Weil-McLain GV90+3 56,000 BTU Output High Efficiency Gas Boiler (Nat Gas & LP)

Note: Product Title reflects this boiler's IBR Net Output Rating Features: Durable cast iron primary heat exchanger 90+% AFUE efficient boiler Condensing stainless steel secondary heat exchanger Unique 7 pass heat exchange design maximizes heat transfer Vents with PVC Multiple venting options - Direct Vent, Direct Exhaust, Concentric Easy Conversion To Propane-Kit included Benefits Maximum Heat Exchanger Performance Reliable boiler design Smart Circulator Strategy - Built-in dual circulator strategy provides boiler protection Proven Control Strategy - Allows easy integration of outdoor reset to take advantage of low water temperatures