Carrier 59MN7 Review (Infinity Greenspeed 98 Cost Guide)

Square Footage	Furnace BTU
1,000-1,200 sq. ft. Home	40,000 - 60,000 BTU
1,200-1,500 sq. ft. Home	60,000 BTU
1,500-1,800 sq. ft. Home	60,000 - 80,000 BTU
1,800-2,500 sq. ft. Home	80,000 - 100,000 BTU
2,500-3,500 sq. ft. Home	100,000 to 120,000 BTU

🔥Carrier 59MN7 Review (Infinity Greenspeed 98 Cost Guide)

The Carrier Infinity® Greenspeed® 98 – 59MN7 is Carrier’s most advanced and efficient gas furnace. With up to 98.5% AFUE efficiency, full modulating operation, and exclusive Greenspeed® Intelligence, it delivers precision comfort and maximum energy savings.

If you’re researching the Carrier 59MN7 price, installation cost, and performance, this guide covers everything you need before investing in this premium furnace.

🔹Quick Overview: Carrier Infinity Greenspeed 98 – 59MN7

Feature	Details
AFUE Efficiency	Up to 98.5%
Heating Type	Modulating (40%–100%)
Blower Motor	Variable-Speed ECM
ENERGY STAR®	Yes
Smart Control	Infinity System Control
Average Installed Cost	$7,500 – $8,100

🔸How Much Does the Carrier 59MN7 Cost Installed?

Carrier 59MN7 Price

Unit Cost Only: $5,000 – $6,000
Installed Cost: $7,500 – $8,100

Installation cost varies depending on:

Home size
Ductwork modifications
Thermostat upgrades (Infinity Control required)
Zoning systems
Regional labor rates

The 59MN7 sits at the top of Carrier’s pricing tier due to its advanced modulation technology.

🛠️ Design & Performance Features

Fully Modulating Gas Valve

Adjusts heating output between 40% and 100% capacity in 1% increments for ultra-precise comfort.

Secondary Heat Exchanger

Maximizes heat extraction and reduces fuel waste.

Heavy-Gauge Insulated Cabinet

Enhances durability while minimizing vibration and sound.

Multi-Zone Compatibility

Supports both single-zone and multi-zone Infinity Systems.

⚙️ Core Performance & Efficiency

Up to 98.5% AFUE Efficiency

One of the highest efficiency ratings available in residential furnaces.

Greenspeed® Intelligence

Automatically fine-tunes output to match your home’s heating demands in real time.

Variable-Speed ECM Blower

Maintains consistent airflow, improves humidity control, and operates quietly.

Infinity System Control Compatibility

Communicating technology enables advanced diagnostics, precision temperature control, and system optimization.

Hybrid Heat® Compatible

Can integrate with a heat pump for dual-fuel energy savings.

🔇 Noise & Quiet Operation

The Infinity 98 is among the quietest furnaces in its class.

Continuous Low-Speed Operation

Runs at lower capacity most of the time, reducing sudden airflow noise.

Fully Insulated Cabinet

Minimizes sound transmission.

Variable-Speed Blower

Prevents abrupt temperature and airflow changes.

Compared to single-stage furnaces, the 59MN7 delivers significantly quieter operation.

🛡️ Design, Protection & Serviceability

Hot Surface Ignition

Provides reliable startup without fuel waste.

Smart Diagnostics

Infinity System Control displays system alerts and diagnostic codes.

Corrosion-Resistant Heat Exchanger

Built for long-term durability.

Warranty Coverage

Lifetime limited heat exchanger warranty
10-year limited parts warranty (with registration)

Registration within 90 days ensures full warranty protection.

🌟 Key Benefits of the Carrier 59MN7

Highest efficiency in Carrier’s lineup
Precision temperature control
Ultra-quiet performance
Maximum humidity management
Premium smart communicating technology
Potential eligibility for rebates

➕Pros and Cons of the Carrier 59MN7

Pros

✔ 98.5% AFUE efficiency
✔ Fully modulating heating
✔ Greenspeed® Intelligence
✔ Premium comfort control
✔ Very quiet operation

Cons

✖ Highest upfront cost
✖ Requires Infinity Control for full functionality
✖ Installation complexity may increase cost

👤 Who Is the Carrier 59MN7 Best For?

Large homes
Extremely cold climates
Homeowners prioritizing maximum efficiency
Buyers wanting premium smart comfort systems
Long-term homeowners seeking maximum energy savings

🔍Comparable Carrier Models

1. Model Comparison by Price : Infinity 98 – 59MN7 vs. Performance 96 – 59TP6

Feature	59MN7	59TP6
AFUE	Up to 98.5%	96.5%
Heating	Modulating	Two-Stage
Blower	Variable-Speed	Variable-Speed
Installed Cost	$7,500–$8,100	$5,000–$5,600

As Carrier’s flagship model, the Infinity 98 commands the highest price. By contrast, the Performance 96 – 59TP6 is more affordable, typically ranging from $5,000 to $5,600 installed.

While you’ll sacrifice some efficiency and performance, the Performance 96 still offers impressive features — including a two-stage burner, variable-speed blower motor, secondary heat exchanger, and 96.5% AFUE rating.

For many homeowners, the Performance 96 provides a strong balance of value, comfort, and efficiency at a lower cost.

Verdict: The 59TP6 offers strong comfort at a lower price, but the 59MN7 delivers superior efficiency and precision control.

2. Model Comparison by Features : Infinity 98 – 59MN7 vs. Comfort 92 – 59SC2

Feature	59MN7	59SC2
AFUE	98.5%	92.1%
Heating	Modulating	Single-Stage
ENERGY STAR®	Yes	No
Installed Cost	$7,500+	$3,800–$4,800

The Infinity 98 sits at the top of Carrier’s lineup, while the Comfort 92 – 59SC2 represents the entry-level option. The Comfort 92 is a single-stage furnace with a multi-speed blower and 92.1% AFUE.

However, it lacks compatibility with Carrier’s advanced technologies and doesn’t meet Canada’s minimum 95% efficiency requirement, making it unsuitable for most modern homes. It offers less comfort, higher operating costs, and reduced humidity control compared to the Infinity 98.

Verdict: The Infinity 98 vastly outperforms the Comfort 92 in efficiency, comfort, and long-term savings.

3. Model Comparison by Tier : Infinity 98 – 59MN7 vs. Infinity 96 – 59TN6

Feature	59MN7	59TN6
AFUE	Up to 98.5%	96.7%
Heating	Modulating	Two-Stage
Smart Tech	Greenspeed®	Infinity Control
Installed Cost	$7,500–$8,100	$6,000–$6,600

The Infinity 96 – 59TN6 is another premium option, though not as advanced as the Infinity 98. It features a two-stage burner instead of a modulating one and delivers a slightly lower 96.7% AFUE.

While energy savings will be similar, the Infinity 96 lacks Greenspeed Intelligence, which gives the Infinity 98 a clear edge in comfort precision and efficiency optimization.

⭐Is the Carrier 59MN7 Worth It?

If you want:

Maximum efficiency
Ultra-precise comfort
Quiet operation
Long-term energy savings

The 59MN7 is Carrier’s best furnace investment. While expensive upfront, it delivers top-tier performance and potentially lower lifetime operating costs.

🏆Final Verdict: Carrier 59MN7 Review

The Carrier Infinity® Greenspeed® 98 – 59MN7 is the pinnacle of Carrier’s furnace technology. With 98.5% AFUE, full modulation, and Greenspeed® Intelligence, it offers unmatched precision, comfort, and efficiency.

For homeowners seeking the absolute best performance — and willing to invest in premium technology — the 59MN7 stands as one of the strongest high-efficiency furnaces on the market.