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What Is the Best Furnace Brand in 2021?

Winter is coming… If you’re due to install or replace your home furnace, then here’s your chance to buy one that gives you lasting value.

When comparing the top furnace brands, there are numerous factors to take into account:

  • Energy efficiency. The minimum acceptable AFUE (annual fuel utilization efficiency) rating for a new furnace is around 80%, although the best furnace and AC brands offer 90-99% energy efficiency. The AFUE rating tells you how much of the fuel used by the furnace actually turns into heat, e.g. 96% efficiency means you get 96c of heat for every $1 spent.
  • Quality & Reliability. If you’re going to invest thousands of dollars in a new furnace, then you want to be sure you’re getting the best. Some brands have a reputation for reliability and some don’t, so it’s worth checking customer feedback beforehand.
  • Warranty. The top furnace brands offer 10-year warranty on parts and lifetime or 20-year warranty on the heat exchanger.
  • Price. A new gas furnace can cost anywhere from $1,500-$5,000+ for purchase and installation. You can find furnaces for under $1,000 if you purchase without installation.

There are dozens upon dozens of home furnace brands on the market. To help narrow your search, we present this list of the 10 best furnace brands in 2021. 

1. American Standard – Our Best Overall Furnace Brand

American Standard is one of the biggest names in heating and cooling products. When you purchase an American Standard furnace, you know you’re getting a product that’s built to last–with an average shelf-life of 15-20 years. American Standard has 14 gas furnaces with AFUE ratings from 80% to 97.3%. Whatever you’re looking for–whether it's a single-stage or two stage (for different settings on cold and mild days), large or small, or efficient or quiet–American Standard, has all types of furnaces.

2. Lennox – Most-Efficient Furnaces

Lennox’s Signature Collection SLP99V variable-capacity gas furnace is the most efficient product on the market, with a 99% AFUE rating. Lennox has several other Energy Star-certified two-stage gas furnaces with energy ratings above 96%, some of them with built-in Power Saver technology. Overall Lennox has 23 models with varying selling points–including being reliable and economical.

3. Bryant – Quietest Furnaces

Bryant earns a place on our list of the best gas furnace brands due to how quiet its products are. It has 13 furnaces with AFUE ratings ranging from 80% to 98.3% and a choice of single-stage, two-stage, and modulating configurations. Aside from ultra-quiet performance, other features include consistent airflow and enhanced summer humidity control. Bryant is a part of the United Technology Corp group of companies, which also includes Carrier, Payne, and Heil.

4. Rheem – Best Furnace Brand for Maintenance

Rheem’s propane and natural gas furnaces are renowned for their easy installation and maintenance. Most of Rheem’s line of 21 gas furnaces come with built-in PlusOne Diagnostics, an industry-first 7-segment LED display that instantly identifies issues–making service calls easy. Rheem furnaces aren’t as energy-efficient as competitors, with most carrying an AFUE rating of 80% and only a handful exceeding 96%. But if you’re looking for a furnace that’s easy to handle and maintain, then look no further than Rheem. 

5. Trane – Best Oil Furnaces

Trane is owned by Trane Technologies and is a sister company of American Standard. It offers gas furnaces as well as two oil furnaces that promise reliable heat all winter long. The XV80 oil furnace has a variable-speed fan that adjusts speed to provide a consistent flow of warm, comfortable air. The XP80 has a four-speed blower and in-built Trane CleanEffects Air Cleaner, removing dust, pollen and other irritants from the air. Both oil furnaces have an 85% AFUE rating, which is pretty good for oil furnaces.

6. Goodman – Best-Value Gas Furnaces

Goodman is part of Daikin Industries, a member of the Fortune 1000 and a leader in HVAC products. It offers the best value for top-of-the-line gas furnaces, with prices starting from less than two grand for purchase and installation. Goodman has a huge range of gas furnaces, with 15 furnaces with over 90% energy efficiency and an additional 13 furnaces with 80% efficiency. Therefore, you can find products to suit virtually all price points and preferences at Goodman.

7. Carrier – Most Reliable Furnace Installation

While most of the top furnace brands only work with authorized dealers, Carrier goes a step further and requires its dealers to be factory trained. Therefore, when you order purchase and installation from Carrier, you can be sure of getting off to a smooth start. Carrier offers three price tiers: Infinity, Performance, and Comfort. The premium Infinity series is fairly expensive, but it’s worth it if you want your furnace to be energy efficient (up to 98.5%), ultra-quiet, and have great humidity control. 

8. Ruud – Most Eco-Friendly Furnaces 

Ruud is owned by Paloma Industries and offers the same maintenance-friendly diagnostics tools as sister company Rheem. Along with Rheem, it was the first home furnace brand to offer environmentally friendly Ultra Low NOx technology. NOx is an abbreviation for nitrogen oxides (a collection of harmful greenhouse gases) and Ruud’s furnaces are known for their low emissions. Ruud has 23 gas furnaces with AFUE ratings ranging from 80% to 96%. 

9. Heil – Smartest Home Furnaces 

Heil has three lines of gas furnaces – ranging from budget-friendly to standard to the premium Ion series. Ion gas furnaces feature enhanced levels of comfort and temperature control. They come with in-built Wi-Fi capability, enabling smart control of the system. The Ion series has four gas furnaces, ranging from variable-speed furnaces with energy-ratings up to 98% to durable furnaces with Ultra Low NOx emission. 

10. Amana – Durable Gas Furnaces 

Amana’s furnaces are more expensive but possibly more durable than those offered by sister company Goodman. Amana has an impressive range of multi-speed and two-stage variable-speed gas furnaces. Amana’s furnaces are solid without standing out for any particular reason.

Keeping You Warm for Many Winters

Thanks to the top home furnaces, you can stay warm and comfortable this winter– and for many winters to come. Today’s gas furnaces are more advanced and efficient than they were in the past. Therefore, if you’re the market to purchase or replace your furnace, you may as well get one that’s built to last.


How we created this
list
Compiled from “Best of” lists published by the world’s most trusted sources, and with our own recommended brands peppered in - this Top10 list aims to help consumers make smarter decisions.