Quick fix to avoid Frozen Pipes will it work?

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Old 01-03-14, 07:39 AM
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Quick fix to avoid Frozen Pipes will it work?

With the cold snap here in Chicago, I was wondering if I can run a flexible plastic hose from my furnace vent, in the upstairs bathroom, to small open in the dry wall
where my plumbing supply is located to heat up the area behind the wall. After some work was done this past year I realized the is a void between walls from the crawlspace to the attic. No insulation. I will have to fix this when the weather breaks. To avoid a frozen pipe(temporarily) I was hoping to get some warm air in the wall.
I can't get to the space to use heat tape. If I try to insulate this area the loose fill will fall down the wall to the crawl space. Thanks uin advance
 
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Old 01-03-14, 08:02 AM
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Warm air naturally convects upward. Is there heat in the crawlspace? Ductwork?
 
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Old 01-03-14, 09:14 AM
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Just cut open the wall and expose the pipes. The warm air in the room will keep the pipes from freezing. If they are behind a cabinet, you might have to leave the doors open.
 
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Old 01-03-14, 09:26 AM
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run a pencil stream from all the faucets hot and cold... Moving water has a hard time freezing... That is your best defense.............
 
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Old 01-03-14, 11:18 AM
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Thank you for all of the reply.
1. There is no heat in the crawl. The duct works runs through it, but no heat.
2. Yes I have a baseball size hole in the wall near the supply.
3. I will leave the vanity open.
4. I will leave the water run - trickle
5. An easier solution also might be to hang a trouble or clamp light in the crawl
up in the void area for a few days. Just to create a small amount of heat
that should rise.
 
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Old 01-03-14, 12:23 PM
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Not a bad idea. Be sure to keep it away from combustibles.
 
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Old 01-03-14, 07:04 PM
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run a pencil stream from all the faucets hot and cold... Moving water has a hard time freezing... That is your best defense.............
This is your best bet. I lived in a house where I had to fight frozen pipes many years ago, been there, done that, no extra heat required.
 
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