Pentair ETi 250 High Efficiency Heater 250K BTU

The Pentair ETi® 250 is a premier 250,000 BTU natural gas heater that sets a high standard for energy efficiency and longevity in residential pool and spa heating. Boasting an impressive 96% thermal efficiency rating, this condensing heater utilizes advanced technology to capture heat that would typically be lost through the exhaust, allowing for incredibly fast heat-up times while significantly lowering fuel costs. The unit is built with a high-grade TitanTough™ titanium heat exchanger, providing a virtually indestructible barrier against corrosion and scaling, which is particularly beneficial for salt-chlorinated pools. Its design includes a versatile category IV venting system that allows for indoor or outdoor installation, along with a fully sealed combustion chamber that operates with minimal noise. A sophisticated digital control interface offers precise temperature adjustments and comprehensive system diagnostics, while the rust-proof composite exterior ensures the unit withstands the elements. Because of its robust internal architecture and industrial-grade titanium components, the heater is substantial in build compared to traditional models. The Pentair ETi 250 High Efficiency Heater weighs approximately 240 pounds, offering an ultra-reliable, eco-friendly, and powerful heating solution for discerning pool owners.