The Solar Pool Heater helps you heat your pool water using solar energy. Pool water is fed from the pump to the pool heater where the water is warmed as it circulates through the heater by the sun's energy and is then returned to the pool. This unit will raise your pool by 10 degrees within 7 days. It can be used for both above ground and most inground pools. Multiple heater units can be connected in a series to increase heating efficiency.
Bought this for my 24' above ground - my 2'x20' ribbon heater developed leaks last summer.
I was hesitant looking at it online..it looked so small..but the claims that it would heat my pool reeled me in, and the idea it would not take up part of my backyard was cool.
That being said, when I hooked it up, the hoses immediately blew off (I have a Hayward 1hp - standard for most pools). They blew off 3 more times, no matter how hard I tightened down the hose clamps - the last time, pumping about 6" off the top of my pool before I caught it.
To top things off, when I got in the pool, after the thing was running for 6 hours in 90F bright sun, the water was NO WARMER coming out of the return.
Don't waste your money...unless you have an inflatable pool from Walmart or something.