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Replies: 4
Views: 6,428
Posted By mamaison

Arrow Rusty ducts

There is nothing wrong with the crawl space....it is well ventilated ....We live in Sunnyvale California (San Francisco South Bay) all the houses are built this way. The reason it is rusty is...
Replies: 4
Views: 6,428
Posted By mamaison

Question Rusty ducts is it a problem?

We are thinking replacing our old (36 years old) ductwork mainly because it looks rusty on the outside. The ducts are round sheet metal and are in a ventilated crawl space. The insulation is...
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