How to protect a tankless water heater from freezing temperatures
Channel: Brian Greul
Date: 2021-04-11

I live in Houston, Texas.  We normally don't see extreme cold, and certainly not what we saw in February of 2020.  Our houses are built to reject heat, not keep it in.  Part of good design here is keeping heat sources out of the house.  So my Tankless water heater lives outside, as do many other people's here.  I had to come up with a solution to temporarily protect it from freezing temperatures, and this insulated box made from styrofoam sheets is what I used.