The Installation Cost of LPG Gas Central Heating

All you need to know about installing LPG gas central heating for your home including costs of materials, labour and time frames.

LPG Gas Central Heating Cost

Source: Northern Energy

What the job entails

The majority of UK homeowners use mains gas to fuel their central heating systems, but a small minority have to seek out other options as they’re not connected to the mains gas grid. If mains gas is not an option, then a popular alternative heating fuel is liquid petroleum gas or LPG, which can be used with the same type of conventional gas central heating system. The main difference between LPG and mains gas, is that you need to have your LPG delivered and stored at your property in your own personal supply tank, whereas mains gas is pumped directly into the property on demand.

LPG gas central heating systems require a boiler plumbed into the house and an external storage tank that is accessible for regular LPG supply deliveries via your gas supplier. Liquid petroleum gas supply tanks can be positioned above or below ground, depending on the land available and personal preference. This supply tank is then linked to the gas boiler and heating system (by trained Certified Gas Safe LPG Engineers only). Tankers are dispatched to refill your supply tank as required.

The cost of LPG will vary, but the price per kwh is usually cheaper than electricity, but more expensive than mains gas. Though mains gas is certainly the cheapest of the three fuels, it’s simply not an option for those not on the grid. But if we compare LPG to the cost electricity for heating, then the savings are substantial. Though there are additional costs such as the annual tank rental which is typically £65. Replacing an older LPG boiler with a modern efficient combi model will cost between £1,600 and £2,000.

There are a number of advantages to LPG heating, first of all, LPG is a cleaner fuel when compared to other fossil fuels such as oil and coal. Burning LPG produces less sulphur, nitrogen oxides, carbon dioxide (33% less carbon dioxide than coal and 15% less than oil) and even soot (so it is literally cleaner!) The heat produced using LPG central heating is very controllable, just like mains gas. LPG is quiet and doesn’t produce any strange smells like burning oil, plus LPG boilers are smaller and don’t require as much maintenance.

LPG is a flexible and efficient fuel source for those who live off the gas grid. But LPG does have some drawbacks, mainly the delivery aspect, as your tank will hold your only supply, you need to make sure you get it refilled before it runs out, allowing at least 10 days for delivery to avoid any last minute issues. Plus you need somewhere suitable to place the LPG storage tank. Plus you have to remember that even though LPG is cleaner than coal or oil, it is still a non-renewable, fossil fuel that releases carbon dioxide and other harmful gases into the environment.

Advantages of using LPG fuel - LPG is a clean burning fuel which produces less carbon emissions than other popular home heating fuels such as oil or coal. In the event of a spill, LPG won’t cause contamination to water or the environment.

Disadvantages of using LPG - The tank has to be rented off your supplier and serviced annually, plus the cost of gas is expensive compared to mains gas.

Ready to get a quote from local tradesmen?

Post your job in minutes and get quotes from local and reliable trades. It's FREE. No obligations.

Get a Quote

Installation Cost of an LPG Boiler

The typical material cost for an LPG boiler is typically between £1,600 and £2,000. The initial investment will save substantial money in the long run to electric heated boiler.

The average rate a gas engineer will charge is around £150-£200 per day. The job should take 1-2 days depending on ease of installation and if no extra pipework is required.

Below are some estimated costs of hiring a gas engineer to install an LPG boiler:

Job Description Avg. Cost Duration
Installing a modern LPG combi model Boiler £1500-£2500 1-2 days
Average annual tank rental £65 Not applicable

Cost Breakdown

Individual Costs of Installing a Modern LPG Combi Model Boiler - Total Cost: £2000






Waste Removal


Yes, there are a wide range of highly efficient LPG boilers available from household name manufacturers (including Alpha, Baxi, Glow-worm, Potterton, Valliant, Veissman and Worcester), including a number of modern combination boilers available as a dedicated LPG models.
Just like a mains gas boiler, your LPG boiler should be serviced annually by a Gas Safe registered installer to ensure that it is operating safely and at peak efficiency. An annual service will also likely be a requirement of your boiler's warranty – so for a number of good reasons always get your boiler serviced annually by a competent engineer.
If you currently use oil for central heating, you should consider switching to LPG for a cleaner, efficient and modern alternative fuel for heating. Switching from oil to gas is probably easier than you think, and in just a few simple steps you could be enjoying the benefits of clean fuel, off the grid. Companies like Calor Gas offer an easy switching service and can offer automated gas delivery and a compact or even underground gas tank. There is no need to replace any pipework or radiators in the home, just a new boiler (or perhaps just a boiler modification) and new gas tank is required.
LPG boilers are very similar to mains gas boilers, but they have smaller burner jets as LPG is supplied at a higher pressure than mains gas. Most LPG boilers are usually designed to burn LPG, but you can also get an LPG conversion kit can be used to adapt your regular mains gas boiler to an LPG boiler. LPG boilers offer all the same features as mains gas boilers, but, like all boilers, they do require professional installation and regular servicing by a gas safe engineer to ensure they are safe to use and you get the best from them.
If you would prefer to have the tank hidden underground then this will typically cost an additional £1500. The underground tank is ideal for those who want an unobtrusive installation as once installed, the only thing you can see is the green cover that provides access for refilling your tank. A cheaper alternative is the Calor Compact, 4 x 47kg LPG cylinders in a subtle storage unit with a telemetry device to give you a continuous gas supply with automated LPG delivery. The Calor Compact is free to install for those making the switch from oil to LPG.