Duct Cleaning in Allegan, MI
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Eight months of heating fills your ducts with more than dust
Your furnace runs October through May here, close to eight months of the year, pushing air through the same ducts night after night. Every cycle carries a little more dust and pet hair, and it settles along the way. On the coldest nights, when lows drop near 20°F, the furnace runs longer and more often, moving even more air through ducts that are already carrying a winter's worth of buildup.
Michigan sees its share of winter storms and high wind, and power interruptions come with them. When a furnace sits off during an outage, then kicks back on, it can stir up whatever has settled in the ductwork since the last time it ran, and send it back out through the vents.
- 8 months
- October through May, your furnace pushes air through your ducts
- 3 months
- June through August, your air conditioner does the same
NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There is no fixed schedule that fits every home, so watch for the signs instead. Clean sooner if dust is building up fast around the vents, if someone in the house has new allergy trouble, or if you have had rodents or a leak in the ductwork. Homes here run the furnace eight months a year, October through May, which pushes more air through the ducts than a house that heats for only a few months. A contractor can look at your ducts and tell you whether they need it now.
- Is air duct cleaning worth it?
- It helps most when there is a clear reason for it, not on a fixed schedule. If vents are coated in dust, if you just finished a renovation, or if you can see mold or pest debris in the ducts, cleaning solves a real problem. If none of that is happening, the return is smaller, since ducts mainly move air rather than collect the dust people picture. A contractor can look at your system and tell you whether it is due.
- What does air duct cleaning involve?
- A contractor uses a vacuum system and brushes or air whips to knock dust loose from inside the ducts and pull it out before it resettles. Every supply and return line gets cleaned, along with the grilles, the plenum, and usually the coil area near the furnace or air handler. The filter gets replaced or cleaned as part of the job, since it is what catches dust going forward. The exact time it takes depends on how many ducts and returns the house has.