Expert Advice & News

Replacing a boiler

Latest figures from Energy UK state that heating accounts for 55 percent of what you spend in a year on energy bills, so an efficient boiler makes a big difference.

Although all well-maintained boilers burn their fuel efficiently, older boilers inevitably lose some heat in the hot gases that escape up the flue (a pipe for extracting fumes and supplying fresh air to the boiler). 

Modern boilers are more efficient than ones manufactured as recently as 10 years ago for several reasons. Their main advantage is that they are condensing boilers, A condensing boiler has a larger heat exchanger, so it recovers more heat, sends cooler gases up the flue and is more efficient. Sometimes the flue gases get so cool that the water vapour in the gas condenses out, hence the name, and even more energy is recovered from the condensing vapour.  So, upgrading to an A-rated high-efficiency condensing boiler could make a noticeable difference to your heating bills whilst reducing your carbon emissions.

Temperature control devices have developed in that time too, meaning you can be far more precise with how you heat each area of your home. 

What should you consider when replacing your boiler.

If it is time to change your boiler, you need to decide what type of boiler is right for you. Here are some things to consider.

Fuel type.

If you have mains gas, a gas boiler is likely to be the cheapest heating option. Natural gas is the most widely-used heating fuel in the UK, it's also the cheapest option available to consumers (per kw according to Energy Saving Trust figures, when compared to oil, economy 7, LPG and house coal).

If you don’t already have a gas supply to your home, it might be worth considering installing this – we can offer a free survey and provide you with a free quote.

Boiler type.

Most old gas boilers are regular boilers that have a separate hot water cylinder to store hot water, rather than providing it directly from the boiler. When you replace your boiler, you can buy a new regular boiler, and keep your hot water cylinder, or buy a combi boiler that doesn't need a cylinder.

A regular boiler is more efficient than a combi at producing hot water in the first place, but then some heat is lost from the hot water cylinder, so a combi may be more efficient overall. Which is better for you will depend on different things.  We are happy to offer a free site survey where we will discuss your heating and hot water usage.  We can then provide you with accurate advice and information on the different options available to best suit your needs and maximise your energy savings, whilst keeping within budget. 


You can change the location of your new boiler installation.  New boilers are made with superior materials and technology and can produce a lot less noise than older boilers. This can be beneficial if space is limited in your kitchen and you would prefer your boiler installed in a living or sleeping area of your home. 

Upgrading your system to HIVE Active Heating.

Come back to a nice warm house, without ever having to heat an empty one. HIVE Active Heating lets you control your heating from your smartphone. And if you’ve got a hot water tank, you can control that too.

If you require further advice contact us

We are approved Vaillant Advance and Ideal Max installers and will always offer honest and free advice.  We are able to offer an extended warranty when you choose us for your boiler installation. Whether you choose a combi, system or regular boiler, we can now provide a 7 to 12 year manufacturer’s guarantee for your peace of mind. We include a hot chemical flush, with added inhibitors, on all new boiler installations. However, there is the option to upgrade to a full system power flush (the gold standard for cleansing a central heating system) to improve the efficiency of the existing pipes and radiators of your central heating system.  

If you would like to view examples of boiler installations completed by Beales Services, visit our gallery pages.

You can check our reviews to see what our existing customers think about our services.

Or contact our team, we are always happy to answer any questions you may have.

020 3488 0883

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