For example, it is possible to reduce expenditure on heating energy in winter by a complete blockage of air exchange and ventilation (proof house), but on long term it will have:
Kwa mfano, inawezekana kupunguza matumizi ya nishati inapokanzwa katika majira ya baridi na kuziba kamili ya hewa kubadilishana na uingizaji hewa (Ufungashaji nyumba), lakini muda mrefu itakuwa: