Oil or gas? - installation costs.

Well, you can, but it probably wouldn't be permitted.

And if you had gone for a capped rate, then in effect, you could have stored case.

Nope, it can be pumped without problem. AIUI, oil boilers can be slightly more expensive.

Unless you've got a large amount of space, storing say 2 years of oil may use a prohibitive amount of space.

I would say storing 2 years' worth is very doable. Our tank is a 2500 litre, and that lasts us around 14 months (3 bed stone house, moderate insulation). We could easily add a second 2500 litre tank.

I don; think there is much difference in boilers. You have things like fire valves to add in, and some nasty 10mm pipework.

However now that north sea oil and gas is a fading memory, its likely that oil and gas prices will synch and stay that way..

Dear me. And not only that, you may have a deal of trouble filling it up, convincing customs and excise that 25,000 litres of kerosene out to be charged at the domestic VAT rate...not industrial.

Far better to take out some covered warrants on oil price rises..

Must be a small house then. I use more than twice that on fully specced insulated 6 bedroom house..

It is quite small - footprint is 8m x 8m. Loft is heavily insulated, all windows double glazed, quite draught-proof.

And you get 3 beds in that? I'm imagining a converted water-tower, or one of Mr Prescott's "affordable" fully-fitted shipping containers, sorry, key worker housing.

Owain

Why worry? just fill up over two or more deliveries so you don't trip the commercial threshhold

It's a 1930's farm house in Devon. There are 2 bedrooms ~ 3.5x4.5 and one 3x3. The bathroom is also ~3x3. That's all there is upstairs.

Ah Devon. A few degrees warmer n average than our shivering East Anglian winters..