I am finishing my basement and will be enclosing the utility room from the living space. In the utility room there is the oil furnace, for water base-heat and hot water, and the Oil Tank. The utility room is about 6' deep by 15' long. I live in CT so it gets cold in winter. The doors will be non-louvered and the walls insulated to the living space. (I want to keep the noise of the furnace out of the new living space.) I would like to vent the utility area with outside air for combustion. The furnace exhaust is already connected to the chimney stack, located next to the furnace in the basement. The furnace is not presently designed to have a deticated air intake duct added, so I believe that I will have to vent the entire utility room. I guess I would follow the advice of others and simply add a grilled vent to the outside wall and duct the vent to the utility area. My question are:
1) How do I determine the size of the Vent ducts to match the combustion requirements of the furnace? 2) Will the outside "cold" air in winter be a concern to freeze pipes in the utility area, specifically the cold water lines?
Any other comments or suggestions are very appreciated.