Guest
The only way this will save you significant $$$ is if you have a “time of use” meter from your utility company. I have an 80 gallon tank and heat it overnight at the lowest rate of roughly $.02/kilowatt hour. My wife does laundry on the weekend when the rates are at the lowest so I leave it on 24 hours on Sat and Sun. I never run out of hot water and I estimate I save at least $20/month or close to $250/year.
