Yep - UK, and neither of those things are common over here (I don't know of any at all). How would the shared heating work, financially? Over here our energy

Yep - UK, and neither of those things are common over here (I don't know of any at all). How would the shared heating work, financially? Over here our energy costs are very high so a lot (most?) of our energy bills go on heating and hot water; if you want to save money, you put a jumper on and have a shower rather than a bath. With shared heating you don't have this option, but do the overall savings from greater efficiency (an assumption) make this a moot point?