Hard to find hybrid electric hot water heater. They stop selling GE. Rheem Not Sold In Stores Why are hybrid electric hot water heater not sold at big box stores? What is the future for hybrid electric hot water heaters?
With and annual estimated operating cost savings of about $300 it would take over six years to recover the cost, and considering the life expectancy of 10 years which can be reduced by the quality and volume of water it may not even do that. Also, I believe the cost savings are exaggerated. It does not take into account the amount of heat removed from the home to heat the water which needs to be replaced by the home heating system, any service costs, or the loss of efficiency as it ages.
I would point out the Homedepot does advertise a unit, but I am not familiar with the brand.