Tankless Water Heater - does it waste water?
Thinking about getting a tankless (Girard?) and the tech we spoke to said that it wastes about 2 gallons of water just by turning on the hot water to get it hot, and that once it cools down, it wastes...
Forum Discussion
mrkoje wrote:
... vs the tank constantly using energy to maintain a temperature across 50-100 gallons.
I have yet to see or hear about a water heater that "constantly" uses energy to maintain temperature. The tanks are extremely well insulated and the heater seldom cycles on when not in use.
Back in the '80s, a co-worker at an electric utility connected a chart recorder to his water heater to check this out. Every night (after initial recovery), in the period of 11 p.m.-7 a.m., the heater cycled on ONCE for no more than 5 minutes. Five minutes in 8 hours is a far cry from "constantly".
