Best gas boilers for home heating


Gas boilers are a popular choice for homeowners, particularly in the United Kingdom. They’re easy to install and maintain, compact and efficient, and provide instant hot water – making them an ideal option for upgrading your existing heating system.

Which is the most efficient gas boiler?

best high efficiency gas boiler

A condensing boiler is the most energy efficient gas boiler on the market. It can produce up to 70% efficiency, which means that it converts more than three-quarters of your fuel into heat. This makes a huge difference in terms of saving money on your gas bills and reducing CO2 emissions. A non-condensing model will only reach around 65% efficiency, at best – so if you’re serious about saving money and the environment, you should go for a condensing model instead.

However, remember that this isn’t an option for everyone because they are more expensive to buy and install than standard boilers – which would explain why most people opt for non-condensing models instead!

How much does it cost to install a new high-efficiency boiler?

gas boiler install cost

The cost to install a new high-efficiency boiler will vary depending on the type of boiler you choose, but generally speaking it can be expected to cost between £1,000 and £6,000.

It’s important to shop around for the best deal on your new boiler. There are three main types: open fire, condensing and non-condensing. Open fires are very popular as they tend to be cheaper than other types of boilers; however they’re not very efficient because they lose heat through the chimney when burning fuel at low temperatures. Condensing boilers recover heat which would otherwise go up the flue pipe when burning fuel at high temperatures, meaning that less energy is lost in this way (around 80% compared with 50% for an open fire). Non-condensing boilers work more like traditional radiators (i.e., they don’t recover heat from combustion), so aren’t quite as efficient as condensing models – but do tend to have lower running costs overall because there’s no need for specialised pipes or ducting throughout your home.”

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Q What kind of fuel does your boiler use?

What is the best brand of gas boiler?

best gas boiler on the market

A gas boiler is a heating system that uses natural gas to produce hot water. The amount of hot water can be controlled by the amount of fuel used.

When choosing a new boiler, there are several factors you need to consider. One of these is the efficiency rating, which can be measured by something called COP (Coefficient Of Performance). This measures how much heat one unit of fuel produces for every unit used in production. The higher the COP rating, the better energy efficiency your new boiler will have and thus less energy bills for you!

The best brand of boiler will always be the one with the highest efficiency rating – currently this is Worcester Bosch Greenstar 30i Gas Boilers with an impressive 92% efficiency rating.

best gas boiler on the market

best gas boiler on the market

How long does it take to replace a boiler?

gas boiler replace

How long it takes to replace a boiler depends on the size of the property and whether there is existing pipework. A small boiler can be replaced in one day, while larger boilers may take several days.

What are the 3 types of boilers?

What are the 3 types of boilers?

  • Condensing: These are the most efficient, but they’re also the most expensive. They use an internal heat exchanger to transfer the heat from gas to water. The water then travels up through a tube at the top of your boiler and into your radiators or underfloor heating system. Condensing boilers produce very little waste soot, which makes them ideal for people with allergies or asthma as well as anyone who lives in a tight-knit community where pollution is a concern.
  • Combination: These boilers are able to switch between different types of fuel based on what’s available at any given time. They usually have separate pipes for both oil and gas so that they can switch back between one another without needing to be turned off completely (which would mean losing all of your hot water).
  • Non-condensing: These are generally less expensive than condensing models and tend to be used in rural areas where there aren’t many regulations governing air quality or efficiency standards like those found in urban areas

How do I choose the right size boiler?

Choosing the right size boiler is a balancing act. Boilers are measured in kilowatts (kW), which means that the more kilowatts you have, the more energy your appliance will use and therefore cost you money.

But there’s no point in having your boiler running at full capacity all day if it isn’t needed! The best way to work out if you need a large or small boiler is to think about how big your house is, how many radiators you’re going to have, what size of family lives in it and what sort of outside temperature we’ve been experiencing lately.

What is the average cost to install a gas boiler?

gas boiler install cost

The price of your gas boiler installation will depend on a number of factors, including the size and type of boiler you choose.

For example, if you opt for a high-efficiency condensing boiler, the average cost could be between £2,000 and £3,000. If you decide on an open vent system instead (a less efficient option), it’s likely to cost around £2,200 to £3,300.

If you choose an integrated condensing boiler or a combination system (which includes both hot water and central heating), it may be possible to reduce costs further by up to 20%.


We hope that this article has helped you to understand gas boilers a little better. If you have any questions or would like to discuss your needs further, please do get in touch with us today by whatsapp 0086 188 3890 8339 or visiting our contact page.

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