3990 -- Controlling the Flow of Combustion Air and Fresh Air in Housing PDF

Evaluates means of regulating the flow of combustion and fresh air in residential housing and gauging the impact on heating loads in a northern climate. Three methods of terminating combustion air ducts were evaluated - open pipe, diffuser, and motorised damper. In addition, the effect of installing a fresh air duct connected directly from the outdoors to the return side of a forced-air furnace was measured. The results are applicable to areas of Canada and the United States in which airtight construction methods and/or local codes require the position for identifiable supplies of combustion and fresh air.

KEYWORDS: year 1996, measuring, combustion air, testing, air flow rate, air infiltration, energy consumption, ducts, energy conservation, low energy housing, diffusers, dampers, automatic, warm air heating, comparing