Yep, cold and water can be a PITA.
Dan - fyi for you guys down South - what I used years ago on a problematic-hard-to-heat wall in a custom home was heating wire for copper pipe. Back then, we saw lots of -40 temps, and my Mom had a problem with one specific wall.
The wire is designed to be wrapped around copper pipe, and is thermostatically controlled. Can be buried in a wall. Haven't looked for it in years, but it still may be around. Won't do you much good on plastic pipe though.
Drives some people crazy to do it, but a good thing to do in areas that aren't used to real cold is leave the cold water tap running overnight - you don't need much, just a trickle. If the house is occupied during the day, normal water use may keep the pipes open, but it is often the +/-8 hours overnight when pipes freeze. If a house has limited (by Canadian standards) insulation, leave the water trickling throughout the cold snap. Any cost for water is minor compared to repairing burst pipes.
Rgds, D.
Dan - fyi for you guys down South - what I used years ago on a problematic-hard-to-heat wall in a custom home was heating wire for copper pipe. Back then, we saw lots of -40 temps, and my Mom had a problem with one specific wall.
The wire is designed to be wrapped around copper pipe, and is thermostatically controlled. Can be buried in a wall. Haven't looked for it in years, but it still may be around. Won't do you much good on plastic pipe though.
Drives some people crazy to do it, but a good thing to do in areas that aren't used to real cold is leave the cold water tap running overnight - you don't need much, just a trickle. If the house is occupied during the day, normal water use may keep the pipes open, but it is often the +/-8 hours overnight when pipes freeze. If a house has limited (by Canadian standards) insulation, leave the water trickling throughout the cold snap. Any cost for water is minor compared to repairing burst pipes.
Rgds, D.