Carrier Base 92 Gas FurnaceHigh Efficiency and Unmatched Expertise The 58MCB Condensing Gas Furnace is designed to provide a cost-effective alternative in highly-efficient heating. New home buyers will enjoy the features, efficiency, and reliability of the 58MCB. The 58MCB achieves up to 92.1% Annual Fuel Utilization Efficiency (AFUE).
The unit is CSA (AGA and CGA) certified for installation on combustible flooring and in alcoves, basements, closets, attics, crawl spaces, garages, utility rooms, or in manufactured (mobile) homes with approved kit (except for 140-20 size). The unit can be used in conjunction with a split-system product for cooling.
The 58MCB can be installed as a 1-pipe or 2-pipe venting system, except the 140 size which can be installed as 2-pipe system only. All sizes are design certified in Canada.
Standard Features | Limited Warranty | Specifications

Recognitions and Certifications
Standard Features
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Power Heat™ Hot Surface Igniter
Serpentuff™ polypropylene-laminated condensing Heat Exchanger
4-way multipoise design for upflow, downflow or horizontal installation
Permanent split-capacitor (PSC) multi-speed Blower Motor
Monoport inshot burners with hot surface ignition
Propane convertible
Sealed combustion
Limited Warranty
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20-year limited warranty on heat exchanger
10-year parts warranty for 90 day registered original purchaser otherwise 5 years
20-year labor allowance on secondary heat exchanger
Specifications
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Model No. | Dimensions (IN.) D X W X H | Rated Heating Output (BTUH) |
58MCB040---1--08 | 40.5 x 28.6 x 17.5 | 37000 |
58MCB040---1--12 | 40.5 x 28.6 x 17.5 | 37000 |
58MCB060---1--08 | 40.5 x 28.6 x 17.5 | 56000 |
58MCB060---1--12 | 40.5 x 28.6 x 17.5 | 56000 |
58MCB060---1--16 | 40.5 x 28.6 x 17.5 | 56000 |
58MCB080---1--12 | 40.5 x 28.6 x 17.5 | 74000 |
58MCB080---1--16 | 40.5 x 28.6 x 17.5 | 74000 |
58MCB080---1--20 | 40.5 x 28.6 x 21 | 74000 |
58MCB100---1--16 | 40.5 x 28.6 x 21 | 93000 |
58MCB100---1--20 | 40.5 x 28.6 x 21 | 93000 |
58MCB120---1--20 | 40.5 x 28.6 x 24.5 | 112000 |
58MCB140---1--20 | 40.5 x 28.6 x 24.5 | 127000 |
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