Spa Heat Time

kbenton7

New member
Dec 7, 2019
3
Charlotte, NC
New pool owner here. Inground pool/spa. I have a spa that's about 937 gallons (7' x7'). My pool/spa heater is a Raypak (399,000 mbtuh). I started the heater for the first time and it took 2 hours to raise it 51 degrees (started at 49 degrees). The air temp was only 58. Should it take that long?
 
Welcome to the forum!!

With appropriate inefficiencies, I am showing 1 hour and 49 minutes to heat your water. So, pretty close.

I have an old spreadsheet I use. Let me see if I can find it on the forum already.
 
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