New Boiler And Radiators Cost

new boiler and radiator cost

Your boiler should be one of the essentials items you should have in great shape with winter approaching. Suppose you have purchased a new home with an old boiler or  heating system or currently renovating your home. In that case, you should consider replacing your central heating system with a new boiler, pipework, radiators, and heating controls. But how much will it cost to get a new boiler installed in your home? This article should help you with everything you need to know before purchasing your new boiler system. 

Cost Of A New Combi Boiler & 7 Radiators

A new central heating system includes a boiler, radiator, pipework, and heating controls. The cost of installing a boiler on its own is between £1,500 and £3,500. However, this will depend on the type of boiler, warranty period, and installation complexity. The cost of labour in your region is another factor that influences boiler installation costs. A straightforward installation would usually cost less, while a complicated task like installing a new boiler should take you towards the higher end of the scale. If you are definitely needing to get new radiators and pipework then this new boiler cost will be much higher.

Average Cost Of New Boiler & Radiators

Average cost of a new boiler and 7 radiators is around £3,000 depending on the type of boiler and types of radiators you want. There are hundreds of different types of boilers and radiators in different styles. There are 3 different types of boiler and all the different styles of radiators. There are the standard traditional white radiators, wrought iron radiators and new contemporary radiators in and colour you want. 

What types of radiators are there and how much do they cost?

The most common types of radiators are central heating radiators. These can cost anything from £15 up to £1,000. Radiators are basically hollow metal containers that allow hot water from your boiler to be passed through which heats up the air around it. How quickly the air around the radiator heats up will depend on the type of radiator, what they are made of, and how big the radiators are.

Single panel radiators £15 to £500

Single panel radiators are slim in design and are widely used in homes across the UK. They are often ridged to increase surface area to help heat more of the air around them when the hot water is circulated around them by a boiler.

Double panel radiators – £30 to £1,000

Basically the same as a single panel radiator but are more bulkier and cover more surface area and contain more hot water for faster heating of a room or area.

Column radiators – £100 to £1,200

These are more traditional style radiators in the wrought iron style that have lots of separate colums and gaps in between each column. Although these are old fashioned they are very desirable but cost considerably more.

Heated Towel Rails – £25 – £1,500

These are common place now in most bathrooms across the UK. They get very hot due to their conducive nature but also look great. They have lots of separate horizontal bars for which to hang several towels over to warm up and dry.

Cost Of Installing A New Boiler & Radiators

Boilers are placed under three categories. The boiler suitable for your home would depend on various factors such as the size of your household, the size of your property and budget.

Combi boilers

A combi boiler warms water from the mains and circulates through the central heating system or the taps. These boilers are suitable for homes with 1 or 2 bathrooms. Combi boilers are priced between £1,500 and £2,750, whereas system boilers retail for £1,600 – £2,900. On the other hand, ordinary or heat-only boiler retail for £1800 – £3,200; making it a more affordable choice. However, it is important to note that the prices are based on the brand, model, and any additional costs like installation.

In the case where you would want to change your combi boiler, the installation costs may vary. This is due to a variety of factors, such as: 

  • Amount of new pipework that requires adding
  • If you need to move your boiler – how far it needs to be moved
  • Complication around your boiler outlet
  • The company you select to install your new boiler
  • The Warranty length
  • What floor your heater is on since flats would necessitate scaffolds
  • Your location 

System Boiler Costs 

A System Boiler is positioned between a combi boiler and a conventional boiler. Water is heated from the mains, similar to a combi, but instead of flowing into the tap, it is stored in a hot water container. 

Upgrading a System Boiler is relatively more expensive than a Combi Boiler which is usually priced at about £1,600 and offers a low five-year warranty. If you are going for a mid to high-end boiler system, you should expect a price between £1,900 to £2,900. However, you should remember that these prices depend on the model and manufacturer. 

Regular or Heat Only Boiler 

This type of boiler consists of three components; a boiler, a separate tank for hot water, and another for cold water. Conventional boilers are supplied from a storage tank containing cold water. An expansion tank is sited close to the tank containing the cold water and consistently keeps the right amount of water in the heating system. These boiler systems are suitable for large homes with more than three bathrooms since they are created to meet high demands for hot water. 

Boiler Brands

Finding the ideal type of boiler for your home an essential factor to consider when looking for a new heating system. When exploring the types of boilers, you will come across various brands with each of them making a good case for why they are the best. Here are a few you should consider.

Worcester Bosch Greenstar I

Greenstar is the lead choice of boilers produced by Worcester Bosch. They were made to meet the warming and high temp water usage requirements of both small and medium-sized homes. The available boilers are Conventional, System and Combi boilers. It has a seven-year warranty and is available in central heating outputs from 9.2 to 30kw.

Vaillant ecoTEC Plus

One of the main benefits of Vaillant ecoTEC Plus boilers is their efficient performance. There is a suitable model for almost every home or property with a broad scope output ratings offered across all boiler varieties. These boilers supply water within five seconds,  innovation to lower your energy bills and a warranty between 5-10 years. It also has an increase in reliability and efficiency due to fitted steel heat exchanger.

Baxi 800

The Baxi 800 boilers are built to offer significant dependability and enhanced performance with their range of 800 combi and system boilers. Its compact design allows for an installation within a kitchen cupboard. It’s Adey Micro2 magnetic system filler, protects the central heating system. Baxi 800 boilers offer a 10-year warranty.

Ideal Vogue Max

Ideal has an incredible reputation as a leading manufacturer of boiler systems and has demonstrated its popularity throughout the years. Both the Vogue Max and Logic Max boiler ranges include a suitable model for most property types. The Vogue Max design offers a quick installation process, and its boiler frost shield keeps units installed in lots and garages operating over winter. These boilers have a 10-12 year warranty.

What Boiler Size Do I Need For My Radiators?

Finding the right boiler for your property depends on several factors such as the size of your property, the number of rooms, and bathrooms. When replacing your boiler, it is essential to avoid picking the same size as your current model. The size of a boiler is not measured in accordance with its length or width, but by the power it generates in kilowatts(kW). Therefore, the bigger the kilowatts, the bigger the size. 

For a boiler in the range of 12 and 15Kw, ten radiators will be ideal for heating your home compared to a medium-sized property, which requires an 18kw boiler to run between 10 and 15 radiators. More so, the number of radiators a 24kw boiler heats will depend on its type. For example, a Combi Boiler in the range of 24 and 27kw can control up to 10 radiators, while a 24kw warmth in the system model or heat only can take up to 15 radiators. 

For a System or Conventional boiler, any size between 27 and 40kw is enough to keep between 20 radiators pleasant and hot. Then again, 30kw heat-only and system heaters can warm 15 to 20 radiators. For a large household, a boiler model of 35kw is proficient in heating up to 20 radiators. 

New Gas Boiler And New Radiator Cost

84% of the UK’s 27 million homes are connected to the gas grid, which implies they can have a gas boiler automatically fueled. How many radiators you have in your home will affect the size of the boiler in your home and the amount of gas used. Properties in the rural areas which have not been linked to the gas network will need to utilise alternative fuel like electricity, gas, or biomass for their boilers. Despite this, most homeowners are settling for boilers that use renewable energy like biomass to check their carbon emissions. 

How Much Does It Cost To Install A New Boiler & Radiators UK?

Typically, the cost of installing a new boiler is around £500, which includes replacing a boiler with a new model while using already existing water pipework and gas. Suppose you are looking to change the central heating system comprising the boiler, thermostat, and rerouting the radiator water lines and gas supply pipe. In that case, you should expect to pay over £3,000. 

Cost Of The Various Types Of Radiators And Valve 

Manual Radiator Valves

A manual radiator valve is easy to use. The valve can easily be turned “On” or “Off” and keeps the radiator at a consistent temperature. Despite being easy to use, manual radiator valves are less energy efficient because of the steady temperature and water stream. Generally manual valves are more appropriate for use in rooms fitted with a reliable thermostat. There are various types, including the chrome angled radiator, Torino chrome, white bologna radiator, and Arroll UK manual radiator valve costing between £12 and £47. 

Thermostatic Radiator Valves

A thermostatic radiator valve (TRV) has an inbuilt wax or liquid-filled sensor in its head, which can adjust to the radiator’s temperature by either increasing or decreasing the flow of water through the radiator. This makes TRVs more energy efficient compared to the manual radiator valve. However, it is not ideal for use in rooms with a thermostat to avoid causing conflicts in room temperature readings. Among popular brands of TRV is White chrome angled TRV, Drayton TRV, and Cassellie RVA, pricing from £8 to £33.

Lockshield valve 

A Lockshield valve is ideal in controlling the flow of water emerging from the radiator. The Lockshield is additionally intended to help balance a radiator to ensure efficient heating and at a similar rate as the water being dispersed equally in the system. Lockshield is relatively less expensive than the manual radiator valve and TRV with a price ranging between £5 and £20 depending on its features.  

The prices differ significantly depending on the type of boiler system you choose and the quotes you are offered to have your new boiler system installed. These prices vary due to several things; however, you should seek additional advice to determine what is most suitable for your property. Visit to learn more information about the boiler systems. 

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