[masraum]

Originally Posted by juanbenae

i keep a radiator type electric heater in my well house with a programable timer that starts it around 11PM and it runs till 7AM. Even though my pipes are sch 80 PVC and insulated sleep better with the heater on when the bitter cold shows.

the radiator type heaters are a very safe electric option compared to anything that glows red to heat.

It's 20º now (1050pm). It dropped below 32º at about 445pm. It's supposed to bottom out at 16º. The next time the temp is supposed to get above freezing is noon on Sat. < edit > since I started typing this response, the temp has dropped to 19º, LOL! < /edit >
The red line is the temp. The thick horizontal blue line is 32º

Originally Posted by Arizona_928

Fun fact.

The water is supercooled in the pipe and the pressure the pipe pushes on the water is what keeps it from freezing. Thicker pipe leads to the water being able to stay liquid at a lower temp under the freezing point.

freezing point at sea level and standard pressure is 32ºF. freezing point at sea level and 145psia (160psig) is 31.88ºF. Since my pump switch is set to kick on at 40 and off at 60, I'm guessing the freezing point of the water in my pipes is maybe 31.96ºF. I'm not sure how much help that is.