High Efficiency Furnace Exhaust Distance To A Door Or Window

Forbidden locations for gas heater direct vent terminations the exhaust vent terminal shall not be located.

High efficiency furnace exhaust distance to a door or window.

A conventional furnace vents these combustion gases through a vertical exhaust system that is attached to the furnace. A high efficiency furnace uses a different type of venting system because it extracts the heat that remains in those combustion gases before venting the resultant mixture of water and carbon dioxide. The vent terminal shall be at least 12 inches below 12 inches horizontally from or 12 inches above any door window or gravity air inlet into a building. 7 where air intake and exhaust openings are in exposed locations provision shall be made to protect them from the entry of precipitation by the use of louvres weather cowls or.

Other aspects of high efficiency furnace venting. Within 3 feet 900 mm horizontally of the vertical centerline above the gas service regulator vent outlet to a maximum vertical distance of 15 feet 4 5 m. The bottom of the vent terminal shall be located at least 12 inches above grade. Less than 1 foot 300 mm above grade level.

There are several other important aspects of high efficiency furnace venting. This high efficiency venting system must be installed when you install the new furnace.