Hi, I am most likely going to get a new furnace come spring. I wanted to have the furnace moved from it's current location (in the kitchen) to our attached garage. I was wondering if some of the experts here thought this would be a good idea. The gas and electric are easily accessible in the garage. Thanks in advance for any answers.

The big problem would be getting the supply ducts and the return air ducts out to the garage, if that is not a problem I only see one other thing that might a problem and that is how to get rid of your condensation from the A.C.

The garage is already heated so there is a duct out there, would I be able to use that as the feed for the rest of the house?

Another concern... check your local codes... The fuel gas code ( NFPA 54 ) states a minimun height that the unit must be raised above the floor to be 18 inches, and considerations of combustion / ventilation air. My concern is also the possible issue of carbon monoxide entering the duct work (which is feeding the living space) from the garage space from a motor vehicle running !

Sorry the one duct to the garage wouldn`t be enough to feed the rest of the house,, just my opinion, thinking the furnace would overheat and cause the limit switch to kick

Another concern... check your local codes... The fuel gas code ( NFPA 54 ) states a minimun height that the unit must be raised above the floor to be 18 inches, and considerations of combustion / ventilation air. My concern is also the possible issue of carbon monoxide entering the duct work (which is feeding the living space) from the garage space from a motor vehicle running !


We cant't really park cars in there anyway, and I want to thank everyone for there answers. I appreciate the help.

Mike

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Originally Posted by nova0525

Another concern...check your local codes....The fuel gas code ( NFPA 54 ) states a minimun height that the unit must be raised above the floor to be 18 inches, and considerations of combustion / ventilation air. My concern is also the possible issue of carbon monoxide entering the duct work (which is feeding the living space) from the garage space from a motor vehicle running !


We cant't really park cars in there anyway, and I want to thank everyone for there answers. I appreciate the help.

Mike

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It doesn't matter if you use the garage for parking the car or not the ordinance still applies.

And like someone above said the duct that is already in the garage would not be big enough to supply the entire house.

I Am not sure I'm understanding what your saying? If the unit has to be 18" off the ground, what difference does it make if it is off the ground in the garage or the kitchen? The reason I say we can't park in the garage is because the previous owner basically turned it into a utility room already. Laundry and water heater are already out there.

Best for you to consult with the local inspector since you are saying it is no longer a garage. Actually just declare it on your plans for the job.

The reason for the 18 inch rule is because of the possibility of spilled combustibles in the garage. Gas fumes are heavier than air and therefore stays close to the floor, so it is considered that if the point of ignition, hence the pilot of the water heater, being 18 inches above the floor it would give a person time to get out of the area before the fumes got to the 18 inch level.
It is a very strict ordinance where I live, so I don't know how it would apply to your utility room.