Infinity® 80 Gas Furnace
58TN
Reliable efficiency and enhanced comfort for year-round home heating.
The Infinity 80 Gas Furnace is a reliable solution offering 80% AFUE. This furnace features two-stage gas valve technology, smart fan control, and Comfort Heat Technology®, ensuring consistent warmth and quieter operation. Paired with Carrier’s Ideal Humidity System™, it elevates home comfort by managing both temperatures and moisture levels more precisely. Designed with Carrier’s proven craftsmanship, this furnace ensures dependable comfort and satisfaction for years to come.
Features
Smart features such as Comfort Heat Technology continuously adapt to keep temperatures steady while reducing airflow interruptions, offering premium home comfort.
The Ideal Humidity System™ works seamlessly with compatible Carrier equipment to regulate indoor humidity levels, enhancing comfort throughout the year.
A fully insulated cabinet minimizes operational noise, creating quieter and more peaceful indoor spaces.
Experience peace of mind with Carrier's Consumer Choice Warranty. Upon timely registration, on eligible equipment select either a 10-year parts only limited warranty or a 5-year parts, plus a 3-year labor limited warranty.¹ Lifetime heat exchanger limited warranty upon timely registration.²
At a glance
Heating Efficiency
80% AFUEGas Valve Technology
Two-stageBlower Motor Type
Variable-speedFuel Type
Natural gas (optional propane conversion kit available)Size
Available in various sizes to accommodate most homesEnjoy comfort, smart features, and reliability with the Infinity 80 Gas Furnace.
Works great with
Customer Reviews
4.5 /5
4.5 rating of Reviews (328)
Great Product
March 5, 2026
Great Product!!!
Great heater
February 21, 2026
Worked well all winter, heat is very comfortable (and quiet).
even heat
February 17, 2026
Always comfortable
Excellent Furnace
February 12, 2026
I am extremely pleased with this furnace. My house is comfortably warm at every level. There is minimal noise when it turns on and is running.
Great Product
January 26, 2026
It's a great product, if only near lightning strikes wouldn't blow out the motherboard.
New gas furnace
January 17, 2026
Technician unable to connect Aprilaire humidifier to engage only when furnace blower motor starts
Documents
Brochure
Infinity 80% Gas Furnaces Consumer Brochure
Carrier Gas Furnace Comparison Flyer
Owner's Manual
80%, Induced Combustion, Gas Furnace, Owner's Manual
Warranty Card
Carrier Limited Warranty for Non-Condensing Gas Furnace
California residents please see Proposition 65
Legal disclaimer
1. To the original owner on eligible equipment for eligible residential applications. Warranty period is 5 years if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will automatically receive a 10-year parts limited warranty, which can be changed to the 5-year parts, plus a 3-year labor option on eligible equipment within the first 90 days after installation. The 5-year parts, plus 3-year labor warranty option is available only if the installing dealer/contractor has elected to participate in the Consumer Choice warranty program and has accepted the Consumer Choice dealer terms and conditions.
2. To the original owner on eligible equipment for eligible residential applications. Lifetime heat exchanger parts limited warranty period is 20 years if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will automatically receive a lifetime heat exchanger parts limited warranty. See warranty certificate for details.
This furnace does not comply with SCAQMD Rule 1111 or SJVAPCD Rule 4905, which places a NOx emission limit of 14 ng/J. Therefore, this unit is not eligible to be installed in the South Coast Air Quality Management District (SCAQMD) nor the San Joaquin Valley Air Pollution Control District (SJVAPCD).