Ok, we currently have a chuggy old coal-fired central heating boiler (Franco-Belge) which is very inefficient and costs a fortune to run. Last winter we spent a minimum of £35/week on coal, plus the electricity to run the pump. And all summer we've had to use the immersion heater, which I think is a waste.
The other problem with it is that since we had double glazing installed the house often gets far too hot - we're SW facing and so it warms fantastically on a sunny day, even in the depths of winter - and of course we can't turn off the boiler. Passers-by must think we're mad wearing sleeveless vests and thin trousers on a cold winters evening

Apart from the boiler we're all electric. We have found a supplier for wood fairly close by. LPG, oil, propane etc are not options.
So, having lived with it for a couple of years, we've come to some conclusions and have the money (so we need to work quickly while we still have it

What we've decided, more or less, is to get rid of the boiler and immersion heater. Replace these with a central heating only (something like the Heatrae Amptec - we'd need two) to run the central heating on a low thermostat - 16-18 degrees C.
Then we replace the boiler with a multifuel stove - we'd still need coal occasionally to keep it in overnight and when it's particularly cold. But we're looking at one with an oven so that when it's lit, or in the event of a power cut, we can still have warm food/drinks. We also have another stove (an old Portway Tortoise) for the other end of the building, to keep the whole house warm.
We'd replace the immersion heater with undersink water heaters so we only heat water that we're using. We'd need several, but I think they'd pay for themselves fairly quickly.
I think that these measures would drastically reduce our electricity use, which at the moment is huge because everything we have is so inefficient.
My ultimate plan is to produce at least some of our own electricity - we're perfectly placed for wind power, I'm just waiting for planning regs to be eased. And being SW facing we could also have solar PV. Both of these will have to wait so we need a system that will be compatible with any future plans.
Does any of that seem reasonable/ make sense?
Thanks folks.