Plumbing Questions? Ask a Plumber for Answers ASAP
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The best and safest thing you can do is turn your furnace heat way up temporarily as long as you can stand it. 80-85 degrees. Typically the main waterline run close to the duct work and hopefully the heat will transfer enough to thaw you out. Also turn on a faucet or two so you know when it thaws. I used to do this when I lived in my mobile home in Northern WI.