Duct Cleaning in Chaska, MN
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Eight months of heating pushes air through your ducts
Your furnace runs October through May here, close to eight months of the year. That is a lot of air moving through the same ductwork, and every pass carries dust, pet hair, and whatever else is in the house into the trunk lines and branches. On the nights that average 9°F, the furnace is running longer and more often, so more air moves through, not less.
Carver County has also seen 36 winter storms and 51 damaging wind events over the past ten years. Storms like that can knock out power, and 13% of Minnesota households went at least a day without it last year. When the furnace stops and starts back up, or when a home sits closed up during an outage, dust that settled in the ducts gets stirred loose again the next time air moves through them.
- 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?
- Most homes do fine having their ducts cleaned every few years, though there is no fixed schedule that fits every house. If anyone in the house has allergies, or pets shed into the return vents, or you just finished a renovation that kicked up drywall dust, do it sooner. Homes here run the furnace October through May, so that system is pulling air through the ducts for eight months straight, and a contractor can look at yours and tell you if it is due.
- Is air duct cleaning worth it?
- It depends on what you are hoping it fixes. If dust keeps settling back on surfaces right after you clean, or a room never seems to get enough airflow, clearing the ducts can help with that. It will not lower your heating bill or cure allergies on its own, so a contractor can look at your actual ducts and tell you whether cleaning is what your house needs.
- What does air duct cleaning involve?
- A contractor connects a vacuum to the duct system and uses brushes or compressed air tools to knock loose dust and debris from inside the metal, then pulls it out through the vacuum. Every supply and return vent in the house gets covered, along with the main trunk lines. The furnace or air handler itself, including the blower and coil, usually gets cleaned as part of the same visit since that is where the air moves through on its way to the ducts.