I recently got a free Laars Lite 2 propane heater from a friend of mine and had my PB plumb it to my system when they installed a new filter for me. It's 125,000 btu's which I know is undersized for my 24,000 gal IGP but I figured it was free and I'd only use it occasionally to boost the temp of the pool 10-15 degrees on weekends such as the upcoming holiday weekend.
Long story short. I fire up the heater the other day to see if it works and sure enough, it lites and appears to be doing it's thing. However, when I stick my hand in the pool by the returns the water feels like it's coming out the same temp as the surrounding water. I let it run for a good 20 minutes but no change.
Stupid question #1: Shouldn't the water feel warmer if not hot?
Stupid question #2: Is the heater way undersized and therefore useless and I should get rid of it?
Stupid question #3: Did I not wait long enough for the water to cycle through and become warm?
I think the water might be flowing through the heater too fast to heat up. If thats the case how do I slow it down?
Thanks in advance. You guys are a great help.