Home Heating Oil
Heating oil is a liquid fuel that powers oil fired central heating systems. The name commonly refers specifically to petroleum-based oil that is suitable for home heating use.
Call 0345 600 4040A Guide To Home Heating Oil
Off-grid homes are homes that, due to their more remote location, aren’t provided energy by the National Gas Grid. There are over one million households in the UK that are considered off-grid. Home heating oil, also known as kerosene, provides an alternative heating source for these households.
If you do happen to live off-grid, at Certas Energy we offer a home heating oil delivery service, to help you always keep your storage tank full.
How Does Home Heating Oil Work?
Heating oil is an oil tailor made for specialised boilers fitted with oil burners, allowing for the home to receive adequate heating via the various pipes and radiators that the boiled water flows through in the home.

What are the different types of heating oil?
There are only a handful of heating oil types available for domestic use. The two main examples of home heating oil include:
Standard Kerosene
Also known as home heating oil or 28-second oil. This is a lighter type of oil which is used in a domestic setting in many homes in the UK.
Premium Kerosene
This heating oil is a more efficient*, cleaner burning home fuel compared with standard kerosene.
What is premium heating oil?
At Certas Energy, we also provide an exclusive premium heating oil: Glowmax.
It is a cleaner burning fuel and can help a boiler to burn more efficiently* than standard kerosene.
Our premium heating oil offers a number of benefits:
- Potential to lower boiler maintenance costs
- Reduced sludge formation which can prolong a boiler’s life
- More efficient fuel performance
- Lowered risk of a boiler breakdown
For more information about the benefits of premium oil for your home, read our comprehensive guide.
*Glowmax tests based on standard industry tests for stability and combustion quality such as BSI 2000-10, ASTM D3241 (mod. 350°C), ISO 6615 and thermogravimetric analysis under air or nitrogen and with or without metal traces.

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Frequently Asked Questions
How much does heating oil cost in the UK?
There are several factors which may affect the current price of home heating oil. These can range from political conflicts and foreign exchange rates to logistical issues like weather and delivery costs.
The price of home heating oil tends to drop slightly during the summer months, with some customers choosing to top up their tanks during the warmer seasons. However, at Certas Energy we pride ourselves in offering competitive prices with no service charge all year round.
Please note: Due to fuel prices changing daily, we can only hold your quote until midnight on the day the quote was provided.
For more information, you can read our helpful guide on the price of home heating oil.
What is kerosene and how is it made?
Kerosene is a type of oil which is commonly used in domestic heating systems in the UK. Also known as heating oil or paraffin, it is a non-corrosive fuel that poses less danger than other fuel types.
Kerosene can be stored safely for several years, which makes it ideal for domestic storage. Kerosene is made from petroleum: a natural oil found beneath the earth’s surface.
The process for making kerosene begins with drilling and distillation. Using high temperatures, the petroleum is then broken down into different fuels, including: butane, propane, petrol, diesel, and kerosene.
How do I store heating oil?
Heating oil can be stored in a plastic or steel storage container, such as a tank, drum, intermediate bulk container (IBCs) or a mobile container.
If you’re heating up your home using heating oil, it’s important that the tank you use follows the proper storage regulations set out by the government. The guidance applies to tanks that can store up to 5,000 litres of fuel. Any higher volumes would have to refer to business regulations.
If you don’t yet have a tank, it’s crucial to make sure that your new tank is manufactured to OFTEC standards and that a registered technician installs it. You should also consider the location and positioning of your new heating oil tank, as well as maintaining regular checks. A full list of rules and regulations can be found on gov.uk, as well as industry standards agency OFTEC.
How do I buy heating oil?
To make sure you’re never in a situation where you are running out of home heating oil, you can order heating oil easily from Certas Energy online. You simply need to choose which type of oil you require and the amount of oil you need. You can order between 500 and 5,000 litres of heating oil.
If you’re a new customer, you’ll need to set up an account with us to provide your personal details, including the home address you’d like us to deliver the heating oil to, so we can then agree on a quote and arrange the payment method that works best for you.
We can deliver fuel oil to homes within England, Wales, and Scotland. Our local teams will have the oil with you by the delivery date in your instant quote. If there’s no set date, we guarantee oil delivery within 30 days.
Login or set up an account to buy fuel online. Alternatively, call us at 0345 600 4040 and our knowledgeable advisors will be happy to help place your order.
For more information about buying oil for your home, read through our domestic terms and conditions.
Helpful Guides For Domestic Customers

Certas Energy News
Our Top 3 Tips for Preparing your Boiler for Winter
Winter is Coming: Time to Check Your Boiler! As temperatures begin to drop, it’s natural to cosy up with knitwear, a hot cup of chocolate and the comforting warmth of your home’s heating system. But there’s one thing many of us forget to prepare for – the boiler! After months of lying dormant, your boiler […]
– Certas Energy

Certas Energy News
A Guide to Monitoring Your Heating Oil Usage
Regularly checking how much oil is in your home heating oil tank will prevent you from running out of fuel when you least expect it. Taking accurate readings will help you plan your heating oil deliveries, so you will always have what you need. Why is Monitoring Home Heating Oil Usage So Important? Keeping track […]
– Certas Energy

Certas Energy News
How to Store Heating Oil Safely for Domestic Use
Domestic heating oil tanks are a convenient way for homes across the UK to store fuel. But there are many things to consider when deciding on the best way to store your heating oil. The type of oil tank you choose, where you install it, and how often you maintain it will all have an […]
– Certas Energy