The AstralPool range of Heat Pumps now includes both standard technology and the new Inverter technology. Inverter technology allows the swimming pool heat pump to reach an extremely high COP compared with normal heat pumps in the market. The unique inverter technology reduces the speed of the unit as it reaches the desired temperature. This greatly saves on energy and enables you to enjoy swimming quicker and at a constant temperature.The Viron Inverter Heat Pump range uses R32 Gas Refridgerant, which offers higher efficiency and longer pipe runs and requires less refrigerant volume per Kw. This means quicker heating times and less energy used to heat up your pool. Reduced electricity consumption by 10% and lower environmental impact.