Guides & advice

Heating oil guides:
expert UK advice

Everything you need to buy smarter, save money, and understand your heating system. Free guides from PriceTank's editorial team.

This month

July 2026 price report
UK national average · 1,000 litres
79.4p per litre ex VAT
▲ 2.5p from June
Read the full July report →

Heating oil is sitting at 70.7p per litre for a 1000L delivery in July 2026, down from a monthly average of 76.9p in June and well below the 83.8p average recorded in May. Prices fell sharply through the second half of June, losing around 14p per litre from the 85.2p peak seen on 3 June to a low of 70.1p on 25 June. The market has since stabilised near 70p with modest upside pressure beginning to build.

Market direction
→ Stable
Analyst view
Buy now
500L avg
79p/L
vs June avg
▲ 2.5p

Most popular

Buying guide

500 litres vs 1,000 litres. Which is better value?

1,000L is almost always cheaper per litre. We show exactly how much you save and when it's worth ordering more at once.

6 min read
Usage guide

How much heating oil does a house use?

UK averages by house size, boiler type, and insulation. Plus a simple formula to estimate your own annual consumption.

7 min read

Money saving

Financial help

Heating oil grants & government help 2026

What's available in England, Wales, Scotland, and Northern Ireland. Including the Crisis & Resilience Fund, Scottish Welfare Fund, and Boiler Upgrade Scheme.

10 min read
Heating systems

Oil boiler vs heat pump. Cost comparison 2026

The £7,500 BUS grant changes the maths. An honest comparison of upfront costs, running costs, and which properties make sense for a heat pump.

10 min read
Savings guide

Group buying and oil clubs

Ordering together with neighbours can unlock bulk pricing unavailable to individual buyers. Community oil groups can save 5 to 10p per litre on every order.

7 min read

Understanding your tank & fuel

Beginner's guide

What is kerosene? UK heating oil explained

Kerosene, heating oil, 28-second oil, C2, why so many names? A plain-English guide to what's in your tank and how it works.

6 min read
Tank guide

Heating oil tank sizes UK, what do you need?

Standard capacities, bunded vs single skin, siting rules, and how to choose the right size for your property and usage.

7 min read
Tank guide

How to check your heating oil level

Float gauges, dipsticks, smart monitors, and what to do when your gauge stops working or you run out in winter.

6 min read
Tank guide

Oil tank replacement cost UK 2026

Full installed costs for bunded tanks from 500L to 2,500L, what's included, when replacement is urgent, and how to avoid expensive surprises.

7 min read
Renewable fuels

HVO fuel UK: the renewable alternative to heating oil

A direct replacement for kerosene in most modern boilers with no modifications required. Up to 90% fewer lifecycle carbon emissions at a 20 to 35% price premium.

9 min read
Fuel comparison

Heating oil vs LPG: which costs less?

Oil typically delivers heat at 7 to 8p per kWh versus 10 to 13p for LPG. For most off-grid homes the annual difference in favour of oil is £600 to £1,000.

8 min read
Appliance guide

Heating oil for Agas and Rayburns

A traditional two-oven Aga uses 1,500 to 1,800 litres a year. Fuel type, consumption, running costs, and how to manage them.

8 min read

Regulations & installation

Regulations

Oil tank regulations UK 2026, what every homeowner must know

Bunding requirements, siting rules, OFTEC certificates, planning permission, and what happens if your tank isn't compliant. The complete compliance guide.

12 min read
Heating systems

Outdoor vs indoor oil boiler. Which is right for your home?

External boilers need no flue and free up indoor space, but aren't right for every property. A practical comparison covering costs, regulations, and exposed locations.

8 min read
Money saving

How to get the best price for heating oil: 9 proven strategies

Compare suppliers, time your purchase, order more at once, use price alerts. Nine practical strategies worth £200–£500 a year to the average household.

9 min read

Maintenance & troubleshooting

Maintenance guide

How to bleed an oil boiler

If your boiler locks out after running low or following a delivery, an air lock in the fuel line is the usual cause. Clear it yourself in ten minutes without calling an engineer.

10 min read

Commercial fuel

Commercial fuel

Red diesel prices UK 2026, gas oil cost & suppliers

Current gas oil prices, who can legally use red diesel after the 2022 rule changes, VAT rates, and how to find commercial suppliers.

8 min read
Commercial

Commercial fuel comparison. Gas oil, HVO & bulk kerosene

Find suppliers for gas oil, HVO, and bulk kerosene for farms, construction, hospitality, and fleet use. Direct supplier referrals.

Commercial tool

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