What is a heat exchanger in a gas furnace?

A furnace's heat exchanger is a set of tubes or coils that are looped repeatedly through the air flow inside your furnace for the purpose of heating air. Simply put, the furnace heat exchanger is the part of your furnace that actually heats the air.
A.

Can you fix a furnace heat exchanger?

Depending on the age of your furnace, a cracked heat exchange probably means you need a new system. A crack in your heat exchanger is no trivial matter. It's the most common cause of excess carbon monoxide in a home. But the decision to repair or replace a heating unit can be difficult.
  • How long does it take to put in a new furnace?

    The typical furnace install can take 4-10 hours. The average A/C install 4-8 hours. A complete furnace and A/C project will take 8-14 hours. It is our goal to complete each install in one day.
  • How much is the labor to install a hot water heater?

    Labor. Plumbers typically charge $45-$65 per hour and can typically install a water heater in a day (6-8 labor hours), for a total labor cost of $270-$520. Water heaters that are difficult to access or that are in tight enclosures can take an extra 2-3 hours ($90-$195) to install.
  • How long does a tankless water heater?

    You're also not losing heat that's idly sitting in a tank that, while insulated, is still going to lose heat and require constant reheating. While a typical tank water heater is supposed to last 10 to 13 years, tankless water heaters are estimated to last up to 20 years.
B.

How much does it cost to replace a heat exchanger in a furnace?

Most homeowners are looking for ranges, we can deal with that. Remember, it depends on your specific situation. Replacing a cracked heat exchanger falls in the range of $550 - $1500. In this situation it's time to take into account the age of the furnace and you might be better off considering furnace replacement.
  • Can you fix a furnace heat exchanger?

    Depending on the age of your furnace, a cracked heat exchange probably means you need a new system. A crack in your heat exchanger is no trivial matter. It's the most common cause of excess carbon monoxide in a home. But the decision to repair or replace a heating unit can be difficult.
  • How much is a heat exchanger for a furnace?

    Most homeowners are looking for ranges, we can deal with that. Remember, it depends on your specific situation. Replacing a cracked heat exchanger falls in the range of $550 - $1500. In this situation it's time to take into account the age of the furnace and you might be better off considering furnace replacement.
  • How much is a new forced air gas furnace?

    The Costs. The maximum average cost to buy and install a forced-air gas furnace is $1,600. The minimum average cost to buy and install a forced-air gas furnace is $1,300.

Updated: 2nd October 2019

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