Hello! I’ve just moved into my first flat on my own and am not sure how to turn the heating or the hot water on! I have a separate hot water tank and boiler in the airing cupboard (see pics), sorry this is probably a really obvious question but what’s the difference, and how do I turn hot water on without the heating also coming on? I’ve just turned all the switches to on and the heating has come on but hot water isn’t coming out of the taps, I’m not sure if this is because it takes some time to heat in the cylinder? Any wisdom welcomed because I’m totally clueless