Are you tired of bulky heating systems that take up too much space and waste energy by heating water that you don’t even need? If so, it’s time to consider the wonder of combi boilers. Combi boilers are compact, energy-efficient, and offer an all-in-one solution for heating and hot water needs. With a combi boiler, you’ll have hot water on demand, without the need for a separate water tank or cylinder. So, if you’re ready to streamline your home’s heating system and enjoy instant hot water, read on to learn everything you need to know about combi boilers.

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What Is A Combi Boiler?

A combi boiler is a type of boiler that is designed to provide both heating and hot water to your home from one unit. The name “combi” comes from the words “combination boiler,” as it combines the functions of a traditional boiler and a hot water cylinder into one compact unit. Combi boilers heat water directly from the mains, so there’s no need for a separate water tank or cylinder.

A Stroke of Genius: How Combi Boilers Deliver Heating and Hot Water On-Demand 

Combi boilers work by heating water directly from the mains as soon as a tap or shower is turned on. The boiler uses a heat exchanger to heat the water as it passes through the unit, which is then distributed to the hot water outlets. When the heating is turned on, the boiler heats water that is then pumped around the radiators in your home.

The Future of Home Heating: Why Combi Boilers Are the Ultimate Energy-Efficient Solution

Combi boilers have revolutionized the way we heat our homes and provide hot water. They offer a range of benefits that make them an attractive option for homeowners looking to upgrade their heating systems. 

Here are some of the key benefits of a combi boiler:

✅Space-saving design: Combi boilers are compact and take up much less space than traditional boilers and hot water cylinders. This makes them ideal for smaller homes or properties with limited storage space.

✅Energy efficiency: Combi boilers are highly energy-efficient, as they only heat water when it is needed, rather than storing hot water in a tank. This means you can save money on your energy bills while reducing your carbon footprint.

✅Instant hot water: With a combi boiler, you’ll have instant hot water on demand, without the need for a separate water tank or cylinder. This means you won’t have to wait for a tank to heat up before you can take a shower or run a bath.

✅Constant supply of hot water: Combi boilers provide a constant supply of hot water, even if you have a large family or a lot of guests staying over. This is because they heat water directly from the mains, so there’s no need to worry about running out of hot water.

✅Easy to install: Combi boilers can be installed in a variety of different settings, making them a flexible option for homeowners. They are also easy to maintain, with annual servicing recommended to keep them running smoothly.

The 4 Types Of Combi Boilers 

GAS COMBI BOILER

A gas combi boiler is a central heating and hot water system that uses natural gas as a fuel source, which is delivered to homes via the national gas grid network. This is the most commonly used type of combi boiler in the UK as most homes are connected to the gas grid, making it an easy and quick fuelling option. While natural gas is a fossil fuel and can be damaging to the environment, it is considered the cleanest and cheapest fossil fuel compared to oil and coal.

OIL COMBI BOILER

An oil combi boiler, on the other hand, is an option for homes that are not connected to the gas grid. While oil can be a cost-effective alternative, it is not recommended if gas is accessible due to the extra difficulties that come with using oil as a fuel source. Oil must be stored in an external tank, taking up space in your garden or requiring a tank to be sunk into the ground. Planning and ordering refills is necessary to avoid running out of hot water.

LPG COMBI BOILER

LPG combi boilers use Liquefied Petroleum Gas, a combined product of natural gas and oil extractions. This is a cheaper and slightly cleaner option than oil, and more manufacturers are now producing LPG-compatible boilers. This makes it a great alternative for those who cannot access the gas grid.

ELECTRIC COMBI BOILER

Electric combi boilers are the most energy-efficient type of boiler available, as there is no waste when the electricity heats the water. However, running such an important home appliance on electricity can be costly and poor for the environment.

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Combi Boiler FAQs

How long does a combi boiler last?

The lifespan of a combi boiler can vary depending on usage and maintenance, but most modern combi boilers can last between 10 to 15 years.

How do I choose the right size combi boiler for my home?

The size of the combi boiler you need depends on the size of your home and the number of radiators and bathrooms you have. A heating engineer can help you determine the correct size for your home.

Can a combi boiler be used in a large house?

Yes, combi boilers can be used in large houses, but a higher output combi boiler may be needed to meet the demand for heating and hot water.

Do combi boilers require servicing?

Yes, combi boilers require regular servicing to ensure they are operating safely and efficiently. It is recommended to have your combi boiler serviced annually by a Gas Safe registered engineer.

Can a combi boiler be used with renewable energy sources?

Yes, combi boilers can be used with renewable energy sources such as solar panels or air-source heat pumps to reduce energy bills and carbon emissions.