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I moved house a few months ago and am slowly but surely figuring out its nuances. Wouldn't it be wonderful if houses came with wiring/plumbing diagrams that showed how everything connected? Anyway...
I've got what I understand to be a pretty standard gravity-fed vented heating system, with gas boiler and hot water tank in the airing cupboard and cold+expansion tanks in the roof. The boiler was fitted about seven years ago and it looks to me like the fitter stole the electricity supply for the immersion and used it for the heating and boiler controls!
Tracing the cable back from the immersion, it goes into a time clock and from there into fused isolator and that's where it ends. Below this is another, a 2.5mm cable feeds a newer isolator for the boiler and heating controls. The immersion, timeclock and old isolator are dead having been bypassed.
My question is this: why would you bypass the immersion when fitting a new boiler? It's not unusual to have an immersion supplementing gas is it?
Ultimately I'm thinking of reconnecting the immersion and using cheap Economy 7 electricity to heat the water. Is this a Bad Idea?
I've got what I understand to be a pretty standard gravity-fed vented heating system, with gas boiler and hot water tank in the airing cupboard and cold+expansion tanks in the roof. The boiler was fitted about seven years ago and it looks to me like the fitter stole the electricity supply for the immersion and used it for the heating and boiler controls!
Tracing the cable back from the immersion, it goes into a time clock and from there into fused isolator and that's where it ends. Below this is another, a 2.5mm cable feeds a newer isolator for the boiler and heating controls. The immersion, timeclock and old isolator are dead having been bypassed.
My question is this: why would you bypass the immersion when fitting a new boiler? It's not unusual to have an immersion supplementing gas is it?
Ultimately I'm thinking of reconnecting the immersion and using cheap Economy 7 electricity to heat the water. Is this a Bad Idea?