So after measuring the water temp (about freezing) I'm thinking that a "tempering" tank before the electric hot water heater might be a good idea.
Its a 50g water heater, no problems with getting enough hot water
Its set to 120 degrees
If I wanted to install a "pre-heat" tank of sorts what would be a good tank to use? My basement in single digit weather is around 55. Most of the time its 60-63
Heating that water from 32-55/63 must take a bit of energy