GMH/GDH8 Distinctions™

TwinComfort (Convertible) Gas Furnace
80% AFUE
Two-stage, Multi-Speed

Outstanding Warranty Protection

This furnace is covered by one of the best warranties in the indoor home comfort industry. In addition to covering the heat exchanger with a Lifetime Limited Warranty to the original, registered homeowner, if the heat exchanger fails during the first 10 years of ownership, we will replace the entire unit. This furnace also has a 10-Year Warranty on all other functional parts. Online registration required within 60 days of installation. For a full description of all warranties applicable to this product, please review the product brochure or click on the warranty link.

Product Features

• Patented TuffTube™ Dual-Diameter Tubular Heat Exchanger
• Silicon Nitride Igniter with patented Adaptive Learning control
• Energy-Saving , Quiet Four-Speed Direct-Drive Circulator Motor
• Electronic Control Board with Self-Diagnostics
• Run-Tested at Factory Prior to Shipment

This gas furnace has an AFUE rating of 80% which means that 80 cents of every $1.00 of heating energy expense warms your home.