Bestway Pool Heater 2800 W 42.6 x 26.6 x 18.7 cm

This item was perfect. It took about ten hours to heat 10ft off ground pool. Best used when weather is going to be really warm. Used it once when it was nice but we had a cold breeze which made heating pool up longer. Would I buy another one, yes. Only down side is it came with EU plug and the one they gave me was no use to where I plugged it in. I would definately recommend this product x

Try and solar heater. Expensive to run for small gain. It says it takes 8 hours to raise my pool (12000 litres), by one degree and at a cost of about £8 i can't see its worth it. It does explain that so you should be aware of what you're buying.