Arctic Heat Pump is designed with modern technologies and works using the refrigeration cycle. As one of the best quality heat pump water heater- the Arctic Heat Pump is designed to work in below freezing temperatures. You can use our cold climate heat pump for hot water solutions that will prove to be cost-effective. To know more about the best quality heat pump for cold climate, please browse through this url: https://www.arcticheatpumps.com/how-heat-pumps-work.html