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10 Best Furnaces of 2018

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Updated: Aug. 7, 2018

FurnaceCompare tracks 900 series of warm air furnaces. This list ranks the top 10 series by the ratings assigned by our reviewers. Series which are no longer for sale in 2018 have been removed from the list.

The list represents the top-rated furnaces available in the US and Canada. These furnaces vary in efficiency from 80% to more than 97% efficient, as measured by the Annual Fuel Utilization Efficiency or AFUE. They also vary in configuration, features and price.

Rank Brand and Series Consumer Rating Efficiency (SEER) Average Pricing
10. Luxaire TG9S 3.68 out of 5 up to 95.5% not available
The TG9S is a natural gas furnace in Luxaire's Climasure series. It has a single-stage burner, and boasts a 4-stage PSC blower motor.
9. Maytag PGC2TC 3.78 out of 5 up to 95.1% not available
The Maytag PGC2TC offers two-stage heat and a variable-speed blower designed to reduce noise and uneven temperatures. A 30-second blower delay provides warm duct temperatures at start-up.
8. Frigidaire FG7TC 3.8 out of 5 up to 95.1% not available
Frigidaire's FG7TC gas furnace offers two-stage performance with a variable-speed motor designed for precise comfort control and quiet airflow. The blower's insulated compartment contributes to the overall quiet performance, while the blower's 30-second delay provides warm duct temperature.
7. Goodman GMEC96 3.86 out of 5 up to 96% $1,222
The Goodman GMEC96 provides two-stage heat with a multi-speed ECM blower. Its multi-position configuration, along with optional side venting and left or right connection for gas and electrical service, provides increased installation options.
6. Ruud Achiever 4 out of 5 up to 95% $1,128
The Ruud Achiever uses the PlusOne Ignition System, a direct spark ignition that the company states is one of the most reliable ignition systems available. The Achiever features a 7-segment LED display and a patented heat exchanger designed to reduce operating sound while improving efficiency.
5. Frigidaire FG7MQ 4 out of 5 up to 97% not available
The Frigidaire FG7MQ is an iQ Drive modulating gas furnace which analyzes the temperature every 60 seconds and adjusts itself accordingly. The unit's iQ Drive controller offers fully programmable comfort along with as well as maintenance and troubleshooting diagnostics.
4. York LX 4.14 out of 5 up to 97% $1,445
York says that its LX series of gas furnaces provide high efficiency in a small, 33-inch cabinet. Depending on the unit, a modulating burner or a variable speed blower improve the heating comfort.
3. Thermo Pride OL5 4.2 out of 5 up to 86% $3,766
Thermo Pride's OL5 oil furnace is designed for low-ceiling basement installation. It comes standard with a PSC blower motor, but can be upgraded to a more efficient ECM motor.
2. York TM9V 4.5 out of 5 up to 96% $1,950
York's TMV9 gas furnace is equipped with a two-stage burner and a variable-speed blower designed to deliver quiet, precise comfort. The unit's compact 33-inch height and multi-position configuration uses less space and provides increased installation options.
1. York TG8S 5 out of 5 80% $894
York's TG8S provides single-stage heat with a constant-speed PSC fan motor. It features a compact 33-inch design with multi-position configuration for greater installation options.

Methodology

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Consumers and homeowners have submitted thousands of reviews to this site. In addition to reviewing a particular model of equipment, the reviewer also assigns a rating from 1 ("Very Unsatisfied") to 5 ("Very Satisfied"). The following list ranks the top 10 furnace series from best to worst, based on the average of those consumer satisfaction ratings.

FurnaceCompare.com has collected reviews on more than 90 brands and 450 different series of furnaces. However, we have only included a series on this list if we have at least 5 reviews of that series, and if the series is available in 2018. If we only have a few reviews, there is a risk that a single homeowner will skew the average rating too far in one direction or another.

Average Pricing

There are two different types of prices shown in the "Average Pricing" column.

  • If you see a simple price, that is the average price that we found on the websites of internet retailers that sell that particular series of furnaces, or in the price books of the manufacturers themselves.
  • If you see a price followed by the note (installed), this means that retailers are under agreement with the manufacturer not to publicly display the price of the units. In these cases, the price is an average of quotes given to homeowners.

Note that prices -- even when they are published online -- can vary substantially based on the capacity of the unit in question: 24,000 BTU units are typically cheaper than 60,000 BTU units of the same brand and series.

The "installed" prices can vary even more dramatically. Not only do they cover a range of capacities, but prices also vary geographically and from installer to installer Some installations may require more work than others, thus increasing the price.

You can use our furnace cost calculator to get an estimate of the cost to install a furnace customized for your city and state.

Detailed Review of Furnaces

#1. York TG8S

The York TG8S is a single-stage heat cycle gas furnace ranked #1 by our reviewers. With a compact size of 33 inches in height, its design is conducive to multi-position installation. The efficiency rating of the furnace is 80% AFUE, and its self-diagnostics ensure quality performance. It features a tubular, aluminized steel primary heat exchanger, and a 4-speed, direct drive PSC motor.

Parts are covered under 10-year limited warranty, and the heat exchanger is covered under 20- year limited warranty.

Pros

  • Several reviewers state that the unit is a good value and low-maintenance.

Cons

  • A reviewer on hvac-talk.com notes that the York TG8S is a builders’ grade furnace.

#2. York TM9V

The York TM9V is an Energy Star qualified furnace with a high efficiency rating of 96% AFUE. It was awarded the Good Housekeeping Seal, and the two-stage burner and variable-speed ECM fan motor ensure quiet, precise airflow. Its compact size of 33 inches, its multi-position design, and its self-diagnostic display make it conducive to convenient operation.

Parts are covered under 10-year limited warranty, and both heat exchangers are covered under lifetime limited warranty.

Pros

  • According to some reviewers, the unit provides quiet, balanced airflow and reduces energy bills.

Cons

  • One reviewer states that the furnace pan leaked on the flame sensor.

#3. Thermo Pride OL5

The Thermo Pride OL5 is an oil-fired furnace with an efficiency rating of 86% AFUE. It offers a lowboy design perfect for installations with height constraints. The unit also comes with a standard PSC blower motor that can be upgraded to the ECM blower motor for better performance.

Parts are covered under 10-year limited warranty, and the heat exchanger is covered under lifetime limited warranty.

Pros

  • Many of our reviewers praise the decades-long longevity of this furnace.

Cons

  • One homeowner complains that the unit could not adequately heat an older, more expensive house.

#4. York LX

York LX is a series of York furnaces which all have the Good Housekeeping Seal. Select models are Energy Star qualified with up to 97% AFUE. With a compact design of 33 inches, its installation options are versatile. The York LX series features the high efficiency ECM fan motor and Advanced Comfort Features to ensure balanced airflow.

Parts are covered under 10-year limited warranty, and the heat exchanger is covered under lifetime limited warranty.

Pros

  • According to some reviewers, the unit is quiet and can reduce heating bills.

Cons

  • One reviewer complains about a broken module on the blower fan, and another reviewer complains about a malfunctioning condenser fan.

#5. Frigidaire FG7MQ

The Frigidaire FG7MQ is a modulating gas furnace that was awarded the Energy Star “Most Efficient” rating in 2014. It has an efficiency rating of 97% AFUE and features a communicating thermostat and iQ Drive technology that maintain its low energy levels.

Parts are covered under 10-year warranty, and the unit will be replaced if the heat exchanger fails within 10 years.

Pros

  • According to some homeowners, the unit is efficient, quiet, and can reduce heating bills.

Cons

  • Some reviewers have warned of the necessity to clean the heat sensor because of charring and oxidation.

#6. Ruud Achiever

Ruud Achiever furnaces have efficiency ratings of up to 96% AFUE. Some models have a 4- way, multi-pose design for easy installation. The unit features both the PlusOne Ignition System and the Industry-First PlusOne Diagnostics system which ensure reliable performance.

Gas models have a 10-year conditional parts warranty, while oil models have a 5-year parts warranty. Some models have a lifetime limited warranty for the heat exchanger.

Pros

  • One reviewer states that after ten years, the unit has some difficulty lighting, but it is generally reliable and efficient.

Cons

  • On justanswer.com, several homeowners report instances of ignition problems related to the circuit board.

#7. Goodman GMEC96

The Goodman GMEC96 is a multi-speed, two-stage gas furnace. With an Energy Star label, the unit has an efficiency rating of 96% AFUE. Its self-diagnostic control board and multi-position design promise easy operation for the handler. It also features a heavy-duty aluminized-steel tubular heat exchanger and a secondary stainless-steel heat exchanger.

The Goodman GMEC96 has a 10-year unit replacement heat exchanger warranty, a lifetime heat exchanger limited warranty, and a 10-year parts limited warranty.

Pros

  • A majority of our reviewers compliment the unit’s efficiency.

Cons

  • Several reviewers on goodmanmfg.com report instances of faulty control boards and leaks in the furnace.

#8. Frigidaire FG7TC

The Frigidaire FG7TC is a two-stage gas furnace featuring a single-speed or variable-speed blower option. Both models have an Energy Star label and have an efficiency rating of 95.1% AFUE. The SmartLite technology on both models can also prolong ignitor life.

The Frigidaire FG7TC has a 10-year parts warranty, a 10-year Comfort Quality Pledge, and a limited lifetime heat exchanger warranty.

Pros

  • Several reviewers express surprise at the unit’s quiet operation, and some claim its high level of efficiency reduced their heating bills.

Cons

  • There are reports on doityourself.com of two ports on the condenser box on older models occasionally becoming obstructed with water.
  • Some reviewers also complain of blower motor burnout.

#9. Maytag PGC2TC

The Maytag PGC2TC is a variable-speed, two-stage gas furnace with adaptable ventilation. With an Energy Star label, the efficiency rating of the unit is 95.1% AFUE. Additionally, it features a heavy gauge aluminized steel heat exchanger and a stainless steel secondary heat exchanger.

Maytag PGC2TC has a 12-year parts warranty, a 12-year Dependability Promise, and a lifetime limited warranty for the heat exchanger.

Pros

  • Several reviewers compliment the unit’s quiet operation, its ability to reduce energy bills, and its 12-year warranty.

Cons

  • One reviewer complains that the unit has difficulty operating in extreme cold weather. Another reviewer complains of a failed evaporator coil.

#10. Luxaire TG9S

The Luxaire TG9S single-stage furnaces all have an efficiency rating of 95.5% AFUE, and they have a durable, compact design with a height of 33 inches. The unit features self-cleaning Inshot burners, aluminized steel tubular heat exchangers, shutoff sensors, and a main gas valve shut-off to ensure safety.

Parts are covered under 10-year limited warranty, and the heat exchanger is covered under lifetime limited warranty.

Pros

  • Several reviewers laud the efficiency and simplicity of this unit.

Cons

  • There have been a few reports of individual components breaking.
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