Fumes in basement

[Jack2007]

I'm getting exhaust fumes in the basement after the oil furnace runs.

When standing in front of the barometric damper with the oil furnace OFF and the heat pump ON I feel air blowing out the barometric damper.

Is this normal ?

My system;
Carrier Two Stage,
Split System: Heat Pump with Remote Outdoor Unit-Air-Source
Outdoor Unit Model Number: 25HNA648A30
combined with Indoor Unit Model Number: CNPV*4821A**
Oil Furnace 58VMR120-20
Variable speed blower.

The chimney has a steel liner.

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[2old2rock]

If in fact you are getting exhaust fumes from a barometric damper, turn everything off and call for service!!!
If you are feeling warm air blowing from a barometric damper, that is normal.
It might not be set-up properly, but it is not a hazard.
If your heat pump is running, and not the oil furnace, it is doubtful you are getting exhaust fumes from a barometric damper. A heat pump produces no exhaust fumes.
Needless to say, better safe than sorry. Call for service.
Do you have a CO detector?

[Jack2007]

If in fact you are getting exhaust fumes from a barometric damper, turn everything off and call for service!!!
If you are feeling warm air blowing from a barometric damper, that is normal.

Thanks



It might not be set-up properly, but it is not a hazard.
If your heat pump is running, and not the oil furnace, it is doubtful you are getting exhaust fumes from a barometric damper. A heat pump produces no exhaust fumes.

Yes, what I meant was the oil furnace ran for a few minutes then the heat pump took over. I was not in the basement when the oil furnace was running.


Needless to say, better safe than sorry. Call for service.
Do you have a CO detector?
Yes I have a number of CO detectors. Thanks.

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[beenthere]

If you have warm air coming out of your barometeric. Then you probably have leaks in your return air system.

[Jack2007]

If you have warm air coming out of your barometeric. Then you probably have leaks in your return air system.
Pulling air out of the barometric ?

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[beenthere]

Pulling air out of the barometric ?

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Yep.

The leaks in your return duct, are pulling in basement air. And putting your basement into a negative pressure. And pulling the air back down out of the chimney.

[Moose]

As BT said, building is de-pressurised. Should never have air coming out of barometric.. means chimney is now a fresh air duct. Need to install a combustion/make-up air duct & probably seal return air ducts & filter access. Maybe upsize returns as well.

[JJDH]

Well the negative pressure may be true. Also he should call a trained oil technician, have them check the set up, look for sootin, CHECK DRAFT..... You have a steel liner, make sure the cap is still on.