Thermopex and freezing

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nwomatt

nwomatt

Member
Oct 12, 2012
65
northwestern ontario
I have 150' between my shop where boiler is and house. I used 1" thermopex buried probably 30-36" down. The trench goes under the driveway and I know the frost line here goes way below the pipe. If i leave in the winter and switch to backup lp furnace in house will the lines freeze? Maybe just leave the main circ on or put it on a timer.
 

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