Homeowner’s Guide to Carrier’s Best Furnaces
Shopping for a new heating system can feel complex and technical, especially during the frigid winter months. Every home is unique, and so is every budget.
So, are Carrier furnaces any good? Yes. Carrier systems consistently lead the industry in comfort, energy efficiency, and premium features. As a trusted leader with a proven history of innovation, Carrier engineers heating solutions that keep people safe, comfortable, and in control of their home climate.
This furnace buying guide will showcase the best models—reaching up to 98.5% AFUE—so you can easily identify the exact system best suited for your home's footprint and heating needs. Explore Carrier’s full line of furnaces to find your perfect match.
Carrier Series: Infinity®, Performance™ and Comfort™
Carrier gas furnaces are organized into three distinct series, helping you easily compare models when buying a new furnace: Infinity®, Performance™, and Comfort™. From sophisticated climate control to budget-friendly replacements, Carrier offers high-efficiency AFUE ratings across all three series.
- Infinity® Series: Our most advanced series, offering our highest levels of performance and energy efficiency. Select models feature modulating technology for the ultimate in precise, adaptable temperature control and energy savings.
- Performance™ Series: This series delivers dependable performance and enhanced savings, with select models using smart 2-stage heating technology.
- Comfort™ Series: An economical, reliable choice for budget-driven replacements, with high-efficiency options available that deliver consistent performance without the premium price tag.
Series | Energy Savings | Gas Valve/Blower Type | Best For |
Infinity® | Up to 98.5% AFUE | Modulating, Two-Stage or Single-Stage / Variable-Speed | Highest comfort & innovative features for more precise control |
Performance™ | Up to 97% AFUE | Two-Stage or Single-Stage / Variable 25-speed | Reliability & smart features |
Comfort™ | Up to 97% AFUE | Single-Stage / Multi 18-speed | Budget-friendly reliability |
Top-Rated Carrier Systems: Choosing the Best Furnace for Your Space
With a range of top-rated systems, Carrier offers specialized performance for every home size, climate, and budget. This allows homeowners to select the best furnace for their specific needs. While Carrier has a deep-rooted legacy in HVAC, we continue to lead by engineering innovative furnace models that excel in efficiency, value, and environmental responsibility.
Best Overall Performance: Infinity® 98 Gas Furnace (Model 59MN7)
The Infinity 98 Gas Furnace(Model 59MN7) is the pinnacle of energy efficiency within the Carrier lineup, achieving up to 98.5% AFUE. Its modulating gas valve adjusts in tiny 1% increments to adapt precisely to your home's real-time heating needs.
- Who It’s Best For: Homeowners who prioritize premium energy savings and the highest level of consistent indoor comfort.
- Why Buy: It offers the best balance of advanced Greenspeed® Intelligence and incredibly quiet operation.
Best Smart Technology Balance: Performance™ 97 Gas Furnace (Model 59TP7)
The Performance 97 Gas Furnace (Model 59TP7) is a dependable, mid-tier workhorse that uses 2-stage technology to perfectly balance upfront furnace costs and long-term performance.
- Who It’s Best For: Homeowners seeking enhanced energy efficient savings without the full premium price tag of the Infinity line.
- Why Buy: It provides smarter service capabilities via InteliSense™ Technology, which connects to your ecobee for Carrier smart thermostat to improve long-term maintenance and diagnostics.
Best for Environmentally-Conscious in Homes: Comfort™ 95 Ultra-Low NOx (Model 59SU5)
Among the different types of furnaces available, the Comfort™ 95 Ultra-Low NOx (Model 59SU5) is specifically engineered to dramatically reduce nitrogen oxide emissions while maintaining an impressive and energy efficient rating up to 95% AFUE.
- Who It’s Best For: Homeowners in regions with strict indoor air quality and environmental regulations who want premium quality without high emissions.
- Region/Home Match: Homes in Colorado and select regions of California (such as the South Coast Air Quality Management District) that require reliable, emission-compliant gas heating.
- Why Buy: It delivers robust, efficient comfort while meeting the most stringent environmental standards.
Best for Budget-Conscious Buyers: Comfort™ 96 Gas Furnace (Model 59SC6)
The Comfort™ 96 Gas Furnace (Model 59SC6) is an excellent choice for anyone buying a new furnace on a budget without sacrificing the renowned reliability of top furnace brands. It utilizes a single-stage gas valve focused on simplicity, durability, and consistent warmth.
- Who It’s Best For: Homeowners or landlords seeking high-quality, standard comfort without a massive upfront investment.
- Why Buy: It is the most economical way to achieve up to a 97% AFUE efficiency rating, helping to lower your monthly energy bill.
Essential Furnace Terminology
Ready to talk furnaces? Understanding the language of heating systems makes buying the right one simple. Here are the key terms you need to know:
- AFUE (Annual Fuel Utilization Efficiency): Think of this as the gas mileage for your furnace. It measures the percentage of fuel converted into usable heat annually. A higher AFUE rating means greater efficiency and lower energy bills. The fuel source itself is also a major consideration, which you can explore further in our electric vs. gas vs. oil furnace comparison.
- Gas Valve Types: This controls how your furnace produces heat. Single-stage units offer simple on/off operation. Two-stage units have high and low settings for improved efficiency. Modulating units adjust in tiny increments for the most precise comfort available.
- Variable-Speed Blower: This is the motor that circulates air. Unlike single-speed blowers, it adjusts airflow to maintain consistent temperatures, reduce noise, and enhance air quality. The difference between modulating vs. variable speed is that one controls fuel (the gas valve) while the other controls air (the blower). When they work together, you get ultimate performance.
- Greenspeed® Intelligence: Exclusive to Carrier, this is the pinnacle of HVAC innovation. It pairs adaptable-speed technology with smart controls to achieve unparalleled energy efficiency and precise comfort management.
Next Steps: Professional Sizing and Installation
To ensure your heating system operates flawlessly, a professional must perform a Manual J load calculation to determine the exact capacity needed for your home. Even the best Carrier unit can underperform if installed incorrectly. For milder climates, an expert might recommend a hybrid system, combining a heat pump and a furnace for optimal efficiency. Understanding the nuances of an electric heat pump vs. furnace is key to making the right choice.
To ensure your system is perfectly sized, start with a professional evaluation. Find a local Carrier expert today to schedule a home comfort assessment, calculate your installation cost, and receive a personalized quote.
Frequently Asked Questions
Yes, Carrier furnaces are highly regarded for their longevity, advanced Greenspeed® technology, and high AFUE ratings. They offer reliable performance that can significantly reduce long-term energy costs.
A single-stage furnace only runs at one speed (full capacity), while a modulating furnace adjusts its heating output in tiny increments. Modulating furnaces provide much more precise temperature control and operate more quietly.
Furnace size is determined by a Manual J load calculation, which looks at your home's square footage, insulation, window types, and local climate. You should always have a certified HVAC professional perform this calculation prior to installation.
About The Author: Ryan Mayes is a Senior Digital Brand Marketing Manager at Carrier who focuses on creating clear, helpful resources on HVAC topics. Ryan’s goal is to guide readers toward smart, confident decisions about their indoor comfort.