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3

A cheap option, is hanger strap. It's available in both metal and plastic, and in various sizes.


1

I like PVC strap tape. You can hang it about anywhere with about anything. It doesn't kink up like metal, and it isn't sharp.


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If you don't care how it looks, just put some screw eyes in the wall above where you want the duct work to be, and loop some wire around the duct work and attach both ends to the screw eye. Quick and easy. As an aside comment, if there is a significant difference in temperatures between the air going through the duct work and the air outside, you may ...


3

Pa (Pascal) is a unit of pressure (air or hydraulic pressure). It's a very tiny unit, usually used in the thousands or millions. "inch" in this context is "inches of water", another unit of pressure. This one's easy. Get a glass of water and a clear straw. Suck on the straw just enough that the water comes up 3". Or blow hard enough it goes down 3". ...


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Duct cleaning is IMHO a scam as mentioned in other answers, but sealing the ductwork is absolutely beneficial in terms of efficency. Air leaks are one of the leading causes of lost efficiency.


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It depends (but likely no). IMO, duct cleaning does have it's place in today's world (pet hair/allergen reduction for example). However, it likely only needs done once every 10-15 years in most cases. Duct sealer is basically like the sealant you can put in a bicycle tube to fix a leak except that since ducts aren't a completely closed system like a tube, ...


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no - you are being offered a great big glass of snake oil duct cleaning is already a huge scam. EPA and health canada have already for years been warning people about the risks. this is just a new twist on an already deceptive industry



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