The Peerless® PUREFIRE® gas-fired condensing boiler is a high-efficiency boiler for residential applications and is available for either natural or LP gas. The direct vent, sealed combustion boiler has an ultra-high 95.85% efficiency and is the most thoroughly tested high efficiency boiler on the market! The PUREFIRE is ENERGY STAR® approved and has ASME and ETL certifications for both the U.S. and Canada. A unique condensate system with built-in neutralizer component and float switch protection is a top feature of the boiler. A fully modulating burner with 3 to 1 flame modulation assures dependable operation and maximizes boiler efficiency. Other great boiler features include a high grade stainless steel burner and heat exchanger, 120 volt convenience outlet and LoNOx operation. Zero clearance to combustibles, easy access to controls and leveling legs are other standard features that allow for ease of installation and maintenance. The PUREFIRE is equipped with a full one-year warranty (see “Warranty” section on this site for complete details).