Electric tankless water heaters draw a massive amount of power. A water heater with a tank is actually quite insulated and efficient. If I am not home and basic

Electric tankless water heaters draw a massive amount of power. A water heater with a tank is actually quite insulated and efficient. If I am not home and basically use no hot water it can go days without dropping more than a couple degrees. With the heat pump I think I spend about $7 a month on my heat pump water heater.