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What Is An LPG Boiler?

March 22, 2023

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An LPG boiler is a type of boiler that uses liquefied petroleum gas (LPG) as a fuel source to generate heat, which is then used to heat water for central heating and hot water systems. LPG is stored in liquid under pressure in tanks or cylinders, making it easy to transport and store. LPG boilers are a convenient and efficient way to heat homes and hot water systems, particularly in areas where there is no main gas supply. In this blog, we will explore what an LPG boiler is, how it works, and its benefits and drawbacks.

 

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What is LPG?

LPG is a type of hydrocarbon gas that is produced during the refining of crude oil and natural gas. It consists of propane and butane, which are both gases at room temperature and atmospheric pressure. LPG is stored in liquid form under pressure in tanks or cylinders, making it easy to transport and store.

How Does An LPG Boiler Work?

An LPG boiler works in the same way as a natural gas boiler or oil boiler, with the main difference being the fuel source. The boiler burns LPG to generate heat, which is then used to heat water for central heating and hot water systems.

When the boiler is turned on, a valve opens to release the LPG gas into the burner. The gas is then ignited by an electronic ignition system, which creates a flame that heats the heat exchanger. The heat exchanger transfers the heat from the burner to the water in the central heating system or hot water cylinder, which is then circulated around the house.

LPG boilers come in a range of sizes and types, including combi boilers, regular boilers, and system boilers. Combi boilers are the most popular type of LPG boiler, as they are compact and efficient, and do not require a separate hot water cylinder or cold water tank.

Pros And Cons Of An LPG Boiler

Benefits of LPG boilers:

✅Lower carbon emissions: LPG is a cleaner burning fuel than coal or oil, producing lower levels of carbon emissions and other harmful pollutants. This makes LPG boilers a more environmentally friendly choice for heating and hot water systems.

✅Versatility: LPG can be used in a range of applications, including central heating, hot water systems, cooking, and even fueling vehicles. This makes LPG a versatile and convenient fuel source for homes and businesses.

✅Energy efficiency: LPG boilers are highly energy efficient, with modern condensing boilers achieving efficiencies of up to 98%. This means that they can help to reduce energy bills and lower carbon emissions.

✅Convenience: LPG is easy to transport and store, making it a convenient fuel source for homes and businesses that are not connected to the main gas grid. LPG boilers can be installed almost anywhere, as long as there is sufficient space for the storage tank or cylinders.

Drawbacks of LPG boilers:

❎Higher fuel costs: LPG can be more expensive than natural gas or oil, which can make it a less cost-effective fuel source in some areas.

❎Storage requirements: LPG boilers require a storage tank or cylinders to store the fuel, which can take up valuable space and require regular deliveries.

❎Safety concerns: LPG is a flammable gas, which means that there are some safety concerns associated with its use. It is important to ensure that LPG boilers are installed and maintained by qualified professionals to ensure their safe and efficient operation.

❎Carbon footprint: Although LPG produces lower levels of carbon emissions than coal or oil, it is still a fossil fuel and contributes to global warming. For this reason, some people may prefer to use renewable energy sources, such as solar or wind power, to heat their homes and hot water systems.

What Is The Difference Between Gas And LPG Boilers?

The main difference between a gas boiler and an LPG boiler is the type of fuel they use. Gas boilers are designed to use natural gas, which is piped into homes and businesses through a network of gas mains. On the other hand, LPG boilers are designed to use liquefied petroleum gas (LPG), which is stored in tanks or cylinders and delivered to properties by road.

There are a few other differences between gas and LPG boilers worth noting. Here are a few key differences:

  • Fuel availability: Gas boilers are only suitable for properties that are connected to the mains gas network, whereas LPG boilers can be used in properties that are off-grid or not connected to the mains gas network. However, the availability of LPG suppliers may be limited in some areas, so it’s important to check before opting for an LPG boiler.
  • Installation: Gas boilers are generally easier and quicker to install than LPG boilers because they don’t require the installation of a storage tank or cylinders. LPG boilers require space for a storage tank or cylinders to be installed, which can take up valuable space and may require additional pipework.
  • Cost: The cost of installation for a gas boiler is generally lower than that of an LPG boiler because the installation process is less complex. However, the ongoing cost of fuel may be higher for gas boilers, as natural gas prices can fluctuate. LPG prices can also fluctuate, but because LPG is not subject to the same market pressures as natural gas, prices may be more stable over time.
  • Efficiency: Both gas and LPG boilers can be highly efficient if installed and maintained correctly. Modern gas boilers and LPG boilers are designed to be highly efficient and can achieve efficiencies of up to 98%. However, LPG boilers may be slightly less efficient than gas boilers because LPG has a lower calorific value than natural gas, meaning that more LPG is needed to produce the same amount of heat.
  • Carbon emissions: Both gas and LPG boilers produce carbon emissions when they are used to heat homes and businesses. However, LPG boilers may produce slightly fewer carbon emissions than gas boilers because LPG is a cleaner burning fuel. Additionally, LPG boilers can be used in combination with renewable technologies like solar thermal systems or heat pumps, further reducing carbon emissions.

The main difference between gas and LPG boilers is the type of fuel they use. Gas boilers are connected to the mains gas network, whereas LPG boilers use LPG which is stored in tanks or cylinders. The choice between gas and LPG boilers will depend on the availability of the fuel source, the cost of fuel, the efficiency of the boiler, and the environmental impact of using each fuel source.

An LPG boiler is a highly efficient and versatile heating and hot water system that uses liquefied petroleum gas as a fuel source but does have its drawbacks. If you require more advice on LPG boilers, Origin can help you decide. Contact us today or visit our FAQ page for more information.

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LPG Boiler FAQs

How Much Does It Cost To Install An LPG Boiler?

The cost of installing an LPG boiler will depend on the type and size of the boiler, as well as the complexity of the installation. Combi boilers are the most popular type of LPG boiler, as they are compact and efficient, and do not require a separate hot water cylinder or cold water tank. The cost of installation can vary depending on the supplier, but it is important to ensure that the installation is carried out by a qualified professional.

How Do I Know If An LPG Boiler Is Suitable For My Home?

LPG boilers are suitable for homes that are not connected to the mains gas grid, as they can provide a convenient and efficient heating and hot water system. To install an LPG boiler, you will need to have space for a storage tank or cylinders to store the LPG fuel. You should also consider the cost of the fuel and the availability of LPG suppliers in your area.

How Often Do I Need To Refill The LPG Fuel Tank Or Cylinders?

The frequency of refilling the LPG fuel tank or cylinders will depend on the size of the tank or cylinders and the amount of fuel used. It is important to monitor the fuel levels regularly and order refills in advance to ensure that you do not run out of fuel. Some suppliers offer automatic delivery services to ensure that you never run out of fuel.

Can I Switch From Natural Gas To Lpg?

Yes, it is possible to switch from natural gas to LPG, although it will depend on the availability of LPG suppliers in your area. If you are considering switching, it is important to speak to an LPG supplier to discuss your options and ensure that the installation is carried out correctly.

Are LPG boilers Safe To Use?

LPG boilers are safe to use when they are installed and maintained by qualified professionals. LPG is a flammable gas, so it is important to ensure that the installation is carried out in accordance with safety regulations. It is also important to have the boiler serviced regularly to ensure that it is operating efficiently and safely.

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