The Ultimate Guide to LPG Boilers [NEW]

If you're looking for an LPG boiler, you've come to the right place. Here's what you should know when getting an LPG boiler...

Most of us take it for granted that we will be able to get our fuel from the natural gas network. However, if your property is not linked to the grid, you may be reliant on an oil or an LPG boiler to heat your home and provide hot water.

While oil burners have their benefits, you may not be aware that LPG boilers are cheaper to purchase and emit fewer carbon emissions. So, when the time comes to replace your existing boiler, an LPG boiler could be a great option!

lpg boiler guide

Our Guide To LPG Boilers

How do LPG Boilers Work?

Did you know that an LPG boiler operates in the same way as a natural gas or oil boiler? It burns fuel to provide the energy needed to heat water from the main supply. This hot water can then be used to heat radiators and to supply hot water to taps.

The fuel for  LPG boilers must be stored in a tank, in your home.  It's worth noting that some natural gas boilers can be converted to LPG, so if you are considering getting our gas boiler replaced with an LPG boiler, it can be done easily.

How much does an LPG boiler cost?

LPG boilers start at roughly £400 and can go up to £2500, depending on the boiler model and manufacturer you got for. You also need to consider the cost of an LPG tank which is something your LPG supplier may be able to rent out.

While LPG is more expensive per unit than oil, it is a more efficient fuel, so you may find that your heating bills decrease, particularly if you replace an older boiler.

You finally need to consider how much it would cost to get an LPG boiler installed by fully trained and qualified heating engineers. Many engineers offer various rates and it is always good to ensure you get quotes from several heating companies to ensure you get the best price possible.

Does an LPG boiler need servicing?

Because LPG is denser than regular gas, the boiler's components must be adapted to withstand the added weight. It's worth noting that LPG has a higher density factor than mains gas, which implies that a given unit of this fuel produces more energy.

You should get your LPG boiler tested by a qualified professional on a regular basis. An LPB boiler service involves:

- Safety checks

- A visual inspection of the tank and its support platform

- Inspection of external fuel pipes and  vessels

guide to lpg boilers

LPG Storage and Delivery Options

LPG must be stored in a tank, either above ground or underground. You also need to make sure the piping and vessels are installed to connect the storage tank and your boiler unit.  

These storage tanks also come in a wide range of sizes, here at Castle Heating Kent, we recommend that you consult an expert to help determine the ideal size for your property.

A truck delivers LPG, and once it arrives at your house, the provider will connect pipes and run the refuel using the tanker's pump. It is very important to make sure the roads leading to your house are easily accessed by the truck to your storage tank. It is your responsibility to arrange for a refill, thus you must keep track of your fuel usage at all times. Don't wait until you've used up all of your petrol because road or weather conditions may cause a refill to take longer than expected.

Advantages of LPG Boilers

Once an LPG boiler is installed, you'll be able to take advantage of its many advantages, which include:

Cheaper than oil

When compared to oil boilers, LPG boilers are a lot cheaper to buy, making them ideal if you are on a budget when it comes to replacing your boiler.

Cleaner fuel

LPG boilers also consume less energy and emit fewer greenhouse gases. This is good news, as the government is searching for ways to encourage people to support this. LPG boilers emit about 20% less carbon, reducing your home's carbon footprint significantly.

High efficiency

Newer and modern LPG condensing boilers are known to achieve an efficiency of 90% or greater, which implies that only 10p of every £1 spent on heating your home is wasted.

Compact sizes

LPG boilers are often smaller than oil-fired boilers, and therefore produce less noise, making them ideal for smaller sized properties.


In recent years, LPG boilers have had a significantly greater range than oil boilers. Especially with market leaders such as Worcester Bosch, Vaillant, Ideal, and Baxi producing popular models. Some manufacturers even go on to produce LPG conversion kits that can be used to convert natural gas boilers to LPG versions.

Learn more about LPG Boilers

To find out more, speak to our LPG boiler installers across Maidstone, Gravesend, Aylesford and Rochester by calling us on 0800 0016511 and we'll be happy to help.