May 18, 2024


What to expect when you buy a new oil boiler in UK

Things to expect from new oil boiler

With over 1.5 million houses in the UK relying on oil for heating, the oil boiler market is significant and remains an important sector of the residential heating industry. 

In this article we help you to get better understanding about what to expect when purchasing and installing a new oil boiler, ensuring you make a smart choice for your home.

First of all, before purchasing a new oil boiler, think about your heating demands. Consider your home’s size, number of rooms and hot water consumption. This will help you select the appropriate boiler size and type for your requirements.

✍️ Things To Consider

Choosing Your Oil Boiler

Oil boilers do differ from each other. Mainly there are three types:

  • Combination boilers (Combi) provide both heating and hot water directly from the boiler. Compact and excellent for tiny houses.
  • Conventional boilers, they require both a hot water cylinder and a cold water tank. Suitable for homes with traditional heating systems and high hot water consumption.
  • System boilers, they require a hot water cylinder but not a cold water tank. Suitable for families with high hot water demands.
Energy Efficiency

In addition to choosing the proper sort of oil boiler, energy efficiency is a major concern for UK households. Look for boilers with high-efficiency ratings, as this can lead to lower fuel bills and reduced environmental impact.

Modern oil boilers are meant to be more energy efficient than older versions, so purchasing a modern one can result in significant long-term savings.  

Smart heating controls offer precise temperature control, maximising energy savings and reducing wastage.

📌 What To Expect

1. Removing Old Boiler

If you are replacing an older boiler, the engineer will:

  • Check the location to confirm that it is appropriate for the new installation.
  • Safely disconnect and remove the existing boiler, disposing any waste or dangerous materials in accordance with environmental and safety laws.

2. Installation

The installation process has multiple steps and should always be completed by a competent specialist. 

First, we have Property Survey, which means that before installation, a heating engineer will perform a site survey at your home. They will evaluate what is the best location for the new oil boiler, condition of your current heating system and the type of flue system (to vent exhaust gases safely outside) that is necessary.

Later, the engineer will install the new boiler and connect to your home’s heating system and to the oil tank

3. Legal Compliance

In the UK, it is strictly demanded to make sure that your oil boiler installation meets all the necessary regulations:

Building rules – the installation must comply with UK building rules, which include safety, efficiency, and environmental criteria.

OFTEC Certification – the installation should be completed by an OFTEC (Oil Firing Technical Association) registered engineer. This certification guarantees that the engineer is qualified and that the installation follows industry norms. 

4. Benefits and Drawbacks

✅ Benefits

Other than comfort there are other advantages that new oil boilers bring:

  • Long-Term Cost Savings – yes, at first, the prices might be really high, but modern oil boilers’ improved efficiency and reduced fuel usage can lead to significant long-term savings.
  • Local Supply – many UK regions have excellent oil delivery services. They guarantee a consistent and steady supply of fuel.
  • Increased Property Value – installing a modern, efficient oil boiler can boost the value of your home by improving the heating system.
⛔️ Drawbacks

Other than comfort there are other advantages that new oil boilers bring:

  • Maintenance Requirements – oil boilers require regular servicing, typically on an annual basis and this costs the money.

  • Unsteady Price – due to market conditions the heating costs might change drastically.

  • Need for Professional Installation – unlike other heating systems, oil boilers do require expert engineers registered with OFTEC (Oil Firing Technical Association).

5. Smart Home Integration

Keep in mind, that while purchasing new oil boiler, there is a high possibility it to come with advanced controls and smart technology. Remote controls via mobile apps and other adjusted programs allow you to manage heating more efficiently.

TBIS Expertise

At The Boilers Installation Professionals ltd, we are the UK’s leading experts in new oil boiler installations. Our team of OFTEC certified engineers provides safe, efficient and professional service. We guarantee the quality and durability of our work with 12-year warranties

Our flexible financing options, including £0 deposit and various payment plans, make upgrading to a new oil boiler straightforward and affordable.

TBIS provides a seamless and cost-effective boiler installation experience throughout the UK.


Purchasing a new oil boiler in the UK is a significant investment with numerous advantages, such as better efficiency, increased comfort and long-term savings. In this article, we’ve looked into the factors you should consider before making a decision.

Additionally, we’ve outlined what to expect during the installation process, including legal compliance and the importance of professional installation. 

To sum up, by carefully analysing your heating needs and having right expectations, you can make the wise decisions that will keep your house warm and comfortable for years to come.

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