How to Switch Heating Fuels and Cut Your Winter Bills by 40%
Geopolitical tensions are pushing oil prices higher. Learn which heating fuel offers best value right now and how to make the switch safely.
Global energy markets remain volatile. Recent tensions in the Middle East are putting pressure on oil prices, which directly affects UK heating oil costs. If you're currently paying 90.1p per litre for heating oil, it's worth understanding your alternatives before winter demand drives prices even higher.
Compare Your Real Heating Costs
Don't assume mains gas is cheaper. Here's what you're actually paying right now:
* Heating oil: 90.1p/litre (ex. VAT)
* Mains gas: 6.04p/kWh (Ofgem cap)
* Electricity: 24.5p/kWh (Ofgem cap)
* Wood pellets: 7.2p/kWh
The trick is converting these to a common unit. Oil and gas prices vary wildly by region—your actual mains gas rate depends on your supplier and location, while wood pellets offer surprisingly competitive value if you have space for storage.
Which Switch Makes Financial Sense?
If you're on heating oil: Switching to mains gas (where available) typically cuts heating costs by 20-35%. Use our gas price comparison to find the best local rates. If mains gas isn't available, wood pellets at 7.2p/kWh beat oil when you factor in boiler efficiency gains.
If you're on mains gas: Unless you live in a remote area without mains supply, stay put. Your Ofgem cap protection is valuable. Don't switch to oil or electricity unless your bills are genuinely unaffordable.
If you're renting or in shared housing: Compare electricity rates first—it's the only fuel you can realistically switch without landlord permission. Consider a portable heater for your bedroom to reduce thermostat reliance.
The Practical Steps to Switch
1. Get a survey – Oil-to-gas conversions require a qualified engineer and typically cost £2,000-£4,000. Get 3 quotes before committing.
2. Check your boiler's age – If it's over 15 years old, combine the switch with a replacement to maximize efficiency gains (often 20-30% fuel savings).
3. Understand the timeline – Gas connections take 4-8 weeks from application. Schedule for July or August to avoid winter demand surges.
4. Lock in rates early – If you're switching to oil, don't wait. Geopolitical uncertainty typically pushes prices up, not down. Use our heating oil comparison to find the best current rate and consider a bulk buy.
5. Check government grants – The Boiler Upgrade Scheme still offers support in some regions. Verify eligibility before paying upfront.
The Bottom Line
With oil prices volatile and mains gas capped until 2027, now is the window to switch away from heating oil if mains gas is available. The conversion costs itself back within 3-5 years through fuel savings. If you're stuck on oil, at least lock in current prices while they remain relatively stable.