I’ve lived in my apartment for almost twenty years and have typically been actually conscientious about scheduling annual service for my gas furnace and a/c, every September, I call up the local Heating and Air Conditioning contractor and set up an appointment for a thorough inspection, tuning and cleaning. I call back in March to have the a/c took care of. The contractor resolves any complications with wear and tear, and removes any buildup of contaminants. Because of this official upkeep, I expect the heating and cooling idea to operate at peak capacity and efficiency. I know it will maintain a comfortable temperature and deliver a healthy home. I was both surprised and frustrated when the gas furnace failed to live up to demand last winter. I noticed the heating idea was running for longer cycles and struggling to maintain an even, comfortable temperature. There were freezing pockets in many rooms, and the heated air had an unpleasant, musty smell. Whenever the gas furnace started up, my whole family would start coughing, sneezing and complain of headaches. There was absolutely an excessive amount of dust flying around. When I saw how high my yearly energy bill was, I finally called for heating repair. The Heating and Air Conditioning contractor found no troubles with the gas furnace. When he checked the duct system, however, he discovered an spine-chilling accumulation of contaminants. There was dust, dirt, bugs, webs, decomposing rodents, and mold growth hidden within the ducts. The complications with the duct idea were responsible for our degraded air quality, diminished comfort and greater energy consumption. I was a bit irritated that the Heating and Air Conditioning contractor had never advocated service for the duct system. Since it’s nearly genuinely concealed in the walls, ceilings and crawl spaces, I never thought of it.