Infinity 80% Gas Furnaces Consumer Brochure
The furnace operates at 80% AFUE, helping to keep operating costs moderate while keeping you warm during winter.
Infinity® 80 Gas Furnace
58TN
Reliable efficiency and enhanced comfort for year-round home heating.
Overview
The Infinity 80 Gas Furnace is a reliable solution offering 80% AFUE. This system 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 (298)
Verified purchase
Basic variable speed furnace
November 11, 2025
Like the two stages combustion and the variable speed blower
Neutral
November 10, 2025
Neutral
Verified purchase
Replaced an old Carrier gas furnace with newer model not as happy
November 4, 2025
I replaced a 13 year old broken Carrier furnace with this newer model same efficiency rating. This new one is much noisier than my old one and sometimes wakes me up when it starts up. The company that installed it claims it is operating as designed. The warranty period is also much shorter than I had before. I am not happy about the noise level and I don’t know if this will last as long as old one.
Verified purchase
Infinity 80 Gas Furnace
October 18, 2025
I just wish I had more training on how to work the control panel.
Verified purchase
Furnace
September 30, 2025
So far so good
Verified purchase
Heater is as good as the previous model
September 26, 2025
So far so good. The thermostat that goes with it is awful.
Documents
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).