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Mike the plumber
Mike the plumber, Plumber
Category: Plumbing
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Experience:  Fifteen years in the residential service industry and new construction
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How long does it take for pipes to freeze in unheated houses?

Resolved Question:

H\In an unheated house, how cold and for how long does it have to be outside for frozen pipes to be a possibility?
Submitted: 6 years ago.
Category: Plumbing
Expert:  Mike the plumber replied 6 years ago.

Mike the plumber :

Hello

Do you have any exposed pipe outside? Are all your pipes inside?

JACUSTOMER-sx8jd2e1- :

All pipes are inside

Mike the plumber :

Basement, attic, or crawlspace?

JACUSTOMER-sx8jd2e1- :

Basement and attic

Mike the plumber :

Is the attic insulated? Are the pipes in the attic insulated?

JACUSTOMER-sx8jd2e1- :

No pipes in attic - attic is insulated

Mike the plumber :

Do you have running water?

JACUSTOMER-sx8jd2e1- :

There is running water - no faucets on right now

Mike the plumber :

If you can trickle hot and cold water on each faucet in the house then you will be fine. Running water is almost impossible to freeze

Make sure to run the HOT and COLD because HOT freezes faster than cold water

JACUSTOMER-sx8jd2e1- :

I am too far from house to go do that right now. I should add that the temperature today was approx 40 deg Fahrenheit. It will go down slowly to a low of 19 deg for about an hour or so and start climbing back to the low twenties before reaching a high of 30 deg tomorrow

Mike the plumber :

Once the temperature drops below 36 its susceptible to freezing within a few hours. If all the water lines are inside in an insulated house it will delay pipe freezing for a good while. However if you do have any exposed piping it will be the first to freeze and possibly burst upon thawing.

JACUSTOMER-sx8jd2e1- :

Thank you!

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