Heat exchanger going out

[warrington]

I had a a/c heat company come out. I was not there. They replace a thermostat. Did a inspection in the heater. He said the heat exchanger is going out and it had to be condemned. It is gas heat. Said that the air was blowing over the heat exchanger there was an escaping of air that was blowing it out. He did a air test that the air could be seen escaping the wrong area It has worked well in the past. No CO2 alarms
This is a rent house
It does need to be replaced so I'm in the process of getting bids to replace it. Just wondering if I turned it back on, had a couple of CO2 doctors right there at i, maybe even one in the verticle closet. This would alarm any risk

[jdavidson]

Do not turn it on.

If the heat exchanger has a hole or crack, the technician should have turned the gas valve off and tagged it “Do not operate “

Do not turn it on

[BarW]

Assuming the tech is correct I would not operate the unit.

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[warrington]

Spoke with him and he said the problem is the smoke test that he performed. He sent me a video and when he sent a puff of smoke up, the smoke pushed back and he that air isn't getting into the exchanger

[warrington]

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[bowhntrmatt]

How old is the furnace? That style of furnace typically has a 20yr heat exchanger warranty from almost any mfr. Getting the part might be a whole different story though.

[smokeless]

There is no going bad. Either it’s good or bad. Once the heat exchanger gets a hole in it, you’re getting the burnt gas into the house. Carbon monoxide.

[Smokeater]

Spoke with him and he said the problem is the smoke test that he performed. He sent me a video and when he sent a puff of smoke up, the smoke pushed back and he that air isn't getting into the exchanger

Smoke test just means there wasn't a draft. Lil fishy to me.

[PYBUCK]

If you cannot get a replacement exchanger, the heat exchanger can be silver soldered depending on how bad the crack is. Check you vent stack to make sure nothing is blocking it.

[dwhite]

I agree with PYBUCK. It sounds like it could be a venting problem.

[Bill M]

Call Marco with Airecool, 979-777-2520, 979-694-9645

[warrington]

He didn't say there wa sa hole just it wasn't drafting properly and the blown air was pushing some air out

[Dr. Evil]

That smoke should be going out through the flue pipe