Agree - and given the locality (i.e. there is someone using heat/hotwater right there), it would make sense to use it as soon as possible. If you didn't have l

Agree - and given the locality (i.e. there is someone using heat/hotwater right there), it would make sense to use it as soon as possible. If you didn't have locality, the water heater approach probably make more sense -- i.e. Your washing machine, dishwasher, which tend to hold on to hot water and then dump it at the end of the cycle.