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How long does it take to change out a heat exchanger?
Unfortunately, heat exchangers are expensive to replace because the part itself is expensive and it can take up to 10 hours for a tech to replace it.
Can you replace just the heat exchanger?
You can’t repair or replace a heat exchanger because there’s too big a risk of carbon monoxide leaking into your home. It’s also cost-prohibitive. That’s why you need to replace the entire furnace.
How hard is it to replace a heat exchanger?
And because it can take up to 8 hours or longer to replace a heat exchanger, the labor itself is the bulk of the repair cost. Most furnace installers offer a labor warranty that lasts anywhere from 1 to 5 years after they installed the unit.
Should I replace a cracked heat exchanger?
If your heat exchanger is cracked, your furnace is probably nearing the end of its life (18-20 years). If that’s the case, then it’s usually not worth the money to replace the heat exchanger. No matter who you ask, replacing a heat exchanger will be expensive. Heat pumps can heat and cool your home.
How do you know if you have a bad heat exchanger?
A gas furnace that is functioning will have a stable blue flame. If you notice your burner has a yellow flame that moves, it means that either your burner is dirty or that the heat exchanger is cracked. Note: Flames that flicker or bend more when you turn on the fan are a good indicator of a cracked heat exchanger.
When do I need to replace my heat exchanger?
Most furnace installers offer a labor warranty that lasts anywhere from 1 to 5 years after they installed the unit. So, if your furnace is still under its labor warranty, we definitely recommend replacing just the heat exchanger since most of the repair cost will be covered under warranty.
How to test for a flow switch in a heat exchanger?
To test for flow switch isolate hot water inlet turn on tap, sit at boiler crack open cold inlet until you hear a slight click from microswitch then listen for fan start, that’s enough, shut isolator. repeat and repeat and repeat 20 times at least.
How do you remove a heat exchanger from a furnace?
The boiler or furnace houses the heat exchanger and you need to go through it in order to get access to the heat exchanger. Locate the screws on the front of the boiler or furnace. There may be several sets of screws. If there are several sets of screws then remove them all. Once the screws are removed you can remove the metal panels.
What happens if you disconnect a heat exchanger?
Disconnecting or accidentally puncturing a pipe or hose can cause a stream of steam bellowing toward you. This will surely send you to an emergency room. Prior to replacing the heat exchanger you should turn the electric off at the main breaker. Give the furnace or boiler time to cool down before around it.