Energy-efficient boiler replacement options for your Harrow home

Why upgrade your boiler?

If you live in Harrow, you understand the importance of energy efficiency due to the increasing energy prices. Replacing your old and outdated boiler with a new energy-efficient one can decrease your energy bills while making your home more comfortable. But what are your options for boiler replacement?

Types of boilers

There are four main types of boilers: combi, system, conventional, and condensing. A combi boiler is ideal if you have limited space, as it provides both heating and hot water and does not need a hot water storage cylinder or tank. System boilers require a hot water storage cylinder and are supplied by the mains water supply. Conventional boilers have the additional requirement of a water storage tank, usually installed in the loft. Finally, condensing boilers are fuel-efficient and extract energy from the exhaust gases, which makes them the most energy-efficient of the four types of boilers.

Considerations when selecting a boiler

When selecting a boiler, there are many factors to consider. The size of your home and how many people live in your home, for example, determines the size of the boiler you will need. Additionally, you will need to consider how much hot water you use and at what time of day you use it.

Energy-efficient boilers have an AFUE (Annual Fuel Utilization Efficiency) rating of at least 90%. The higher the rating, the more efficient the boiler. A condensing boiler has an efficiency rating of around 95%. Consider the type of fuel the boiler will use, such as gas, oil, or electricity, and the cost of that fuel. Some gas boilers are less expensive than some oil boilers, but gas prices can be volatile. Additionally, oil boilers require regular servicing to keep them running efficiently.


When you have selected the type of boiler that is best for your needs, a qualified engineer will install the new boiler and pipework. They will also remove your old boiler and dispose of it safely. The cost of the installation will range depending on the type of boiler, how long it takes to install and where it is placed, and how much pipework needs to be installed.


The cost of a new boiler can range from £500 to £2500. The cost of installation will range from £800 to £1500. Make sure to obtain quotes from several engineers and compare the prices. Additionally, the Energy Saving Trust offers a £400 voucher for some homeowners who make energy-efficient improvements to their homes, such as a new boiler. Some utility companies will also offer rebates or financing to make the upgrade more affordable. Want to keep exploring the subject? Visit this comprehensive content, we’ve selected it to complement your reading.


Upgrading to a new energy-efficient boiler can improve your home’s comfort level and decrease your energy bills. However, there are many things to consider before making the investment. Look for an energy-efficient boiler that meets your household needs. Have it installed by a qualified engineer and make sure to get competitive quotes. Finally, look out for available incentives, vouchers, or rebates to make the upgrade more affordable. With these considerations in mind, upgrading your Harrow home’s boiler can be a smart and beneficial investment in the long run!

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