Carrier® Product Categories » Furnaces for Split Systems » Gas Furnaces

Base™ 90 Gas Furnace
Models: 58MCB

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

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Key Features  
  • Serpentuff secondary heat exchanger for long life
  • 10-year parts limited warranty when properly registered 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.
  • Propane convertible
  • Sealed, low-noise combustion system
  • Pilot-free PowerHeat™ ignition
  • Energy efficient, up to 92% AFUE
Product Specs Model: 58MCB
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