Duct Cleaning in Nantucket, MA
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Step 1 of 3: Equipment
Eight months of heating runs a lot of air through your ducts
Your ducts move air from October through May here, close to eight months of the year. On the nights that average 28°F, the furnace cycles on and off again and again to keep up, and every cycle pushes more air, and whatever is riding in it, through the same duct run.
That much cycling means dust and lint settle along the duct walls a little more with each pass. Over enough winters that buildup narrows the path the air has to move through, so the furnace works harder to push the same amount of heat into the house.
- 8 months
- October through May, your furnace pushes air through your ducts
- 2 months
- July through August, your air conditioner does the same
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NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- A contractor can check your ducts and tell you if there is enough buildup to justify cleaning them. It depends more on what is actually inside the ducts than on the calendar. If anyone in the house has allergies, or you have had work done that left dust behind, like a duct replacement or an attic renovation, it is worth having them checked sooner rather than later.
- Is air duct cleaning worth it?
- It depends on what is going on in your ducts. If you can see dust building up around the vents, or someone in the house has started having more allergy symptoms indoors than outdoors, cleaning is worth it. If the ducts look fine and nobody is having breathing trouble, you likely do not need it yet. A contractor can look inside the ducts with a camera and tell you whether there is buildup worth removing.
- What does air duct cleaning involve?
- A contractor connects a vacuum to the duct system, then agitates the inside of the ducts with brushes or air tools to knock loose dust and debris so it can be pulled out. They will also clean the supply and return vents, and check the coil and blower if those are part of the job. The whole system gets sealed back up before the vacuum is disconnected, so dust does not escape into the house during the process.