Lochinvar EnergyRite® Natural Gas Pool and Spa Heater 199K BTU | 100143209

This heater is designed to raise and maintain water temperature by circulating water through an internal heating system before returning it to the vessel. As water passes through the unit, heat is transferred efficiently to achieve the desired temperature and offset heat loss caused by ambient conditions, evaporation, and system use. The heater provides consistent thermal output to support both initial heat-up and ongoing temperature maintenance.