ETi^® 400 High-Efficiency Pool and Spa Heater

The ETi 400 pool and spa heater brings you TitanTough Direct-Fire Titanium, the toughest ASME certified construction heat exchanger ever built. At 96% thermal efficiency, the ETi 400 heater has the highest efficiency ever built in its class. All this in a heater that operates with ultra-quiet noise level and out performs energy emissions standards.