James Elston

James Elston

Published June 23, 2024

Expert Boiler Installation in Otley

How many bathrooms do you have?

How many bedrooms do you have?

How many Radiators do you have?

How soon do you need your boiler?

What Type Of Boiler Do You Need?

Buying a new boiler for your home or business is a big decision, so you want to ensure you make the perfect choice. Here are a few factors to think about when deciding what type of boiler is right for you:

  • Your property’s size and layout.
  • Your budget.
  • Your property’s water system pressure levels.
  • Your daily/monthly hot water requirements.
  • Your property’s insulation features.
  • Whether or not you are connected to the gas grid.
  • Eco-friendly considerations (some boilers are more sustainable than others).

Five main types of boilers are used in the UK, including conventional, combi, electric, system, and biomass boilers. We’ll discuss each one in detail so you have a better idea of the options available to you.

Combi boiler

Do you own a small office space, apartment, or 1-bedroom house? If so, a combi boiler could be an excellent option for you. While these systems struggle to supply hot water to more than one tap at a time, their affordability and compact size make them the ideal choice for smaller properties.

Combi boilers also offer excellent energy efficiency, and this is probably why around 80% of all boilers currently sold in the UK are combi boilers. These systems can run on electricity or gas and draw water from the mains supply to provide hot water on demand.

combi boiler
system boiler

System boiler

Does your property have multiple bathrooms? If so, a system boiler could be a great choice, as they have no problem supplying hot water to several taps and showers at the same time. As they can keep up with high hot water demands, they are the perfect option for big households or large commercial properties.

System boilers are directly connected to the mains water supply, so there is no need for a cold water tank. However, you will still require a hot water tank for storing hot water. The system consists of expansion vessels and built-in pumps, which are relatively easy to install and maintain.

While some system boilers can be powered by solar panels and electricity, most still require gas or oil as their fuel source.

Conventional boiler

As one of the oldest boiler systems still in use, it is no surprise that over 23 million conventional boilers have been installed in properties across the UK. These boilers, which are also sometimes referred to as regular boilers or heat-only boilers, can provide hot water to several taps and showers simultaneously.

Conventional boiler systems require a hot water storage tank as well as a cold water cylinder, so they can end up consuming a significant amount of space. The most common fuel sources for conventional systems include LPG (liquid petroleum gas), natural gas, and oil. As these gases are flammable, it’s essential your gas boiler installation is carried out by a certified professional.

One thing that you should be aware of is that gas boilers are slowly being phased out due to their high carbon emissions. By 2033, it’s expected that all gas boilers will be banned in the UK. For this reason, a conventional boiler may not be the best long-term investment. Many people who own these units are beginning to look at alternatives.

conventional boiler
electric boiler

Electric boiler

Any boiler that runs on electricity is an electric boiler, including conventional electric boilers, electric system boilers, and electric combi boilers. The type that is right for you will depend on your hot water needs, your budget, and the size of your property.

If you don’t have a connection to the gas grid, then an electric boiler is probably the best choice for you. These units typically have lower installation and maintenance costs when compared to gas boilers. Electric boilers can also be connected to a solar panel system should you want to reduce your carbon footprint.

Biomass boiler

As the UK shifts toward more sustainable heating solutions, biomass boilers are sure to increase in popularity. These systems run on organic fuel sources, like hay, logs, wood chips, and wood pellets (all of which are significantly cheaper than fossil fuels like oil and gas).

Biomass boilers provide you with the perfect opportunity to reduce your carbon footprint while still enjoying energy efficiency and temperature control.

Unfortunately, having a biomass boiler installed can cost you £10,000 or more! That said, the UK Government offers £5,000 grants to those wanting to invest in a biomass boiler as part of their Boiler Upgrade Scheme.

biomass boiler

How Much Does It Cost To Install A New Boiler In Otley?

The overall cost of boiler installation in Otley is dependent on a variety of different factors, including:

  • The type of boiler you want installed.
  • The type of boiler you already have.
  • Whether or not your boiler needs to be relocated.
  • Whether or not your pipes and/or radiators need to be upgraded.

While it is difficult to give exact prices for boiler installations, we have provided estimated costs for residential and commercial properties in the tables below.

New Boiler Costs for Residential Homes

1-bedroom homes

Boiler typeCost (excluding installation)Cost  (including Installation)Average cost (with installation)
Conventional£750 – £1,800£1,500 – £3,500£2,650
Combi£500 – £2,000£1,500 – £3,000£2,590
Electric£590 – £1,500£1,000 – £2,795£1,790
System£600 – £1,500£1,500 – £3,000£2,500
Biomass£4,000 – £12,000£7,000 – £20,000£15,500

2-bedroom homes

Boiler typeCost (excluding installation)Cost  (including Installation)Average cost (with installation)
Conventional£1,000 – £2,500£1,800 – £4,500£3,455
Combi£700 – £2,500£1,500 – £4,500£2,750
Electric£590 – £2,500£1,900 – £3,295£2,585
System£800 – £2,000£1,500 – £4,000£2,790
Biomass£5,000 – £14,000£7,000 – £20,000£15,500

3-4-bedroom homes

Boiler typeCost (excluding installation)Cost  (including Installation)Average cost (with installation)
Conventional£1,500 – £3,000£2,500 – £4,500£3,500
Combi£1,400 – £3,000£2,000 – £4,500£3,250
Electric£1,400 – £2,500£2,000 – £3,500£2,750
System£1,000 – £2,500£2,000 – £4,000£3,000
Biomass£6,000 –  £14,000£10,000 – £21,000£16,000

5+ bedroom homes 

Boiler typeCost (excluding installation)Cost  (including Installation)Average cost (with installation)
Conventional£1,800 – £3,500£3,000 – £5,500£4,250
Combi£1,800 – £3,000£2,500 – £5,000£3,750
Electric£1,500 – £2,500£2,500 – £4,000£3,250
System£1,500 – £3,000£2,500 – £5,000£3,750
Biomass£8,000 –  £20,000£10,000 –  £25,000+£17,500

New boiler costs for commercial businesses

Small businesses

Boiler typeCost (excluding installation)Cost  (including Installation)Average cost (with installation)
Conventional£1,500 – £3,000£2,500 –  £5,000£3,750
Combi£1,500 – £3,000£2,000 – £4,500£3,250
Electric£1,000 – £2,500£1,500 – £3,000£2,250
System£1,500 – £2,500£2,500 – £4,500£3,500
Biomass£5,000 – £10,000£10,000 – £16,000£13,000

Medium-sized businesses

Boiler typeCost (excluding installation)Cost  (including Installation)Average cost (with installation)
Conventional£2,500 – £4,000£4,000 – £6,500£5,250
Combi£2,000 – £3,500£3,500 – £5,500£4,500
Electric£1,500 – £3,000£2,500 – £4,500£3,500
System£2,000 – £3,500£3,500 – £6,000£4,750
Biomass£6,000 – £12,000£11,000 – £20,000£15,500

Large businesses

Boiler typeCost (excluding installation)Cost  (including Installation)Average cost (with installation)
Conventional£3,500 – £6,000£5,000 – £10,000£7,500
Combi£3,000 – £5,000£4,500 – £8,000£6,250
Electric£2,500 – £4,000£3,500 – £7,000£5,250
System£3,000 – £5,500£5,000 – £9,000£7,000
Biomass£10,000 – £16,000£18,000 – £25,000+£21,500

What Size Boiler Do You Need?

When browsing boiler catalogues, you’ll notice that there are many different sizes to choose from. A small office could be well-suited to a small 9kW boiler, while a large commercial space may require a 70kW boiler. So how do you know which size is right for you? Here are a few factors to consider:

  • The size and layout of your property.
  • The type of property.
  • Your typical hot water requirements.
  • The type of boiler (some need higher outputs than others).
  • The number of radiators in your building.
  • Your property’s insulation levels.

It is tricky to determine the exact size that is needed for each specific situation, but we have provided estimations based on our experience.

What size boiler do residential homes need?

Number of bedroomsNumber of bathroomsNumber of radiatorsSize of boilerType of boiler 
111 – 624 kW – 27 kWCombi
211 – 1028 kW – 32 kWCombi or Electric
3 – 42 – 310 – 1635 kW – 40 kWSystem or Conventional
5 or more4+15 – 20+40 kW – 50+ kWConventional, System or Biomass

What size boiler do commercial businesses need?

Keep in mind that commercial boiler requirements vary greatly depending on the size of the property and the type of business. For example, a hotel would have much bigger heating requirements than an office building of the same size.

Size Number of hot water pointsNumber of radiatorsSize of boilerType of boiler 
Small11-924 kW – 30 kWCombi or System
Medium3 or more10-2030 kW – 40 kWSystem or Conventional
LargeOver 2020 or more40 kW – 50+ kWConventional or Biomass

What Are The Best Boiler Brands?

With so many different boiler brands out there, how do you know which ones offer high-quality, reliable products? Based on consumer reviews and the opinions of heating experts, these are our picks of the best boiler brands in the UK:

alpha boiler image


Alpha Heating Innovation manufactures a wide range of boilers, including small combi boilers and large commercial boilers. Their competitive pricing and excellent reputation also make Alpha a great choice when looking for a new boiler.

Get A Quote For An Alpha Boiler


Based in Germany, Viessmann is an innovative boiler brand that has taken the UK market by storm. Heating engineers love Viessmann’s ‘smart’ boilers that come with a range of tech-savvy features like specialised sensors and zone heating options.

Get A Quote For A Viesmann Boiler
viessman boiler image
vaillant boiler image


Valliant is another German company that has been manufacturing boilers for the past 150 years. With excellent Trustpilot consumer reviews to back up their expertise, Valliant is one of the best boiler companies in all of Europe.

Worcester Bosch

Founded in 1962, Worcester Bosch is a household name and their boilers can be found in thousands of homes and businesses across the UK. The UK-based company has won many awards over the years and is often praised for its extended warranties.

Get A Quote For A Worcester Bosch Boiler
worcester bosch boiler image

Why Choose Eco Happy?

When it comes to boiler installation, we know that you have plenty of companies to choose from. However, you won’t be disappointed when you choose the expert boiler fitters at Eco Happy. With many years of industry experience behind us, we understand the importance of prioritising customer satisfaction.

Get Your Boiler Installation Quote Today

Are you interested in investing in a new boiler? If you’d like a free quote from the expert heating engineers at Eco Happy, simply fill out the form on our website and wait for us to get back to you. Should you have any questions regarding our installation and heating services, please feel free to contact us directly.


How often should I service my boiler?

It’s highly recommended that you schedule an annual boiler service. Not only does annual servicing extend your boiler’s lifespan, but it also allows the engineers to pick up on any potential issues before they become major problems.

What should I do with my old boiler?

Most installation companies will take your old boiler away with them once they have finished installing your new one. If this is not possible, you should get in touch with your local authorities. They will be able to advise on the right boiler disposal methods for your area.

Should I repair my existing boiler or install a new one?

If you feel as though you are constantly spending money on boiler repairs and your boiler is over 10 years old, now may be a good time to replace your existing boiler. Not only will you enjoy energy savings, but you’ll also experience better (and more reliable) temperature control.

Can I install my new boiler on my own?

Boiler installations should always be carried out by experienced heating engineers with Gas Safety certificates. Don’t try to install your own boiler, as you could end up damaging your plumbing and heating system and/or injuring yourself.

Other Areas We Service Near Otley

HeckmondwikeGuiseleyHorsforthPrudhoeWood End
BramhopeBirkenshawGomersalDrighlingtonEast Ardsley
James Elston

James Elston

Boiler Expert

James Elston is the top boiler replacement and heating expert at Eco Happy. He has over 20 years of experience in the industry, focusing on Gas Safe boiler installations and offering home-heating and energy-saving solutions to homeowners across the UK. From sourcing the most energy-efficient combi boiler to providing specialist heating advice, James ensures that Eco Happy maintains the highest standards and best customer service.

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