Last winter, I noticed the oil furnace running for much longer cycles. The increase in energy usage showed up on my daily utility bill. I tried lowering the control component by a couple of degrees, however the house already felt a bit chilly. The oil furnace was honestly putting out less air and really struggling to keep up with demand. Plus, the heated air had an unpleasant smell and was bringing dust into the home. When my hubby started coughing and complaining of a headache nearly every evening, I hired a local Heating and AC business for help. The Heating and A/C business evaluated out the oil furnace and found nothing beyond a minor build up of dust. When he evaluated the duct system, but, he discovered a significant accumulation of contaminants. Although I’ve been conscientious about professional upkeep for the oil furnace, I’d never given the air duct a thought. Over the years, dust, construction debris, bugs, webs, and all sorts of disgusting things had settled into those pipes. The buildup restricted the flow of air, making the oil furnace task much harder to achieve control component settings. I expected the duct cleaning process to be fancy, labor intensive and messy, Instead, the Heating and AC business brought in a piece of device that looked a lot adore an oversized vacuum cleaner. A hose with a brush attachment fitted into the ducts to wipe and suck up the contaminants. The process was completed in a couple of hours, with no disruption to my condo and no damage to the ducts. The improvement in the operation of the oil furnace, comfort of the condo and air quality was immediate.