I can't say I've noticed the bills being less since I got a combi boiler, but then again, gas must have gone up about three times and I don't think my bills have really gone up - and I love, love, love, the instant hot water all the time.
I don't get instant hot water something else I've broke no doubt
you don't? that's weird... is it switched on?
I've just gone to check my programmer. I can choose to have it 'on' or timed once or twice in a day or off It's set at 'off' - maybe if it's set at timed it doesn't give you instant hot water?