Furnace Closet Door Requirements

The heat that the furnace radiates may lead to a fire hazard.
Furnace closet door requirements. Furnaces in basements. Measure the width of the framing of the pre hung double interior doors. 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. Mark the two sides of the door frame on the chalk line of the wall where the doors will be located.
You can do this by attaching a piece of plywood on the back side of the door. 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. This is where ventilation become important not the ventilation of the furnace itself but the ventilation of the closet space. Close off vents in door.
How to build a furnace enclosure. The heat can safely escape if there is space around the furnace. 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. Unscrew the hinges from the furnace room door with a screwdriver.
Replace the door by reattaching the hinges. A furnace malfunction can cause a deadly carbon monoxide co buildup. Place the door across two sawhorses. 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.
Jim stewart oct 22 18 at 1 32. Do not install your furnace in a storage closet. 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.