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Sealing a Crack In A Metal Exhaust Duct From A Gas Fired Hot Water Heater ?
Hello:
Just found a crack/tear in the 3" diameter round sheet metal duct that funnels the exhaust from a gas fired water heater (the typical cylindrical type) to the main duct going to the chimney. Probably about 1 to 2 inches in length. Looks like it is a big job to replace the duct. Was wondering - Is it code permissible to place a conforming metal patch, perhaps held on with two pop-rivets, over the cdrack ? That sure seems to me like a simple approach, but before I get a contractor in I wanted to ask here. If a good idea, and code allowable, should some kind of "gunk" be placed under the metal patch also ? How about that metal duct tape ? It certainly would seal it, but could this be considered a "permanent" fix ? Any other suggestions would be most appreciated. Thanks, B. |
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