I life in a rural area so gas isn't an option.
I need to replace my oil tank , its got a small leak and therefore illegal. The boiler is over 30 years old and is situated in a boiler-room attached to the house and is very inefficient. If I bring the boiler indoors its going to need a lot of re-plumbing which is also 30 years old.
The electrical wiring is probably the same age and could also do with being replaced.
Does it make sense to ditch the boiler and the old central heating system and go to economy 7 or whatever is available?