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pdwoods55 11-15-2010 10:57 AM

Installing a furnace in my shop
I replace my house furnace with a new furnace. I want to install the old furnace in my Wood shop. I was going to put the furnace in the garage and pipe the heat into the shop. So the furnace will be in a separate unheated room. One question I have is about the cold air return. Do I need to pipe that into the shop as well? My concern is forcing air into a room with no air return. The shop is not air tight by any means but still. The other problem I have is it ok to put the furnace in an unheated room and will that cause it to run more/less efficient? I could put the furnace in the shop but, I was afraid of wood dust and open flames. Any help would be appreaded.

beenthere 11-15-2010 05:24 PM

IS it a 90%/condensing furnace? If it is. You need to make sure it never gets cold enough to freeze the condensate drain or trap.

Installed in a garage. It must have its burners and blower motor a min of 18" above the floor. Its a fire code.

Next. it must have a supply and return duct to the shop. And may not draw or discharge any air from or into the garage.

pdwoods55 11-16-2010 11:39 AM

Thanks Beenthere. It's not a high effecent furnace so that is not a problem. I didn't know about the 18" but meet that requirement anyway.

beenthere 11-16-2010 05:03 PM

Your welcome.

Stay warm.

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