Duct Cleaning in Hot Springs, SD
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Nine months of heating pushes a lot of air through your ducts
Your furnace runs September through May here, nine months out of the year. That is most of the year moving air through the same ductwork, night after night, with winter lows averaging 14°F from December through February keeping the system on that much longer to hold a temperature.
All that running time gives dust and debris more chances to settle in the ducts instead of blowing through. With 154 damaging wind events recorded over the past ten years, homes here also see a lot of outside air pushed in around doors and windows, and that air carries dust in with it. Over nine months of heating, that buildup can start to show up as dust settling faster in the house or air that does not move the way it used to.
- 9 months
- September 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's no fixed schedule that fits every house, but a few things point to timing. If anyone in the house has allergies, or you have pets shedding into the return vents, cleaning sooner rather than later makes sense. Worth a look too if you just moved into a house where you don't know the history, or had work done on the ductwork itself. A contractor can tell you what the ducts actually look like inside before you decide.
- Is air duct cleaning worth it?
- It depends on why you're considering it. If dust keeps settling back within a day or two of cleaning the house, or you can see buildup right at the vent covers, cleaning solves a real problem. If you're doing it just because it seems like routine maintenance, it won't lower your heating bills or make your furnace last longer, so weigh it against what's actually bothering you.
- What does air duct cleaning involve?
- A contractor connects a vacuum system to the ductwork and uses brushes or air tools to knock loose dust and debris from inside the duct walls, then pulls it out through the vacuum. Registers and grilles get cleaned too, along with the return vents. On a full job, they'll also check the coil and blower housing, since dust builds up there the same way it does in the ducts.

