, located-outdoors, product really makes my inner-service-guy cringe. <g>


source https://hvac-talk.com/vbb/showthread.php?2222741-Heating-a-pool-anybody-familiar-with-this&goto=newpost

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