Sunspring 8kw Swimming Pool Heat Pump for Above Ground Pools up to 22m3, plug and play

I have a relatively small pool, around 5000l. Takes the temperature from 18deg to over 30deg in around 5 hours. Very impressive. Also pretty quiet. Second year of operation now and it's still running great. Only issue was my sand filter lets a little bit of sand by, over time it seemed to be blocking the heat exchanger, but after reverse flushing the pump and fitting a cartridge filter before the heater to stop it happening again, problems now resolved. So if you have a sand filter you might find after months of operation that it isn't flowing so well, reverse the pipework and flush it with the heater off, then switch the pipes back and it will probably be fine again.

Heats my large pool to above 30 degrees in a couple of days. Very impressive