Furnace Closet Door Requirements

Furnaces in basements.

Furnace closet door requirements.

The heat that the furnace radiates may lead to a fire hazard. Replace the door by reattaching the hinges. Do not install your furnace in a storage closet. Place the door across two sawhorses.

Mark the two sides of the door frame on the chalk line of the wall where the doors will be located. Close off vents in door. How to build a furnace enclosure. This is where ventilation become important not the ventilation of the furnace itself but the ventilation of the closet space.

Measure the width of the framing of the pre hung double interior doors. Cut off the bottom few inches of the door with a circular saw to create a gap that allows air to vent into the furnace room. In my house the air enters under the door through vents into a plenum and then goes up through the filter the fan the furnace and the a c evaporator. So the florida building code fbc g2406 and international residential code irc do not allow furnace installation in a bedroom bathroom or an any adjoining closet unless it meets these specifications that essentially isolate the furnace from the room.

If you have this arrangement the door must be vented. Once your combustion vents have been installed and the ceiling in the closet has been finished out you will want to close off any vents in the door. A furnace can be installed various places in a house in a basement an attic a garage a ground floor utility room or outside the walls. You can do this by attaching a piece of plywood on the back side of the door.

Unscrew the hinges from the furnace room door with a screwdriver. Jim stewart oct 22 18 at 1 32. The door when shut sealed against the inlet to the air handler.