1. Insulate and Weatherproof! The most effective HEATING AND COOLING system in the world can not make up for a badly protected house. Drafty windows and door seals as well as under-insulated attic rooms as well as exterior walls can cause your HEATING AND COOLING to work double-time trying http://heating-and-cooling49494.qowap.com/20339318/10-smart-tips-to-keep-your-home-heating-air-conditioning-system-power-effective