How-to2 min read24 September 2026

How to Cut Your Winter Bills: Compare Heating Costs Now

With heating oil at 100.4p/litre and gas at 6.04p/kWh, knowing which fuel saves you the most is crucial. Here's how to compare and switch.

As autumn settles in, UK homeowners face a critical choice: which heating fuel will power them through winter 2026–27 at the best price? Current rates show significant variation, and making an informed decision now could save you hundreds of pounds.

Know Your Options and Current Prices

Your heating fuel choices typically break down as follows:

  • Mains gas: 6.04p/kWh (Ofgem cap) — the cheapest option for most connected homes
  • Heating oil: 100.4p/litre (ex. VAT) — essential if you're off-grid
  • Electricity: 24.5p/kWh (Ofgem cap) — used for direct heating or heat pumps
  • Wood pellets: 7.2p/kWh — renewable, but requires storage and suitable equipment

Why Price Per Unit Matters More Than You Think

Don't just look at the headline price. A litre of heating oil and a kilowatt-hour of gas aren't directly comparable because they deliver different amounts of energy. One litre of heating oil contains roughly 10.2 kWh of energy, making its true cost approximately 10.2p/kWh equivalent — substantially cheaper than electricity but slightly higher than mains gas.

Step-by-Step: How to Compare Your Options

1. Check what you're currently using

Review your last three heating bills. Are you on mains gas, oil, or electricity? How many kWh did you consume last winter?

2. Calculate your annual consumption

If you used 12,000 kWh of gas last year, multiply by 6.04p to see your annual bill (~£726). If you used 1,500 litres of oil, multiply by 100.4p (£1,506).

3. Explore alternatives in your area

Not all fuels are available everywhere. If you're off-grid, compare heating oil suppliers. If you're considering switching from oil to electric heat pumps, get a surveyor's quote first — installation costs are significant upfront.

4. Factor in equipment efficiency

Older boilers waste 15–20% of fuel. Modern condensing boilers recover heat from flue gases, operating at 90%+ efficiency. Upgrading an ancient system could offset higher fuel prices through better performance.

5. Use comparison tools

Compare mains gas rates, electricity prices, and wood pellet costs using HeatYourHome.uk to see what suppliers are offering in your postcode.

The Renewable Angle

With energy production and waste becoming global concerns, wood pellets remain an attractive option — but only if you have secure, dry storage and a compatible stove or boiler. At 7.2p/kWh, they're competitive with gas and far cheaper than direct electric heating.

Take Action This Week

Don't wait until November when demand peaks. Gather your last three bills, calculate your annual consumption, and compare quotes today. Lock in rates before winter prices typically climb. Even switching suppliers on the same fuel can yield £100–200 in annual savings.

Related Articles