food battle

"Seventy-two precious arts are kept in a brocade bag, they may be kept being a great treasure. Eighteen turn out the essence of the famous treatises on pugilistic arts. Eighteen other arts describe in greater detail training methods with the use of special tools and training equipment. Wonderful types of attaining the flexibility of the breath-chi, exercises in obtaining hardness and lightness, clenching methods are written with all the blood of monks in magazines which might be kept like a treasure inside the brocade bag. One can seldom meet people that genuinely wish to do exercises with zeal: to turn into a real hero, one must often feel bitter taste of hard labour. " /Secret Shaolin Treatises for the Pugilistic Art/ 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.