Base 90 Gas Furnace

Base™ 90 Gas Furnace

High Efficiency and Unmatched Expertise

The Base 90 gas furnace is designed for reliable heating and long-lasting durability, featuring up to 92% Annualized Fuel Utilization Efficiency (AFUE).


    • Energy efficient, up to 92% AFUE
    • Pilot-free PowerHeat™ ignition
    • Sealed, low-noise combustion system
    • Propane convertible
    • Serpentuff™ secondary heat exchanger for long life
    • 10-year parts limited warranty when properly registered
  • Performance
    Efficiency Up to 92% AFUE
    Limited Warranty 10-year parts limited warranty when properly registered; Lifetime limited warranty on heat exchanger. To the original owner, the Carrier Base™ 90 Gas Furnace is covered by a 10-year parts and lifetime heat exchanger limited warranty upon timely registration of your new equipment. The secondary heat exchanger carries a 20-year labor limited warranty. Ask your Carrier dealer about optional extended warranties, which may include labor. Warranty period is a 5-year on parts and 20-year on heat exchangers if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will automatically receive a 10-year parts limited warranty and a lifetime parts limited warranty on the heat exchangers. See warranty certificate at carrier.com for complete details.
    Details As an ENERGY STAR partner, Carrier Corporation has determined that the Base™ 90 gas furnace meets the ENERGY STAR guidelines for energy efficiency.
    Controls Supported Thermostat
    Diagnostics On Board
    Capacity 40,000 - 138,000 BTUH
    Blower Motor Single speed
    Primary Heat Exchanger Serpentuff™ polypropylene-coated
    Fuel Natural Gas; convertible to liquid propane (LP)
    Profile Multipoise design
    Construction Galvanized steel
    Paint Baked on urethane base coat and polyester top coat