GWB9-075IH-3, 90% AFUE, Gas-Fired Water Boiler, 75,000 Btuh, 2.6 Gallon Capacity, Natural or LPG/Propane Gas

Cat # : 57L72 | Model/Part #: GWB9-075IH-3

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GWB9-IH Boiler

High-efficiency, gas-fired water boiler

The GWB9-075IH-3 boiler offers an AFUE rating of 90%, which means it converts a full 90% of your fuel into usable heat. And it delivers warmth quickly with a cast-aluminum heat exchanger that transfers heat three times faster than conventional cast iron.

75 Input MBH, 68 MBH Heating Capacity

Energy Efficiency

  • Cast-aluminum heat exchanger—transfers heat up to three times faster than traditional cast iron exchangers
  • ENERGY STAR® qualified—meets or exceeds EPA guidelines for energy efficiency, which means energy savings
  • Electronic ignition control—monitors water temperature and maximizes efficiency by turning on the burner only when needed

Home Comfort

  • Sealed combustion—minimizes fan noise and provides quiet, soothing heat
  • Easy integration—low temperature supply and return water makes the unit compatible with existing radiant and underfloor systems

Reliable Performance

  • Durable cabinet—heavy-gauge steel cabinet and baked-on paint finish
  • Compact and versatile—allows easy installation in a basement, closet or alcove enclosure, and can be fueled by natural or LP* gas

*Shipped as natural gas; field convertible to LP.

Brand Lennox
Catalog Number 57L72
Model/Part Number GWB9-075IH-3
Minimum Order Quantity 0.0
Base Unit of Measure Unit(S)
Product Depth 17.25 IN
Product Height 36.25 IN
Product Width 28.125 IN
Fuel Gas
Heating Type 1 stage
Input 1 kBTU 75
Gross Weight 235 LB
Length 21 IN
Family GWB9-IH
Efficiency 90.0 AFUE
Series Dave Lennox Signature Collection

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