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GMVC8

  • 80% AFUE Performance
  • ComfortBridge™ Technology
  • Two Stage, Variable Speed
LIB-80-UPFLW-CB
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*Complete warranty details available from your local dealer/contractor or at www.libertyhvac.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 and some of the additional requirements are 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.

Product Features+

  • Aluminized-steel dual-diameter tubular heat exchanger
  • Integrated communicating ComfortBridge™ Technology
  • Efficient and quiet variable-speed circulator motor
  • Durable 110-volt silicon nitride igniter
  • Electronic control board

Outstanding Limited Warranty Protection+

This gas furnace is covered by what we believe to be the best warranties in the indoor home comfort industry. If the heat exchanger ever fails to the original, registered, homeowner we will provide a new furnace. This furnace also has a 10-Year Parts Limited Warranty* on all functional parts.


If you want we consider the best 80% AFUE gas furnace that the Liberty™ brand offers, but don’t need the efficiency provided by a 90% furnace, install this furnace and enjoy the energy and money savings year after year. 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.