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A tighter built home means less outside air infiltrating in the home, which means less oxygen to use for combustion within the furnace. As the furnace burns fuel and oxygen for combustion, it "eats up" surrounding air, which has to be "made up" with fresh air. If air cannot type in the home as easily anymore, this can cause serious issues. As the surrounding air is utilized for combustion, rather than substituted with oxygen, a negative pressure inside the space can happen. This could create combustion problems for the furnace, plus burn up fresh air for anybody inside the home. The Department of Business, Energy and Industrial Strategy sponsored award is one of the most competitive categories in the Trade Association Forum’s annual awards. It recognises a successful initiative, by a trade association, to tackle an important issue that will drive the future prosperity and growth of its members. Getting fighting fit