Combi boilers are a very popular option with householders who are buying a replacement for an old boiler. You will need to have your boiler installed by a Gas Safe engineer and they will be able to discuss the options with you. Here are some options for you to consider.

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Why choose a combi boiler?

According to the Gas Safe Register, it is essential that your new combi boiler is fitted by a registered installer and you can find one on their website.

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The full name of a combi boiler is a combination boiler and it’s called this because it combines the function of heating the hot water for your central heating and delivering instant hot water to your taps. There is no storage tank so they take up less room. Also, they work from mains pressure so the pressure of the hot water coming out of the taps will be greater.

When you ask boiler installation Bristol experts such as bristolboilerservice.co.uk to install a new boiler for you, they will work out if a combi boiler is the best option for you.

They are considered to be very efficient because you only pay to heat the water that you need and are most suited to smaller houses. They may struggle to cope in very large houses where several taps could be running at the same time.

What size of combi boiler do you need?

In general, combi boilers are available in three sizes which are:

– 24 to 27 KW
– 28 to 34 KW
– 35 to 42 KW

The smallest size of combi boiler is the 24 to 27 KW and this would be suitable for a flat, an apartment or a small house. It can cope with a heating system that has 10 average-sized radiators and one bathroom with a bath and/or shower.

The medium-sized combi boiler can deliver between 28 and 34 KW. It would suit a normal family home with three or four bedrooms. It would be able to heat up to 15 average-sized radiators and supply hot water to one bathroom and to an ensuite bathroom containing a shower.

If you invest in the larger size (35 to 42 KW), it can supply heating to 20 radiators in a large house and water to two bathrooms.