YES you can install an aftermarket electric heating element in the water heater tank drain hole.
Kits are available.........Hott Rod & Lightning Rod are two that are available.
Remove drain plug, install heating element, hook up t-stat and plug it into a 110V AC outlet.
Will need to provide an outlet for the 110V AC power. Kit has everything else.
Two things to be aware of:
MFG. will VOID warranty if used
IF you have a Suburban Brand water heater you will need to get the Kit with one that provides an anode rod on it. There are much smaller than OEM rod so they will have to be checked/changed more frequently
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31