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Last updated: 14 April 2024

Best Cheap Boiler Deals 2024: Prices & Comparison

Best cheap boilers

Combining the supply and installation costs of a new boiler can become a daunting cost for many. That’s why, when upgrading your boiler or heating system, keeping to an efficient budget can help to limit unnecessary mounting costs. While new boilers can have upfront costs of up to £3,500, this article is here to help you find the best cheap boiler for your home.

Of course, new boiler costs don’t stop at this initial purchase, which is why we’ve also outlined some key installation and running costs for you to keep in mind. We’ve also compared these with other heating systems and outlined some tips to find cheap boiler installation deals. This way, you can truly know where your money is best placed.

To make the best choice, and to ensure a professional installation, consulting a licensed heating engineer in your area is crucial. Finding one can be a days-long search involving assessing their services and comparing prices. We understand that not everyone has time for that, which is why we offer a better way.

We can save you both time and effort by doing the vetting for you. Simply fill out our 30-second form and we can provide you with up to 3 free, non-binding quotes from professional installers in your area. That way you can choose the best offer for you. Click below to request quotes today!

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Best boilers under £1,000

New boilers tend to cost between the range of £500 to £3,500 including VAT. However, in this article we have compiled some stand out budget boiler options that remain under £1,000. From the top 5 boiler manufacturers operating in the UK, we’ve highlighted their best budget boiler models for sale and their respective prices. 

There are quite a few options but we’ve down our picks for the best 3 in the video below:

3 Best Boilers for £1000 in the UK (in 2024)
Best cheap boilers under £1,000

To find the best and cheapest boiler combination, you must also consider some key indicators besides a reasonable price. These include:

  • Boiler size (kW): Despite its name, boiler size refers to a boiler’s energy output capabilities. The correct boiler size will depend on your home’s specific energy requirements. This can be estimated by the number of radiators around your home. For every radiator, allow 1.5-2 kilowatts (kW) of power. Getting this right is crucial in the long term, as you don’t want a boiler that’s too powerful and wastes energy, as this will reflect in your monthly bills. Likewise, a boiler that’s too small will struggle to provide adequate heating and domestic hot water. 
  • Efficiency: Boiler efficiency measures how efficiently your boiler converts fuel into usable energy. Since 2005, newly installed boilers must have a minimum of 92% efficiency, or higher. This is thanks to modern condensing technology which captures any extra heat that might escape with waste gases during combustion. This heat can then be converted into energy, allowing you to make significant long-term savings when compared to outdated and inefficient boilers. 
  • Warranty: New boilers tend to come with standard warranties between 2-5 years, and sometimes up to 10 years. In most cases, these are subject to certain terms and conditions and come with various options to extend it further. A lengthy warranty period will give you peace of mind that you’re covered for the majority of the boiler’s lifetime, should it run into issues. 

Additionally, consulting a professional heating engineer will give you the peace of mind that your choice of cheap boiler will perform at its best. When it comes time to install, we recommend consulting multiple heating experts to learn about the best installer rates in your area. 

This process can be overwhelming to go through alone. An accurate picture of your options would involve finding multiple locally based installers to assess your home and provide tailor-made quotes for their installation services. It can be difficult and stressful to keep tabs on this process when there are so many options out there, with so many quotes to consider. 

Luckily, we can make this process extremely easy for you. Our network of trusted installers are all registered with the appropriate licences and vetted by us. With up to 3 installer quotes in 48 hours, you can secure the best deal in a comparatively short amount of time. Simply fill out the form below to request free, no-obligation quotes today! 

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Best cheap combi boilers under £1000

Combi boilers are best suited to small homes and flats since they are compact. From one unit, they provide heating and hot water at local mains pressure. 

Combi boilers have the biggest selection of affordable options under £1,000, as listed below. This might help explain their popularity among British homes. 

Combi boilers offer two outputs, one for central heating (CH) and one for domestic hot water (DHW). Providing hot water requires more power from the boiler so its output will be higher, making it a better indicator of the boiler’s overall size. 

Below is a table of cheap combi boilers for sale in the UK that comes with a DHW output of 24-33kW, meaning homes with up to 15 radiators and one bathroom will find something suitable. 

Boiler modelDWH outputsEfficiencyWarrantyPrice
Baxi 200 Combi24-28kW93%2 years£730 – £775
Baxi 400 Combi24-28kW93%2 years£730 – £790
Baxi Duo-tec Combi24, 28, 33kW92%7 years£755 – £965
Worcester Bosch Greenstar 200025, 30kW93%5 years£830 – £910
Viessmann Vitodens 050-W25, 30kW92%3 years£860 – £985
Vaillant ecoFIT Pure Combi25kW94%2 years£910
Worcester Bosch Greenstar Si Compact25kW94%5 years£950
Baxi 600 Combi24kW93%7 years£955
Ideal Logic Max Combi Boiler24kW94%10 years£960
Ideal Logic+ Combi Boiler24kW94%7 years£990
cheapest combi boiler ideal

Best combi boiler in the UK under £1000: Ideal Logic Max Combi (24kW) | £960

This cheap combi boiler from Ideal comes with an output of 24kW, making it suitable for smaller homes with up to 10 radiators and 1 bathroom. 

It stands out as the best budget combi boiler for its 10 years standard warranty. This shows that Ideal has full confidence in their product, indicating that you can trust that it won’t break down very easily. 

This affordable combi boiler also offers 94% energy efficiency. This means for every £1 you spend on energy, only 6p is lost. This gives it an ErP (Energy-related Products) rating of A for heating and hot water.  

Some other stand out features include; 

  • Ideal system filter: Prolongs the lifetime of your boiler by reducing debris build up through the system.
  • Optimal control settings: Including large digital display and compatibility with a range of Ideal controls, including wireless thermostats.
  • Easy installation: Compact dimensions and low lift weight allow it to fit discreetly inside a standard kitchen cupboard.
  • Hydrogen ready: Compatible to run on 20% hydrogen blend, as soon as the new sustainable fuel comes to market.

To make the best suited decision for your home and to ensure a professional installation, consulting a licensed heating engineer in your area is strongly recommended. Luckily at GreenMatch, we can save you hours of painstaking research time by connecting you to our network of licensed and trustworthy installers, all vetted by us.

Simply fill out our easy form, and within 48 hours you will be provided with up to 3 installer quotes so you may secure the best deal for your home with minimal effort!

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Best cheap system boilers under £1000

System boilers include an external hot water cylinder for hot water storage. This allows them to meet the energy demands of larger homes at local mains pressure. 

System boilers tend to start at higher price points than other boiler types, so the range of system boilers from the top 5 manufacturers under £1,000 is quite limited. That’s why we’ve included some models up to £1,050, for those who would like a system boiler and are willing to go slightly over budget. 

These boilers have heating outputs available from 9kW to 18kW. This makes them suitable for smaller homes with up to 10 radiators and 1 bathroom. Smaller homeowners should bear in mind that they will also have to find space for the additional hot water cylinder. 

Boiler modelCH outputsEfficiencyWarrantyPrice
Worcester Bosch Greenstar i System9kW94%5 years£900
Vaillant eco FIT Pure System12kW94%2 years£995
Greenstar 4000 System12kW94%5 years£1,020
Baxi 600 System15-18kW93%7 years£1,020 – £1,045
Ideal Logic+ System Boiler15kW93%7 years£1,030
best boiler deals baxi

Best system boiler under £1000: Baxi 600 System (18kW) | £1,045

This system boiler by Baxi comes with a heating output of 18kW, making it the most suitable to run alongside a hot water cylinder. The 600 system range is 93% efficient, with grade A for heating and hot water. 

This boiler also offers the longest warranty from this system boiler range, meaning you’re covered against any issues that will come up over the majority of the boiler’s lifetime. 

Some of its main features include: 

  • Easy maintenance: Front access to internal components saves service and maintenance time.
  • Choice of flue pipes: Available in multiple lengths allowing extra flexibility with where you can install.
  • Compatible with Megaflo Eco cylinder: Highly popular hot water cylinder that delivers remarkable efficient hot water flow rates.
  • Hydrogen ready: Compatible with 20% hydrogen fuel.

Best conventional boiler under £1000

Conventional boilers (aka regular or heat only) are the oldest of all the boiler types and are best suited for larger homes. These boilers will require a hot water cylinder, as well as a cold water feed tank. This tank feeds mains water to the rest of the system to be heated and distributed. Without the addition of a system pump, water pressure can be low. 

Because these additional elements are required for a conventional boiler to operate, smaller homes might struggle to find the space for such a heating system. Therefore, in this case it may be more feasible to find a combi boiler that can provide the same amount of energy, but takes up far less space. 

With that being said, homes with conventional boilers already in place may find it more affordable to install like-for-like replacement rather than switching to a new boiler type. With this in mind, we’ve provided the range of the best conventional boilers available on the market under £1,000.

Boiler modelCH outputsEfficiencyWarrantyPrice
Baxi 400 Heat12, 15, 18kW93%5 years£700 – £850
Vaillant ecoTEC Plus Heat Only12, 15kW94%5 years£870 – £975
Worcester Bosch Greenstar Ri9kW92%5 years£880
Baxi 600 Heat13-16kW93%7 years£920 – £965
Logic+ Heat12, 15kW93-94%7 years£945 – £985
Vaillant ecoFIT Pure Gas Heat Only12, 15kW94%2 years£950 – £960
Vitodens 100-W11kW94%5 years£985

Best conventional boiler under £1,000: Baxi 400 Heat | £850

best price boilers baxi

After putting it to the test, this conventional boiler model from Baxi is the cheapest boiler with the highest output, giving you a great value for your money. 

It comes with 93% energy efficiency, meaning only 7% of energy is wasted from combustion and heat loss. It’s also rated A for heating and hot water. This boiler comes with a 5 years standard warranty. Baxi does offer options to extend this at your request. 

Some of its key features include:

  • Rear flue option: Makes for a neat appearance.
  • Choice of flue pipes: Available in multiple lengths allowing extra flexibility with where you can install.
  • Compatible with Megaflo Eco cylinder: Highly popular hot water cylinder that delivers remarkably efficient hot water flow rates.
  • Hydrogen ready: Compatible with 20% hydrogen fuel.

As you can see, there are many great cost-effective boilers to choose from. Trying to figure out which cheap boiler is best for your home overall can be overwhelming and take up hours of your free evenings. Thankfully, our team at GreenMatch can offer you an easy alternative.

All you have to do is fill in our simple 30-second form and we’ll connect you with up to 3 qualified and available heating engineers from our vetted network. You can then compare their quotes and choose the best deal – saving you money. What’s more, our service is completely free and non-binding. Click the button below to get your boiler quotes.

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Cheap boiler installation

The price of a cheap boiler installation depends on a range of factors,  such as the time of year when purchasing a boiler, and the complexity of system and installation job. Put simply, the easier the boiler installation, the less parts and labour it will require. That’s why one of the best ways to limit mounting costs is to install a replacement boiler of the same type, rather than switching to a different type. 

Unless it’s necessary, you should also install the boiler in the same location as the previous one, so that the pipework, fittings and fixtures can remain in place.  

For accurate and fair installation quotes, it’s best to consult a professional heating engineer who will be able to assess your needs and offer you a detailed quote for their services. To make the most of the best boiler deals in your area, you should ideally find multiple quotes and compare them before choosing the right installer for the job on your home.

What is the cheapest heating system to install?

cheap boiler collage

The average cost for boiler installation can be anywhere between £1,500 and £3,000, but can reach up to £5,000. This puts the average price range for supply and installation between £2,000 – £6,500+.

The cheapest boiler installation will require the least parts and labour, and will take the least amount of time. This makes a like-for-like boiler replacement one of the cheapest heating systems to install for an entire property. 

The most complex installations will be at the higher end of this price range, where you are switching boiler type or moving your boiler to a new location.

Besides cheap gas boilers, you may also be considering some alternative heating systems. Below we’ve provided the price ranges for these, which includes supply and installation. 

Alternative options for heating:

  • Electric underfloor heating | £40 – £90 per m²
  • Electric storage heating | £800 – £2,000 
  • Infrared panels | ​​£120 – £600 per panel 

Alternative options for hot water:

Alternative options for heating and hot water: 

Among these options, electric storage heaters are the cheapest to install for an entire property. Infrared panels could also be considered the most affordable, depending on how many rooms you wish to install them, and how much they cost within the price range we’ve provided.

What type of boiler is cheapest to run?

Beyond the initial costs for supply and installation, it’s also important to consider the running costs of new boilers and other heating systems. 

Under the current energy price cap, our research shows that natural gas remains the cheapest energy source to fuel your heating system, at 6p/kWh (kilowatt-hour). 

Overall, attaining the cheapest boiler running costs will depend on multiple factors, such as the size of your home, your heating and hot water requirements, and especially the type of fuel you use to power your heating system. 

Cheapest boiler to run

The cheapest boiler to run is the Ideal Logic Max Combi 24kW boiler. Not only does it have a 94% efficiency, it also has a 10 year warranty.

What makes this the cheapest boiler to run is the combination of it having a high efficiency and it running on natural gas. While electric boilers tend to have efficiencies that go as high as 99%– meaning it uses less total kW – natural gas costs cheaper per unit. Gas costs 6p/kWh while electricity (standard rate) costs 24p/kWh.

If you measure running cost in terms of environmental impact, then an electric boiler is more environmentally friendly if you use a renewable energy source. Gas boilers emit greenhouse gases, such as carbon dioxide, when they burn natural gas.

What is the cheapest heating system to run in the UK?

To determine which heating system is cheapest to run, there are many variables to consider. 

These include the price of fuel under the current energy price cap, in pence per kWh. As well as the fuel efficiency, which affects running costs since the most efficient system will use less fuel. Gas and electricity also have a standing charge of above £300 over the course of the year. 

With these in mind, we’ve calculated the annual running costs of various types of heating in the UK. These costs relate to the annual average heat demand of 12,000kWh (2-3 bedroom house), according to the latest Typical Domestic Consumption Values, provided by Ofgem

Heating systemPence per kWhEfficiencyAnnual running costs
Gas6p/kWh92-95%£725
Oil7.1p/kWh92-95%£852
LPG8.1p/kWh92-95%£972
Biomass (wood pellets)10.5p/kWh89-91%£1,260
Electricity24p/kWh99-100%£2,940
Calculations are based on data from Ofgem and Energy Savings Trust (April 2023). The annual running costs account for the lower end of the efficiency percentages, thus the actual costs may differ.

If saving on energy is your priority, other alternative energy systems may be worth considering as well. For example, in the case of heat pumps, despite energy costing more per kWh, the exceptional energy efficiency of these energy systems (300-400%) comes out to 3-4 times the heat produced per kWh, resulting in less annual costs to run than traditional gas heating, despite costing more per kWh. Therefore, when comparing heat pumps vs boilers for the average household, a heat pump will offer average annual savings up to £480 compared to gas boilers. 

Get the best boiler deals in the UK

There are various ways to reduce your overall spending when it comes to best value boilers supply and installation costs. We’ve highlighted some of these below: 

  • Seasonal deals: The best time of year to install a new boiler is during the spring and summer months. This is because boilers are more likely to break down and need replacing over the winter when they are in operation. Therefore, demand for new boilers is less in the lead up to winter. It’s also smart to shop around for some time before selecting a new boiler so that you can keep an eye out for discount boilers for longer. 
  • Local installers: An installer in your area can supply parts and labour more easily and efficiently than nationwide companies, meaning they will likely offer the cheapest boiler installation rates.
  • Compare quotes: We recommend comparing multiple quotes from local installers so you can best see what conventional, system, or combi boiler deals are available in your area. 

Sourcing multiple quotes takes considerable time and effort with so many options available to you. Rather than spending hours of your time researching  the best boiler prices and best new boiler deals in the UK, let us help you find the best value boiler for your home.

By clicking below, you can fill out our simple form in just 30 seconds and request quotes from up to 3 local installers, all vetted by us. All quotes are free and come with no obligation to commit to any of the installers offering you their services.

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Ciaran Wark
Written by Ciaran Wark, Writer

Ciaran is a content writer at GreenMatch. Whether writing about sustainable aviation fuel or heat pumps, Ciaran has passion for informing readers about pivotal technologies that are reshaping our world.

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