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GWB9-IH Boiler

High-efficiency, gas-fired water boiler

Features

Overview

    Here are some of the top features of the GWB9-IH:

    Efficiency rating of 90% AFUE.

    ENERGY STAR® qualified which means it meets or exceeds U.S. federal guidelines for energy efficiency.

    Cast-aluminum heat exchanger transfers heat up to three times faster than traditional cast-iron exchangers.

    Easy integration with traditional radiator systems to provide precise heating comfort, regardless of outdoor temperatures.

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

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

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
  • 15-year limited warranty on heat exchanger
  • 10-year limited warranty on remaining covered components

Publications

Lennox GWB9-IH Boiler

Certifications