Furnace in garage

[Gerald C. Wilcox]

Doing some research before the inspection. Furnace in garage apparently heats the garage and a family room. There isn't any appilcation where this is allowed is there?
Thanks in advance!

[David A. Andersen]

No. You can do the garage only, but not an interior space with the garage.

[Wayne B. Wilson]

David even if there is no return air from the garage? and a fire damper?

[David A. Andersen]

A supply register into the garage will pressurize the garage and de-pressurize the house. Both will cause efficiency issues and CO poisoning potential.

Pushing air into the garage will want to find it's way back to the house. The house, in a low atmosphere will suck all it can from that garage which is even a higher atmosphere than outdoors.

Fire damper will correct the fire barrier issue between the garage and house.
Air quality is still a concern.

I am not discussing code issues, only design issues.
Too much gets past the code department to concern myself with their views.

[Wayne B. Wilson]

Originally Posted by dandersen

A supply register into the garage will pressurize the garage and de-pressurize the house. Both will cause efficiency issues and CO poisoning potential.

Pushing air into the garage will want to find it's way back to the house. The house, in a low atmosphere will suck all it can from that garage which is even a higher atmosphere than outdoors.

Fire damper will correct the fire barrier issue between the garage and house.
Air quality is still a concern.

I am not discussing code issues, only design issues.
Too much gets past the code department to concern myself with their views.

I am on your side of the fence David The reason i asked i wrote one up and got kicked in the butt because the code guy approved it . At least i can sleep at night .

[David A. Andersen]

Ah..... another "case in point"!

I'm used to getting my butt kicked!

If the client wants to listen to the code guy, that's no longer my problem...

I sleep just fine!

Wrong is wrong, no matter how many times it's done wrong, it's still wrong!

[Gerald C. Wilcox]

Thanks for the imput, common sense and safety always comes first.