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Stay warm with furnaces that use natural gas, liquid propane, or oil to heat your home. Furnaces are ideal for homeowners who experience extremely cold winters. They can be paired with an air conditioner or heat pump to cool your home inthesummer.
What to look for: Energy efficiency, cost, heating stages, ENERGYSTAR®
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FAQs
As part of a central heating and cooling system, a furnace converts fuel (gas or oil) into heat, and then uses a blower to circulate warm air throughout your house. In summer, a furnace works with your heat pump or air conditioner to deliver cooled air throughout your home. The main components of a furnace include burners, a heat exchanger, a blower motor, and controls.
AFUE stands for annual fuel utilization efficiency. This industry rating measures the annual efficiency of a furnace. A higher AFUE means your heating system is more energy efficient. You can learn more about AFUE here.
Use our Repair or Replace tool to help you make this decision. The answer will be different for every homeowner. We recommend replacing your furnace if it’s 15 years old or more, has an AFUE of less than 80%, needs frequent repairs, is declining in performance or your energy costs are rising. If you do need to replace your furnace, consider the AFUE rating, heating stages, and cost of your new unit.
The higher the AFUE, the less fuel you'll need to keep your home comfortable. Trane furnaces with 90 or higher AFUE measurements deliver at least 90% of the heat they create to your home, which exceeds the government’s minimum standard of 80 AFUE for new furnaces.
If you have a furnace that is at least 10 years old, it probably has an AFUE between 60 – 70, meaning you could be losing 40 cents of every dollar you spend on heating energy.
A gas furnace uses natural gas for fuel and distributes heat to your home. Oil furnaces convert oil into heat energy that is then distributed to your home.
Your total furnace replacement cost will vary based on several factors, including heating capacity, heating stages, fuel type, and cost. Our pricing guide and individual furnace model pages can give you additional information.
An average gas furnace will last 15-20 years. Some furnaces can last longer depending on furnace maintenance and they are quality units to begin with. Some units may not last as long if they are not properly maintained, if you use them 6 or more months out of the year, or if they are a lower-quality unit. Get some maintenance tips to prolong the life of your furnace.
Schedule furnace service today.
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