Damage to HVAC duct after car crash

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Traveller
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Damage to HVAC duct after car crash

Post by Traveller » Mon Feb 04, 2019 1:04 pm

I have a two-story single family home with no basement. It's all electric. The low level was nearly demolished when a car crashed into my house. Power and water have been restored so I am able to live upstairs. But there will be VERY major construction going on for a several weeks. There is only one return duct in the low level which was basically cut in two. I am concerned about preventing the sanding dust from migrating throughout the house. So I am asking what would be impact if I covered/sealed that return duct in the low level? Would that cause further problems?


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A. Spruce
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Re: Damage to HVAC duct after car crash

Post by A. Spruce » Mon Feb 04, 2019 1:59 pm

I would recommend consulting with a local HVAC shop. The fan inside the unit is designed to have a certain amount of air flow, if you cut half of that off, it can adversely affect the system. A local shop doing an inspection can tell you if blocking off the downstairs portion of the return will have any deleterious effects.
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Shannon
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Re: Damage to HVAC duct after car crash

Post by Shannon » Mon Feb 04, 2019 6:43 pm

I would attach a furnace filter over the opening to help with dust but still allow some air flow. Also changing your furnace filters more often during the project will help.
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