How to Cut Your Heating Bills by Switching Fuels in 2026
With oil prices falling and solar adoption rising, now's the time to review your heating fuel. We show you how to compare your options.
Energy costs remain a major household expense, but fuel choice matters more than you think. If you're still burning heating oil or relying solely on mains gas and electricity, you could be overpaying. Here's how to evaluate your heating options and make a smart switch.
Know Your Current Costs
Before comparing alternatives, calculate what you're actually spending:
- Heating oil: Currently 97.6p/litre (ex. VAT) — work out your annual usage and multiply
- Mains gas: 6.04p/kWh under the Ofgem cap — check your bill for typical consumption
- Electricity: 24.5p/kWh (Ofgem cap) — this is the most expensive option per unit
- Wood pellets: 7.2p/kWh — a competitive alternative if you have suitable heating equipment
Write down your current fuel and annual spend. This becomes your benchmark.
Assess the Market Shift
Recent developments favour switching:
Oil prices are sliding on hopes of improved US-Iran relations, suggesting further cost relief for heating oil users — but volatility persists. If you rely on oil, locking in a competitive rate now could protect you from future spikes. Compare heating oil prices to see current supplier rates in your area.
Meanwhile, mains gas remains stable at 6.04p/kWh under the Ofgem cap, offering predictable costs. If you're on a volatile fixed contract, switching to a capped tariff may reduce exposure. Check mains gas deals to compare.
Consider Renewable Alternatives
Solar panel adoption is accelerating as homeowners chase long-term savings. While upfront costs are significant, solar offsets daytime electricity demand, reducing reliance on the 24.5p/kWh grid rate. Wood pellets at 7.2p/kWh are another competitive option for homes with suitable boilers — and they're carbon-neutral.
If you're considering renewable heating (air source heat pumps, biomass boilers, or solar thermal), factor in installation grants and long-term savings over 10+ years.
Your Action Steps
1. Calculate your annual spend across all heating fuels you currently use
2. Identify your fuel type — oil, gas, electricity, or a mix
3. Visit our comparison tools to see current rates for heating oil, mains gas, electricity, or wood pellets
4. Request quotes from suppliers — lock in rates if prices are favourable
5. Explore renewable options — consult installers about heat pumps or biomass systems for long-term savings
The Bottom Line
No single fuel is always cheapest. Regional availability, boiler compatibility, and your consumption pattern all matter. Use this moment — with oil prices easing and renewable costs falling — to review your heating strategy and switch to a cheaper, more stable option.