We bought an new (very old) house a year or so ago. It’s have a new valiant system boiler installed in the past couple of years but the rest of the system is fairly mature. DHW is via an invented cylinder, I’d like to improve hot water pressure to am looking at options. We have a couple of open fires, the boss says she’d like a multi fuel stove in one of them. I’m planning to fit an unvented cylinder or thermal store in the cellar because the pipe runs would be easy/short. Does anyone have much experience of using multiple heat sources? As a means of future proofing it seems to make sense to have a heat input for some form of renewable. Are heat stores a white elephant? Or do they work well? Would you bother to tie a stove into a heating system if it were your house?