Where should I be asking the below question? I have a electric cylinder water heater. It’s a 315 litre one, built in 1999 by Vulcan – model 681315. It gets power from 10.00am ’till 5.00pm or so. The temperature of the water varies, and I’m not sure what’s causing it. The water’s temperature appears to be something to do with the amount of hot water being pulled from the system. If I open the hot water tap on the shower, the water is tepid – and remains so forever. If I open the hot water tap on the bath as well for ten seconds, the water out of the shower heats up to a nice warm temperature, and stays at this nice warm temperature. (There’s a hot and cold tap on the shower – no mixer). In the other bathroom, we have two showers. Turn on the hot water for
