The article you mentioned consider furnace type btus weighing air supply needs appeared march 4 2004.
Furnace room door requirements.
Vented room heaters wall furnaces vented decorative.
Apparently not applicable is this instance.
But if all you have are crawlspaces then you may be wondering what corner will work for a new furnace system.
Space is one of the most important considerations when installing a new furnace.
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.
Closets or surgical rooms or in a space that opens only into such rooms or spaces except where the installation complies with one of the following.
How to enclose a furnace room.
Furnace utility room any door leading to a utility room furnace hot water tank or laundry room must be a minimum 32 x 78 door.
Place the door across two sawhorses.
Insufficient clearance need metal door or fireproof door to reduce clearance requirements.
Insufficient combustion air need outside air or a full louvered door or a standard door with high and low vents.
The appliance is a direct vent appliance installed in accordance with the conditions of the listing and the manufacturer s instructions.
Many units are installed in garages or attics where there is enough room to fit the unit in a corner.
Typically for gas furnaces there must be a minimum of 24 front accessibility to the furnace and any access door or panel must have enough clearance space to permit removal of the largest component in the equipment.
Some furnaces allowed off sleeping areas with outside air and solid sealed fireproof door.
Finishing your basement allows you to convert a little used storage space into space used for another purpose such as an office bedroom or rec room.
Replace the door by reattaching the hinges.
Part of this.
Unscrew the hinges from the furnace room door with a screwdriver.
The furnace room shall have an opening or door large enough to permit removal of the largest piece of equipment but not less than 20 inches wide.
Rooms or spaces that are not part of the living space of a dwelling unit and that.