Duct Cleaning in Troy, MO
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Step 1 of 3: Equipment
Seven months of heat pushes a lot of air through those ducts
Your furnace runs October through April here, close to seven months a year. Every time it kicks on, air moves through the ductwork and picks up whatever has settled inside it. On the coldest nights, down around 23 degrees, the furnace cycles more often, which means more air moving through the system and more of that buildup getting stirred loose.
That buildup restricts airflow through the ducts, and a furnace pushing against restricted airflow works harder to heat the same house.
- 7 months
- October through April, your furnace pushes air through your ducts
- 5 months
- May through September, your air conditioner does the same
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NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There's no fixed schedule that fits every home. If anyone in the house has allergies, or you've had work done that stirred up dust like a furnace replacement, cleaning sooner makes sense. Homes with pets or a recent renovation tend to need it more often since more gets pulled into the return air. A contractor can look at your ducts and tell you what they're seeing.
- Is air duct cleaning worth it?
- It's worth it when there's a real reason behind it, not just as routine maintenance. If you see dust building up fast after cleaning, notice a musty smell when the furnace or air conditioner runs, or had rodents or a leak that got into the ductwork, cleaning solves a real problem. Without one of those signs, it won't do much for your air quality or your utility bills.
- What does air duct cleaning involve?
- A contractor connects a vacuum to the duct system to pull air through it while agitating the inside of the ducts with brushes or air whips to knock dust loose. Every supply and return duct in the house gets cleaned this way, along with the grilles and registers. The furnace or air handler itself, including the blower and coil, usually gets attention too since that's where a lot of the buildup starts.