How efficient is the Carrier Infinity 98 (59MN7)?

The Carrier Infinity 98 (59MN7) operates at 98.5% AFUE (Annual Fuel Utilization Efficiency), meaning 98.5% of the fuel it consumes is converted directly into heat for your home. This is considered a high-efficiency furnace that can qualify for energy rebates.

How much does the Carrier Infinity 98 (59MN7) cost to install?

The Carrier Infinity 98 (59MN7) typically costs $6,500 - $8,500 for a complete installation in Nassau County, NY. This includes the furnace unit, professional installation by NATE-certified technicians, permits, and a standard warranty. Actual costs may vary based on your home's specific requirements, ductwork condition, and any necessary modifications.

Is the Carrier Infinity 98 (59MN7) worth it?

Yes, the Carrier Infinity 98 (59MN7) is our top pick from Carrier and offers excellent value for its tier. With 98.5% AFUE efficiency, you can expect to save approximately $225 annually compared to an 80% efficient furnace. Key features like Greenspeed Intelligence and Variable-speed modulating make it a compelling choice. It's particularly well-suited for large homes seeking maximum efficiency and comfort.

What is the warranty on the Carrier Infinity 98 (59MN7)?

Carrier provides parts warranty coverage. For the best warranty protection, we recommend registering your furnace within 60 days of installation. Our installations include a workmanship guarantee on top of the manufacturer warranty.

How long does the Carrier Infinity 98 (59MN7) last?

With proper maintenance, the Carrier Infinity 98 (59MN7) should last 15-20 years or more. Premium-tier furnaces like this one often exceed these expectations due to higher-quality components. We recommend annual tune-ups to maximize lifespan and maintain peak efficiency. The extended heat exchanger warranty reflects Carrier's confidence in the unit's durability.

Is the Carrier Infinity 98 (59MN7) quiet?

The Carrier Infinity 98 (59MN7) operates at 40 dB, which is extremely quiet - comparable to a library. The modulating operation allows the furnace to run at lower, quieter speeds most of the time.

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Flagship Model

Top Pick

Carrier Infinity 98 (59MN7)

Model Number: 59MN7

View on Carrier Website

Variable-speed modulating furnace with Greenspeed Intelligence for ultra-quiet operation and precise temperature control

98.5% AFUE

Modulating

40 dB

Get Free Quote (516) 345-3911

Technical Specifications

Efficiency (AFUE)98.5%

Heating StagesModulating

BTU Output Range40k - 120k BTU

Blower MotorVariable-Speed ECM

Sound Rating40 dB

Smart ThermostatStandard

Fuel TypeNatural Gas

Installed Price$6,500 - $8,500

*Prices include equipment, installation, and standard warranty. Actual cost may vary.

Estimated Annual Savings

Compared to an 80% efficient furnace

$225

per year

$3375

over 15 years

Calculate for Your Home

Ideal For

Large homes seeking maximum efficiency and comfort

Expert Review: Carrier Infinity 98 (59MN7)

The Carrier Infinity 98 represents the pinnacle of gas furnace technology, delivering 98.5% AFUE efficiency through its advanced Greenspeed Intelligence modulating system. This flagship model adjusts heating output in precise 1% increments, eliminating the temperature swings common with single-stage units.

In Nassau County's established neighborhoods like Garden City and Manhasset, the Infinity 98's whisper-quiet operation (as low as 44 decibels) makes it ideal for homes with mechanical closets near living spaces. The variable-speed blower provides exceptional air filtration when paired with Infinity air purifiers.

Local parts availability is excellent through F.W. Webb in Hicksville and authorized Carrier distributors. The 10-year parts warranty and lifetime heat exchanger coverage provide long-term peace of mind. At 98.5% AFUE, this unit qualifies for the maximum PSEG Long Island rebates and may be eligible for federal energy tax credits.

Best for: Homeowners seeking the ultimate in efficiency and comfort, willing to invest in premium technology for maximum energy savings and precise temperature control.

Key Features & Technology

Greenspeed Intelligence

Variable-speed modulating

Ultra-quiet 40 dB operation

WiFi-enabled diagnostics

Warranty & Protection

Parts Warranty

10 Years

Heat Exchanger

Lifetime

Our Guarantee

100% Satisfaction

All warranties require product registration within 60 days of installation. Our team handles registration for you as part of our comprehensive installation service.

Professional Installation

What is Included

Complete furnace unit and materials
Professional NATE-certified installation
Permits and inspections
Old furnace removal and disposal
System testing and calibration
Warranty registration

Installation Timeline

Free Consultation

Same-day or next-day

Installation Day

Typically 4-8 hours

Final Inspection

Ensure perfect operation

Frequently Asked Questions

About Carrier

Carrier

Ranked #5 Overall

Established furnace brand with broad parts availability — preferred when matching existing Carrier equipment

AFUE Range80-98.5%

Founded1915

View All Carrier Models

Get Your Free Quote

NATE-certified technicians serving Nassau County with expert Carrier Infinity 98 (59MN7) installation.

Get Free Quote (516) 345-3911

Available 24/7 for emergencies

Why Home+ Air & Heat?

NATE-certified technicians
Same-day consultations available
Financing options available
100% satisfaction guarantee
Local Nassau County company

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