The Intex 3kw Swimming Pool Heater has safety features built in that would normally only be found on heaters much more expensive. We would recommend it to anybody who has an 8ft, 10ft or 12ft pool, it will even function well on a 15ft Easy Set Pool. You will not regret buying The Intex 3kw Swimming Pool Heater. Intex swimming pool heaters are specifically designed for the Intex style of pools and run off an RCD protected 13-amp standard household socket. A SOLAR COVER IS REQUIRED FOR USE WITH A HEATER