The basic problem with trying to install a more efficient hot water heater is that you don't pay much for heating hot water here in the Villages each year so any "newer" technology system will not pay for itself in a reasonable amount of time. Also, as most have said, the cheapest way to replace your hot water heater is to put the same unit in so any plumbing changes will be minimal. For 2 people don't go and increase capacity from 40 to 50 gallons since you won't need it and all you will be doing is heating more hot water. Just get the best 12 year Rheem or your favorite brand heater that has the highest efficiency like the Rheem Model# XE40M12CS55U1, Gladiator 40 Gal. Medium 12 Year 5500/5500-Watt Smart Electric Water Heater with Leak Detection and Auto Shutoff. So why this particular unit? Because it's a 40 gallon heater with higher wattage coils so the recovery time is like a 50 gallon heater. Also, this unit has leak detection which turns off the water in case you get a leak. This is the most important feature because most people don't pay attention to their water heater and never know if there is a leak. If this tank or your plumbing leaks, it turns off the water and sends you a push notfication to your phone so you can address it. Everything on this tank is controllable via an app on your phone including stats on your water usage and energy. If you are handy, you can remove the anode rod and replace it with a powered anode rod such as the Corro-Protec that can be purchased on Amazon, and your tank will last many years with very little maintenance. If you have a whole house water filter like the one from Nova filters or a water softener, even better. One last thing. Continuous hot water heaters like what the Villages installs in areas with Gas is basically a cost savings for the developer. Unless you have unusual needs, there is no way a two person family here in the Villages is going to need continuous hot water. You still have to clean those units yearly just like you need to drain some water from your tank heater yearly. There is no significant benefit for us with those water heaters.
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