80% AFUE GDS8

  • Up to 80% AFUE performance
  • Down-flow installation
  • Single-stage, multi-speed
GDS8 Gas Furnace
Lifetime Heat Exchanger Limited Warranty* 10 Yr Parts Limited Warranty*

*Complete warranty details available from your local dealer or at franklinhvacsystems.com. To receive the Lifetime Heat Exchanger Limited Warranty (good for as long as you own your home) and 10-Year Parts Limited Warranty, online registration must be completed within 60 days of installation. Online registration is not required in California or Quebec. The duration of warranty coverage in Texas and Florida differs in some cases.

Product Features+

  • Aluminized-steel dual-diameter tubular heat exchanger
  • Durable hot surface mini-igniter
  • Energy-saving, quiet four-speed circulator blower motor
  • Electronic control board with self-diagnostics

Outstanding Limited Warranty Protection+

If the heat exchanger ever fails in this unit, the original registered owner will receive a new heat exchanger. This furnace also has a 10-Year Parts Limited Warranty on all other functional parts. For a full description of all warranties applicable to this product, please review the consumer brochure or product warranty by clicking on the links below.


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.

Energy Consumption

Before purchasing this appliance, read important information about its estimated annual energy consumption, yearly operating cost, or energy efficiency rating that is available from your retailer.