Quote:
Originally Posted by HobieMarty
.....She told me that she didn't use any hot water at all yesterday and so I came to the conclusion that the water in the lines between the water heater and the faucets had cooled and had frozen since no water was being moved through the pipes at all over a day and a night of freezing temperatures. ....
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I have "instant hot".
Continuous circulation of the hot water side.
It's awesome to be able to turn on the shower and just step right in. I'll never have a home without it ever again.
During Icemageddon we noticed a pattern. The homes in my subdivision that had it had no frozen pipe issues, it was only the homes without it.
Our conclusion was since hot / cold side plumping for the most part runs in parallel the ambient from the hot side inside the walls kept things warm enough to protect the cold water pipes.
Can be retrofit to existing systems pretty cheaply.