Furbnow - UK's leading home energy renovation company

Step 1 — Your home

Which best describes it?

We've modelled the common off-gas archetypes in Gloucestershire. Pick the closest match.

A Cotswold stone cottage typically has solid stone walls around 500–600mm thick. They look lovely, but heat escapes through the fabric roughly 2–3× faster than a modern home — which is why oil bills feel punishing.

Step 2 — Your oil use

What are you spending?

Adjust these to match your own use. The typical bill for a Cotswold stone home sits between 2,500 and 3,500 litres a year.

Litres per year2,800 L

Price per litre125p

Your oil bill

£3,500

Useful heat

24,633 kWh

If oil hits 160p

£4,480

UK heating oil averaged around 118–136p/litre in April 2026, and peaked at 137p in March 2022. Prices move with global crude, OPEC policy, and the strength of the pound — so this volatility isn't a glitch, it's the system working as designed.

Step 3 — Your options

What could you switch to?

Three realistic paths, honestly costed. Toggle the electricity rate to see how tariff choice affects the numbers.

Stay on oil

Exposed to prices

No cost today, but fully exposed to price swings for the next 10–15 years. Plus a new boiler when yours fails — typically 10–15 years.

Running cost / year£3,500

Next boiler replacement£4,500–6,500

Price riskHigh

Air source heat pump

Best fit for most homes

Produces 3+ units of heat per unit of electricity used. On a heat pump tariff, the running cost is well below oil even at today's energy prices — and the £7,500 BUS grant takes a big bite out of the install cost.

Running cost / year£1,001

Indicative install£16,000–22,000

After £7,500 BUS grant£8,500–14,500

Annual saving vs oil£2,499 / yr

Payback (net of grant)~4.6 years

Air-to-air heat pump + direct electric

Niche

Cheaper to install, also cools in summer. But it doesn't heat hot water, and it isn't eligible for the BUS grant. Works best in well-insulated homes or as a stepping stone.

Running cost / year£1,913

Indicative install£6,000–10,000

BUS grantNot eligible

Annual saving vs oil£1,587 / yr

A solid-wall home usually needs some fabric work alongside the heat pump — internal wall insulation, loft top-up, and draught-proofing — so the system can run at a sensible flow temperature. That's what gets you the running costs shown above.

Ready for a proper answer?

The numbers above are modelled from your home's archetype. To know what your home actually needs — and what it'll actually cost — we need to survey it.

A Furbnow build pack includes: a detailed home survey, a room-by-room heat loss calculation, a system design tailored to your house, fabric recommendations in priority order, a full specification you can tender out, and a realistic cost plan. From £500.

Get a Furbnow build pack →Book a chat first

Worried about the price of oil?

Which best describes it?

What are you spending?

What could you switch to?

Ready for a proper answer?