80% AFUE GMVS80-U

  • Single-Stage Variable-Speed ECM Gas Furnace
  • Ultra Low NOx
  • 80% AFUE
Consumer Brochure Product Specifications
FKN-80-upflw-CB
Lifetime Heat Exchanger Limited Warranty* 10 Yr Unit Replacement Limited Warranty* 10 Yr Parts Limited Warranty

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

** For installation in California’s South Coast Air Quality Management District (SCAQMD) only: This furnace meets the SCAQMD Rule 1111 14 ng/J NOx emission limit. This furnace is for the SCAQMD Clean Air Furnace Rebate Program: www.CleanAirFurnaceRebate.com.

Product Features+

  • Integrated communicating ComfortBridge™ technology
  • Commissioning and diagnostics via indoor board Bluetooth with the CoolCloud™ phone and tablet application
  • Heavy-duty stainless-steel dual diameter heat exchanger
  • Single-stage gas valve
  • Durable hot-surface igniter

Outstanding Limited Warranty Protection+

If the heat exchanger ever fails in this unit, the original registered owner will receive a new heat exchanger. This unit is also backed by a 10-Year Unit Replacement Limited Warranty* and a 10-Year Parts Limited Warranty*. For a full description of all warranties applicable to this product, please review the consumer brochure and warranty certificate by clicking on the specified links.


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.

Warranty Certificate