Which Is The Best Boiler For A 5 Bedroom House?

December 17, 2021 | Best Boilers, Boiler Installation, Boilers, New Boiler

Which Is The Best Boiler For A 5 Bedroom House?

What You Need to Consider

Buying and installing a new boiler in your home is a big (potentially expensive and disruptive) decision, and a new boiler should last you for years – so it’s essential you make the right choice for your home. There are lots of factors you need to take into consideration such as efficiency, carbon footprint, size of your home and the size of the boiler needed to adequately heat the space. So, before you embark on your boiler installation project, check out our guide to deciding which is the best boiler for a 5 bedroom house. 


Let’s face it, getting and installing a new boiler is most often a big outlay and potentially not the most exciting way to spend your hard-earned cash even though it is an essential part of your home. So, it’s really important you know exactly how much you want to spend and what you expect to get for your money. So, set your budget, research the best options within that budget – and remember to take advantage of any deals, extended payment options, and grants available in your area. [LINK: https://boilerfunding.org.uk/] 

Boiler Type

There are three main types of boilers – combi boiler, system boiler and regular boiler – which one you choose will depend on your current heating set up, the size of your home, number of radiators, and number of bathrooms. Each of these types of boiler has pros and cons. 

When it comes to heating a standard 5 bedroom house, any of them could hit the mark, and the number of bathrooms, loft space, and amount of hot water used are likely to be more important considerations than number of bedrooms. So, here’s a very quick lowdown on the three boiler types: 

Combi boiler

  • Hot water on demand, but might not be able to cope with very high simultaneous demand.
  • No cold-water tank, so no loft space required. 
  • No hot water cylinder, which frees up space for other things.
  • Less pipework means reduced installation cost.

System boiler

  • Best for homes with one or two bathrooms
  • No cold-water tank, so no loft space required.
  • Constant hot water supply to multiple taps. 
  • Works seamlessly with green energy sources, meaning reduced energy costs over time. 

Regular boiler

Great for homes with old heating systems which may not cope with the increased water pressure delivered by a combi or system boiler. 

  • Best for homes with two or more bathrooms.
  • Makes use of existing cold water tanks and hot water cylinders.

Boiler Size 

Your boiler size is measure in output as Kilowatts. Sizes range from 9 to 50kw and the size you need will depend on your heating and hot water demands – the higher the kw, the better your hot water and heating supply will be. So, for a 5 bedroom house, with two bathrooms, and around 20 radiators, you would be looking at anything upwards of a 35kw boiler

Your local boiler installation team are best placed to be able to advise you on the correct size you’ll need once they do a home inspection. It’s worth noting, there is no value in ‘over-compensating’ on boiler kw output – always get the boiler most suited to your actual needs. 

Just as important to your new boiler decision as number of bedrooms, is the number of bathrooms and the likely demands on your hot water supply. If you have two or more bathrooms, or a main bathroom plus an en-suite or two and these bathrooms are likely to be in use at the same time, you need to think very carefully about the size and type of boiler you need. 

Book a boiler quote

Call our specialists on 020 8395 8616 or fill in our booking form.

Best Boiler for a 5 Bedroom House

Hopefully, we have given you plenty to think about when the time comes to replace the boiler in your five bedroom home, and helped you consider the many factors that will come into play when making a decision about which is the best boiler for a 5 bedroom house. But just in case you would like some more, here is our breakdown of the best boilers to take a look at with your installer: 

Five bedrooms, one bathroom – Combi Boiler – Vaillant EcoTEC Plus 938

Five bedrooms, two bathrooms – System Boiler – Vaillant EcoTEC plus 637

Five bedrooms, three or more bathrooms – Worcester Bosch Greenstar 40CDi Classic

Arranging Your Boiler Installation

Finally, as with all good home improvement projects, you need to find the best installer in your area to make sure you get the most from your boiler for many years to come. Word of mouth is a great way to find a reliable engineer, so talk to your friends and family about their experiences with heating engineers. 

Here at Rowlen we’re approved boiler installers and can provide first-class advice when it comes to installing the right boiler for your multi-bedroomed home, just get in touch and speak to one of our experts. 

Good luck with your new boiler and we hope you enjoy piping hot water throughout your home for many years to come!

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