When HN users recommended it
1 HN user recommended this in 2010, in one comment.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
SmartPool SunHeater Above Ground Pools
Amazon's catalog no longer lists this product (checked 2026-11-02). The name comes from the link HN users posted.
Cover it with an insulated top when not in use. Your pool is colder than ambient because the top surface is constantly evaporating, leaving behind the slower moving molecules.
A solar heater would work better (if you have sun) because it will absorb more energy than ambiant air convected over the same area. And you would need a fan for a heatsink if its wasn't windy. http://www.amazon.com/SmartPool-SunHeater-Above-Ground-Pools...
A way for you to test it would be to do it on a small scale - maybe buy some copper tube and circulate an aquarium with the water filter pump.