Make each vent one square inch in size for every 1 000 btu hr.
Furnace room ventilation requirements ontario.
However without adequate ventilation the appliances inside won t be able to function properly.
On july 1 2017 sentence 9 32 1 3 1 of division b of the regulation is amended by striking out dwelling unit and substituting.
The ontario building code ventilation of rooms and spaces 9 32 1 3.
This means that a typical furnace of 100 000 btu hr.
Would require two louvres 10 by 10 inch each.
Technically you are correct but it depends on the type of furnace in this room i e is it a gravity warm air furnace draft hood or fan assisted or a direct vent appliance which brings fresh air back into the home.
Furnace rooms are typically small to save space elsewhere in the home.
Input of your furnace.
The article you mentioned consider furnace type btus weighing air supply needs appeared march 4 2004.
A furnace room is an enclosed space in a home or basement that houses appliances such as the furnace dryer washing machine water heater and air conditioner.