A furnace keeps you warm and cozy during colder months and protects your home from winter hazards. It’s an essential home system—and a big investment—so it’s important to choose the right one.

The This Old House Reviews Team has thoroughly researched the heating, air conditioning, and ventilation (HVAC) industry to compile this guide to the best furnace brands. You can also check out our guide to the best air conditioners (AC) for your cooling needs.



Top 7 Furnace Brands




Compare the Best Furnace Brands

Get a quick overview of our top picks for furnaces below:

BrandOur Rating (Out of 100)Energy Efficiency WarrantiesPrice Range
Carrier97.5Up to 98.5% AFUE10-year limited parts warranty$–$$$$
Lennox97.5Up to 99% AFUEVaries according to the product line$–$$$$
Bryant91.5Up to 98.3% AFUE10-year standard parts limited warranty and lifetime heat exchanger limited warranty$$–$$$
Trane90.5Up to 97.3% AFUE20-year heat exchanger warranty, 10-year limited parts warranty, and 10-year labor warranty$$–$$$$
Amana90Up to 97% AFUELimited lifetime heat exchanger warranty and 10-year parts limited warranty$$–$$$$
American Standard89.5Up to 97% AFUE10-year limited parts warranty$$–$$$
Daikin80Up to 98% AFUELifetime heat exchanger limited warranty, 12-year parts limited warranty, and 12-year unit replacement limited warranty $$–$$$



Furnace Glossary

It’s important to understand some essential terms while researching furnaces for your home. Here’s what to know.

  • Annual fuel utilization efficiency (AFUE): This measures a furnace’s heating efficiency. The higher the AFUE, the more efficient the furnace.
  • British thermal unit (BTU): A BTU equals the amount of heat required to raise a pound of water by one degree Fahrenheit. This unit of heat determines how much heating capacity your home needs. The higher the BTU rating, the more powerful it is. Larger homes require furnaces with higher BTUs.
  • ​​Ductwork: This refers to the system of metal or synthetic ducts used to transport heated air throughout your home. Your furnace will be integrated into your home’s ductwork. 
  • Gas furnace: A gas furnace converts natural gas or propane into heat for your home.
  • Oil furnace: An oil furnace converts heating oil into heat for the home.
  • Heat exchanger: A heat exchanger is the part of the furnace that transfers heat to the surrounding air, which is then pumped throughout the home. You can think of it as the backbone of the furnace.
  • Heat pump: A heat pump is a popular home system that has both heating and cooling abilities. It draws heat from the outdoor air and circulates it through a home’s air ducts during cold months. In summer, it removes heat from the house and releases it outside.
  • Packaged system: Similar to a heat pump, a packaged system combines heating and cooling into one system that’s housed outside. These systems come in various configurations, including AC-only or heat pump options.
  • Variable-speed motor: This motor operates at a wide range of speeds to control the distribution of heated air throughout the home. It has become increasingly popular, as it yields better energy efficiency and comfort than one- or two-stage options.




Our take: Best Performance
Our rating: 97.5 out of 100
Energy efficiency: Up to 98.5% AFUE
Warranties: 10-year limited parts warranty
Price range: $–$$$$

Carrier Best Performance


Carrier focuses on high efficiency and performance. It offers furnaces with high AFUE ratings between 80% and 98.5%. Carrier also partners with Energy Star to meet strict energy efficiency requirements set by the Environmental Protection Agency (EPA). This partnership, combined with the company’s low sound ratings and variable-speed blowers, makes Carrier’s furnaces some of the top-performing products available.

Pros and cons

Pros Has high energy efficiency rates of up to 98.5% AFUE Includes a 10-year limited parts warranty for registered products Includes humidity control for many of its furnaces Cons Requires a salesperson to visit your home for accurate cost information Is more expensive than other brands


You’ll have to request an in-home visit for accurate pricing, but customer reviews cite costs between $3,000 and $15,000.

Recommended model

Carrier’s ​​Performance 96 Gas Furnace is an excellent choice for This Old House readers. It offers a good balance between affordability and performance with a variable-speed blower motor that runs in low stages up to 90% of the time. Longer, low-stage run times give you better energy efficiency, better temperature control, and increased comfort.


Our take: Best Energy Efficiency
Our rating: 97.5 out of 10
Energy efficiency: Up to 99% AFUE
Warranties: Varies according to the product line
Price range: $–$$$$

Lennox Best Energy Efficiency


Lennox has an impressive selection of more than 15 furnace models with various product lines. Like Carrier, it partners with Energy Star to provide high-efficiency furnaces. However, it has slightly higher energy efficiency, with some Lennox units reaching 99% AFUE. Lennox also offers some of the quietest oil and gas furnaces with variable blower motors.

Pros and cons

Pros Has the highest AFUE rating on this list Features low sound ratings for its oil furnaces Is available at popular retailers such as The Home Depot Cons Varies warranty options by furnace line Is more expensive than some companies


Installing one of Lennox’s furnaces will cost around $3,100–$10,000.

Recommended model

We recommend Lennox’s EL296V Variable-Speed, Two-Stage Gas Furnace. It’s an excellent middle-ground option, with Energy Star certification and up to 96% AFUE. It includes a five-year limited warranty on covered components or a 10-year limited extended warranty when you register the furnace.


Our take: Best Packaged Systems
Our rating: 91.5 out of 10
Energy efficiency: Up to 98.3% AFUE
Warranties: 10-year standard parts limited warranty and lifetime heat exchanger limited warranty (with registration)
Price range: $$–$$$

Bryant Best for Packaged Systems


Bryant started more than a century ago in 1904. Now, the company offers high-quality gas furnaces with low sound and high AFUE ratings of up to 98.3%. The company aims to offer innovative packaged systems. For example, its Bryant Hybrid Heat system combines a gas furnace and heat pump into one heating and cooling system.

Pros and cons

Pros Produces sturdy furnaces with aluminized steel Offers packaged heating and cooling systems Includes a lifetime heat exchanger limited warranty Cons Warranties are less comprehensive than other brands Doesn’t offer premium or luxury models


A Bryant furnace costs $3,500– $6,000 including installation.

Recommended model

Bryant’s Evolution 96 Variable-Speed 986T Gas Furnace provides up to 96.7% AFUE. It has a cabinet with an external furnace filter that makes it easier to change the filter—a necessary part of furnace maintenance. This product also features a two-stage valve to combat humidity and can integrate with heat pump system combinations for enhanced heating efficiencies.


Our take: Best Warranty
Our rating: 90.5 out of 100
Energy efficiency: Up to 97.3% AFUE
Warranties: 20-year heat exchanger warranty, 10-year limited parts warranty, 10-year labor warranty (with registration)
Price range: $$–$$$$

Trane Best Warranty


Founded in 1913, Trane is an excellent option for a secure investment. It includes a 20-year heat exchanger and 10-year parts and labor warranty, which is more comprehensive than other brands. Additionally, the company’s gas furnaces have a sturdy design with heavy-gauge, two-tone powder-painted cabinets.

Those interested in smart-home features will appreciate Trane’s variable-speed technology, which continuously communicates with other HVAC system parts to ensure efficient performance and energy savings. Trane’s thermostat also optimizes efficiency by providing real-time diagnostics, humidity controls, and automatic temperature adjustments.

Pros and cons

Pros Uses speed blower motors for quieter system startup and shutdown Incorporates smart-home technology for increased efficiency Includes a comprehensive 20-year heat exchanger warranty plus 10 years for other parts and labor Cons Charges a premium for many products Requires a ComfortLink II thermostat on high-end options for proper function


Trane furnaces cost $3,500–$15,600 with professional installation.

Recommended model

Trane’s S9X1 Gas Furnace offers some of the company’s best value. It starts at $5,700 and reaches up to 96% AFUE. It also includes full insulation for quiet performance and a stainless steel primary heat exchanger for increased corrosion-resistance. The furnace comes with Trane’s base limited warranty, registered limited warranty, and optional extended warranties.


Our take: Best Comfort Control
Our rating: 90 out of 100
Energy efficiency: Up to 97% AFUE
Warranties: Limited lifetime warranty on heat exchangers and 10-year parts limited warranty
Price range: $$–$$$$

Amana Best Comfort Control


Amana is owned by Goodman, which is on our list of best AC brands. The company offers quality furnaces with average performance, but its products are backed by a solid warranty. Amana also incorporates features that boost performance and energy efficiency. For example, the company’s ComfortBridge technology uses two-way communication to determine which speed or stage the furnace should run on for optimal efficiency, rather than relying solely on your thermostat.

Pros and cons

Pros Includes a limited lifetime replacement warranty on its heat exchangers Adds features to improve comfort control Has a user-friendly website to search for dealers and find manuals and other resources Cons Has average performance for its pricing Uses communicating technology, which is new and can be difficult to fix if it malfunctions


Amana offers furnaces for $3,600–$11,000, including installation fees.

Recommended model

We recommend Amana’s ACVM97 Modulating Variable-Speed Gas Furnace. It reaches up to 97% AFUE, includes the company’s ComfortBridge technology, and incorporates high-quality components such as a stainless steel, tubular primary heat exchanger and quiet variable-speed circulator motor. In addition, the company claims you can receive up to $1,200 in rebates with this model.

American Standard

Our take: Best Value
Our rating: 89.5 out of 100
Energy efficiency: Up to 97% AFUE
Warranties: 10-year limited warranty
Price range: $$–$$$

American Standard Best Value


American Standard has become a household name in heating since its founding in 1929. The company produces affordable furnaces with 10-year limited warranties. It offers many units, including options for single, two-stage and variable-speed fan motors depending on your budget and desired energy efficiency. The company also offers AccuLink and AccuComfort smart thermostats, which allow you to control your furnace via American Standard’s mobile app. Best of all, the company has competitive pricing.

Pros and cons

Pros Offers smart-home technology Has competitive pricing on quality products Uses a network of certified dealers Cons Requires you to buy a high-end unit to receive compressor coverage Has higher sound levels than other brands


American Standard offers competitive pricing, with furnaces between $3,500 and $10,900 including installation.

Recommended model

American Standard’s Platinum 95 Gas Furnace is durable and efficient. It reaches up to 97.3% AFUE and uses a heavy steel insulated cabinet for quiet performance and sturdy design. This furnace model is compatible with American Standard’s AccuLink Communicating System for easier control and monitoring of your heating system.


Our take: Best Heat Exchangers
Our rating: 80 out of 100
Energy efficiency: Up to 98% AFUE
Warranties: Lifetime heat exchanger limited warranty, 12-year parts limited warranty, and 12- year unit replacement limited warranty (with registration)
Price range: $$–$$$  

Daikin Best Heat Exchangers


Daikin has been crafting high-quality furnaces since the 1930s. You might notice the company’s name when looking into Amana and Goodman HVAC products because Daikin owns these brands. Daikin-brand furnaces are a more premium product, including top-of-the-line designs and components. 

Daikin constructs heat exchangers from tubular stainless steel with wrinkle bend technology. This design helps to combat corrosion and damage from condensation, making it one of the strongest and most durable exchangers on the market. Furthermore, Daikin includes a lifetime warranty on its heat exchangers.

Pros and cons

Pros Crafts high-quality heat exchangers backed by a lifetime warranty Offers a large selection of furnaces with 19 models Uses electronically commutated motors (ECM), which are quieter and more efficient than standard motors Cons Doesn’t offer as many extra features as other brands Repairs can be expensive if not covered by a warranty


Daikin’s furnaces cost $2,500–$11,000 for the unit and installation.

Recommended model

We recommend Daikin’s DM96TN gas furnace. This furnace features an AFUE rating of up to 96% and offers the company’s impressive, heavy-duty, stainless steel tubular heat exchanger. It’s also Energy Star-certified and has a two-stage gas valve for quieter and more economical heating.

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Furnace Installation Costs by Brand

See each furnace brand’s installation cost at a glance below. 

BrandAFUE RatingFurnace PriceInstallation Cost
Carrier Up to 98.5%$1,000–$3,000$3,000–$15,000
LennoxUp to 99% $2,000–$3,000$3,100–$10,000
BryantUp to 98.3%$1,500 –$4,500$3,500– $6,000
TraneUp to 97.3%$2,000–$5,000$3,500–$15,600
AmanaUp to 97%$1,500–$3,000$3,600–$11,000
American StandardUp to 97% $1,500–$3,000$3,500–$10,900
DaikinUp to 98%$2,500–$5,000$2,500–$11,000



Factors To Consider When Choosing a Furnace Brand

Look out for these common factors to ensure you choose a quality furnace brand. 

AFUE Ratings

Annual fuel utilization efficiency (AFUE) ratings measure how much fuel the furnace converts to heat, allowing you to gauge efficiency. A quality furnace has an 80%–99% AFUE rating. We don’t recommend buying a furnace below 80% AFUE. Though furnaces with higher AFUE ratings cost more, spending an extra $300 or $500 for better energy efficiency is worth it for the long-term energy savings.

Brand Compatibility

It’s important to check what company makes your other HVAC components. HVAC brands often design their products to be compatible with only their brand or brands owned by the same parent company. Knowing the brand of your AC unit and thermostat will help you narrow down your options. 


Pay attention to the furnace’s components and their quality. High-quality components require less maintenance, saving you money on routine HVAC service. Most brands offer different tiers of heating units that fit various budgets and home heating needs. Look out for parts that use stainless steel and variable-speed technology as good markers of high quality. 

Additional components such as an air pressure switch, variable-speed motor, air filtration system, and electronic ignition help with performance and maintenance. These advanced features can reduce noise, trap dust particles, and increase efficiency. Furnaces may also have smart-home features that improve efficiency by automatically adjusting the output to the exact amount of air needed. 

You may be able to add these components as upgrades to a standard model, but we suggest finding a unit that already includes them. Ask an HVAC technician about what upgrades are possible with the furnace model you’re interested in. 


Furnace motors, also known as blower motors, make the whole system run. These motors are usually connected to the blower in some capacity.

Standard furnaces have a direct drive motor that connects with the furnace’s blower wheel to circulate air through the furnace system. However, many companies now offer variable-speed motors. Unlike conventional furnace motors, a variable-speed blower motor runs at different speeds to precisely control the heat flow. This results in better airflow control and a better balance of temperature and humidity. As an added bonus, a variable-speed motor slowly ramps up to full speed, reducing noise while increasing energy efficiency. 

We recommend looking for furnaces that incorporate variable-speed motors. 

Packaged Systems

Packaged systems are a great way to cut costs on an entire HVAC system. HVAC companies tend to manufacture both heating and cooling units, so you might be able to purchase both unit types at a reduced price if you go through the same brand for both. For example, Bryant offers its furnaces with cooling units, such as AC units, at reduced prices. If you need an entire HVAC system replacement, we suggest you look for a company that offers packaged systems. 


Review the length of each brand’s warranties and what parts or components are covered. A 10-year limited parts warranty is standard, but check and see if the brand offers additional labor warranties or unit replacement warranties. 

For example, Trane includes a 10-year labor warranty to cover the cost of repairs or replacement due to malfunction, and Daikin includes a lifetime warranty on its heat exchangers. These warranties make these brands stand out compared to others offering only a 10-year parts warranty.



How To Determine What Size Furnace You Need

Your home’s square footage and local climate will determine what size furnace you need. Furnace capacities are measured in British Thermal Units (BTUs). HVAC contractors typically allocate about 20 BTUs for each square foot of space. For example, an average 2,000-square-foot home will need between 80,000 and 115,000 BTUs to heat efficiently. 



How To Hire a Pro

Installing a furnace yourself isn’t recommended because it’s complex and dangerous. Hiring a professional ensures a safe, quality furnace replacement. A professional will also include an in-depth price breakdown and a labor warranty to protect your investment.

Many furnace brands use a network of certified installers to offer installation services. Check if the brand you’re interested in offers an authentication and credential process for HVAC installation technicians. 

Once you connect with an HVAC technician, ask the following questions to vet them: 

  • Can I see your proof of insurance, certifications, and licenses?
  • Will you perform all my work, or do you contract out to other technicians? If so, who are they?
  • Where can I contact past customers to hear about their experience?
  • Have you worked with the specific HVAC brand I’m interested in before?



Our Conclusion

The best furnace brand depends on your budget, heating needs, and preferences. Carrier offers some of the best-performing and most reliable furnaces, while Lennox has one of the highest AFUE ratings and best energy efficiency scores. Brands such as Bryant or American Standard may be better if you want a more affordable option.

We recommend that homeowners get at least three quotes from different brands to compare costs, warranties, and additional features.

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FAQ About the Best Furnace Brands



Our Rating Methodology

The This Old House Reviews Team is committed to providing comprehensive and unbiased reviews to our readers. This means earning your trust through transparent reviews and data to support our ratings and recommendations. Our rating system for HVAC providers is on a 100-point system based on seven factors:

  • System cost (20 points): We determine each brand’s average price range for a full-size AC or furnace. Most units cost between $3,100 and $8,500. The lower the average price range, the more points a company receives. 
  • Efficiency rating (20 points): We consider the company’s best available energy efficiency ratings, namely its highest Seasonal Energy Efficiency Ratio (SEER) and Annual Fuel Utilization Efficiency (AFUE) ratings. The higher the rating, the higher the score.
  • Sound rating (10 points): We analyze a company’s lowest possible sound rating in decibels. Companies with lower sound ratings are rated higher.
  • Warranty options (10 points): We award the most points to companies with warranties above the average five- or 10-year warranties. We deduct points from companies with warranties that cover three or fewer parts.
  • Energy Star certification (10 points): We award more points to companies with Energy Star-certified products.
  • Reputation (10 points): We review how each company is scored on the Business Better Bureau (BBB). We deduct points for any alerts or pending lawsuits.
  • Customer service and resources (20): We consider each company’s available customer support and resources. This includes whether the company offers a user-friendly product search tool, FAQ section, pricing guides, online manuals, and a mobile app. 

To share feedback or ask a question about this article, send a note to our Reviews team at reviews@thisoldhousereviews.com.