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The Advantages and Disadvantages of LPG Boilers

The Advantages and Disadvantages of LPG Boilers

In the UK, as many as 4 million homes are currently not connected to the natural gas network, meaning they must rely on external sources to warm their houses. The most common method of powering the central heating and heating your water is via the installation of an oil boiler. These require users to fill and then refill the boiler with oil.

Oil boilers have their advantages and their disadvantages, however, not many people know about the alternative. The alternative to an oil boiler is an LPG boiler. LPG stands for Liquefied Petroleum Gas, a combination of gaseous hydrocarbons produced from natural gas and oil extraction, as well oil refining. It is typically transported, at high pressure, in large tanks or small canisters on lorries direct to your door.

How an LPG boiler works:

In essence, LPG is burnt within the boiler to produce the energy required to warm your water and engage the central heating. The ultimate difference between a regular natural gas boiler and the LPG boiler is that the fuel needs to be delivered and stored in a special LPG tank at home.

The LPG boiler system consists of an LPG boiler and storage tank, and you will also require a reliable LPG supplier.


How much will an LPG boiler cost?

The price of an LPG boiler system can range from anywhere between £300 up to £1500. It really depends upon the size of the boiler and the brand. Please follow the link to our boiler brand guide to see the merits of each brand.

Here is the rough price guide for the boiler per brand…

  • Vokera £350-£550
  • Ideal £700-£1400
  • Alpha £700-£1800
  • Vaillant £1000-£1300
  • Worcester Borsch £1000-£2500

You will also require an LPG tank often kept in the garden.

The benefits of an LPG boiler:

  • Typically, the upfront costs of an LPG boiler are cheaper than an oil boiler – it is possible to find a decent LPG boiler for as little as £400. This is around half the price of the cheapest, decent oil boiler.
  • LPG is a cleaner fuel than oil – albeit still a fossil fuel, LPG produces roughly 18% less carbon than oil when burned. This can really help reduce your carbon footprint.
  • A modern LPG condensing boiler has great efficiency – they can achieve an efficiency rating of 90% or higher. This means less of your hard-earned money is wasted on inefficiencies in the boiler system. For every £1 spent, at least 90p is used in warming your home.
  • Quieter and more compact than an oil boiler

The drawbacks of an LPG boiler:

  • Higher fuel costs than natural gas and oil. This is the main drawback, and the price per kWh of energy is quite a bit higher than the other two sources, despite LPG’s price dropping in recent years.
  • The cost and the space required to house an LPG tank – this can be a costly requirement (upwards of £200) that you may not have taken into consideration. They are also rather sizeable depending on how much LPG you will require. Luckily, not being connected to the mains natural gas network could often mean your house is located in a rural area with large amounts of space, therefore bypassing this issue.
  • Finite amount of LPG storage – an LPG storage tank can only store so much fuel and, so you will need regular deliveries so as to not run out. If you do not pay close attention to your fuel levels and you run out, your house may go cold for days waiting for a delivery. However, as long as you diligently check the LPG levels, all should be ok.


If you have made the choice to install an LPG boiler, enquire with us today and receive a quote for a local Gas Safe vetted engineer.