Heating Oil Prices Are Rising Again – What Could a Heat Pump Save?

Many rural homes across the UK rely on heating oil, but recent price spikes are causing homeowners to compare the running cost of oil boilers with modern air source heat pumps. Over the past few weeks, heating oil prices have risen sharply. In some areas of the UK, prices have moved from around 60p per litre to over £1.20 per litre, with some deliveries briefly quoted at £1.40 per litre or more. For households that rely on oil heating, this is a familiar problem. Heating oil prices are highly volatile and influenced by global events, geopolitics, shipping disruption and seasonal demand. This means heating bills for rural homes can swing dramatically from one winter to the next.

But what does this actually mean in real numbers, and how does it compare with running a modern heat pump?

Typical Heating Demand for a Rural Home

Let’s consider a fairly typical home currently heated by oil. Annual heating and hot water demand of around 18,000 kWh per year is common for a 3–4 bedroom rural property.

Oil Boiler Efficiency

Modern oil boilers are often quoted at around 90% efficiency, although many older systems may perform slightly lower. For this comparison we’ll assume 90%. To produce 18,000 kWh of heat, the boiler must burn roughly 20,000 kWh of fuel energy. Heating oil contains approximately 10.35 kWh per litre, meaning the household would typically use around 1,930 litres of heating oil per year.

What Does That Cost at Current Prices?

If oil prices spike, the cost of heating the same home changes dramatically.

These prices are not hypothetical – they have all been seen in the last week alone.

How Does That Compare With a Heat Pump?

One of the most common questions we hear is whether a heat pump will actually reduce running costs compared with oil. Based on the performance data from our monitored installs, the answer is often yes. Our recent blog looking at 10 real homes showed average system performance of over 4.1 COP across the sample. For this comparison, however, we have used a more cautious seasonal efficiency of 3.7 COP.

You can read the full article here:
https://www.greengenuk.com/blog/real-heat-pump-running-costs-10-homes/

Using a COP of 3.7, the same home would require approximately 4,865 kWh of electricity per year. At an electricity price of 27p per kWh, the annual heating cost would be roughly £1,314 per year.

Annual Cost Comparison

At £1.20 per litre oil, a typical home could save around £1,000 per year by switching to a heat pump.

Even at £1.00 per litre oil, a heat pump looks attractive on running cost. At £1.20–£1.40 per litre, the potential saving grows to around £1,000 to £1,400 per year.

Oil Prices Have Always Been Volatile

Looking back over the past decade, heating oil prices in the UK have ranged from roughly 20p per litre to more than £1.50 per litre. That means the cost of heating the same home can vary by thousands of pounds per year depending purely on global oil markets. Heat pumps, by contrast, run on electricity, which tends to move more gradually and can also be paired with solar panels, battery storage and smart tariffs to reduce costs further.

If You’re About to Refill Your Oil Tank

Many homeowners are currently facing the decision to buy another 1,500–2,000 litres of heating oil. At £1.20 per litre, that refill could cost £1,800–£2,400. At £1.40 per litre, it could be £2,100–£2,800. For some households, that money could instead form part of the investment in switching to a heat pump.

With the £7,500 Boiler Upgrade Scheme grant, the upfront cost of installing a heat pump has reduced significantly. When the government grant, avoided oil purchases and lower running costs are combined, the switch away from oil can become surprisingly achievable.

A More Stable Way to Heat Your Home

For rural homes across Cornwall and Devon, moving away from oil heating can offer lower long-term running costs, protection from oil price spikes, reduced carbon emissions and compatibility with solar panels and battery storage. While no heating system is completely immune to energy price changes, heat pumps remove the household’s reliance on global oil markets.

Thinking About Moving Away From Oil?

At GreenGen, we design heat pump systems for rural homes currently heated by oil or LPG. If you would like to understand what switching could look like for your property, we’d be happy to help.

Request a home survey today here or Call 01326 564513

Heating oil price data referenced in this article is based on publicly available information from BoilerJuice.
https://www.boilerjuice.com/heating-oil-prices/