Can I use an inground heater on an above ground pool? I was told the output would be too hot and melt the hoses and fittings. Maybe that defends on the flow rate. I was also told by someone else that a 100k btu heater would be to small.
What is the best way to get the rights size considering pool size, pump size, flow rate, etc? I have too much shade for solar and am afraid and 50K btu heat pump would be too expensive and not supply enough heat. So I'm leaning toward natural gas.
I have a 15x24 AGP with 3/4hp pump and sand filter.