re: #310 Backwoods_Sleuth

Hot water has returned (without any bursting of pipes)!

YAY!!!

When I still had a house in western Pennsylvania my kitchen hot water pipe was prone to freezing. Ran across the top of the poorly heated garage and then up an exterior wall.

It would freeze when the cold water pipe next to it would not. I presume that the pipe had more calcium scale than the other and was the reason for the discrepancy. 40 year-old house with fairly poor exterior insulation compared to modern construction.