Carrier Infinity® 98 Gas Furnace With Greenspeed® Intelligence– 59MN7

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Carrier Infinity® 98 Gas Furnace With Greenspeed® Intelligence– 59MN7

ENERGY STAR® certified. Our highest efficiency and most advanced furnace with up to 98.5% AFUE for premium energy savings with excellent humidity control and premium comfort

The Infinity® 98 furnace delivers precision comfort with Greenspeed intelligence. This is the most advanced Carrier® furnace ever made. Its unique design innovations achieve unprecedented efficiency and quiet.

Greenspeed intelligence is created by pairing adaptable-speed technology with our Infinity control’s intelligence. The unique, modulating gas valve of this unit, when managed by the Infinity control, allows it to literally adapt its output to the needs of the home. With tiny, 1% adjustments between 40 and 100% capacity, it gives the home only the amount of heating necessary.

This allows the furnace to operate longer at steadier, lower capacities, which ensures incredible energy efficiency and quiet operation with tighter temperature control than standard furnaces.

Variable-speed blower operation is a part of the Greenspeed equation while also enhancing other system components. It’s the outstanding choice for potentially boosting air conditioning system efficiency and improving summer dehumidification.


  • Energy Savings

ENERGY STAR® certified. Up to 96.7% AFUE for premium energy savings.

  • Comfort Features

Enhanced comfort features with high and low stage heating options for improved temperature control and more consistent comfort.

  • Humidity Control

Offers excellent humidity control when paired with an Infinity® air conditioner or heat pump.

  • Sound Performance

Extremely quiet operation with a fully insulated cabinet to help minimize noise levels.

  • Fuel Type

Natural gas. Can be converted to liquid propane by installing an optional propane conversion accessory kit.

  • Size

Available in various sizes that can accommodate most homes. Your Carrier expert will recommend the appropriate model to fit your needs.

  • Warranty

10-year parts limited warranty upon timely registration and lifetime heat exchanger limited warranty upon timely registration.1

1To the original owner, when product is used in an owner-occupied residence, a 10-year parts limited warranty and lifetime heat exchanger parts limited warranty upon timely registration of your new equipment. Parts limited warranty period is 5 years and heat exchanger warranty is reduced to 20-years if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will receive the extended registered parts limited warranty and heat exchanger parts limited warranty period. See warranty certificate for details.