Quality Heating & Air Services, Inc

Base™ 90 Gas Furnace

Models: 58MCB

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).

Ratings
Energy Efficiency
Quiet Level
Durability

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 registered¹

Model: 58MCB

58MCB

Performance
Efficiency	Up to 92% AFUE
Limited Warranty	10-year parts limited warranty when properly registered; Lifetime limited warranty on heat exchanger¹
ENERGY STAR®
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
Controls Supported	Thermostat
Diagnostics	On Board
Technology
Capacity	40,000 - 138,000 BTUH
Blower Motor	Single speed
Primary Heat Exchanger	Serpentuff™ polypropylene-coated
Fuel	Natural Gas; convertible to liquid propane (LP)
Aesthetics
Profile	Multipoise design
Construction	Galvanized steel
Paint	Baked on urethane base coat and polyester top coat

Models starting with: 58MC

Warranty Card

Limited Warranty for Condensing Gas Furnace with Clamshell Secondary Heat Exchanger
Date Modified: 7/2/11

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.