EcoSmart SMART POOL 18 Electric Tankless Pool Heater, 18kW, 240 Volt, 75 Amps with Self Modulating Technology Flow Activation Ecosmart Pool Heaters are compact and easy to install for a new or existing pool Set your temperature digitally to increments of 1-Degree. Set it and forget it. Compatible with Ecosmart Remote Control Can be used as an alternative to or booster to heat pump.