You’ll be hard pressed to find better quality boilers for these prices anywhere else on the web, and if indeed you succeed in finding a cheaper boiler we’ll do our very best to better or match that price.
We offer a wide and assorted range of boilers that include Natural Gas Boilers , Oil Boilers , Electric Boilers and LPG Boilers . These boiler fuel systems may be available as a Combi Boiler (Combination Boiler ), a Regular Heat Only Conventional Boiler (Regular Boiler ), a Sealed System Boiler , a Storage Boiler or a Back Boiler . If this is your first time ordering a boiler from PlumbNation Heating Supplies then you may find all of this a little daunting, so we have compiled a helpful guide that explains the differences between the various types of boiler and their ideal environment – see further down the page for our guide to boilers.
The most efficient type of boiler on the market is a Condensing Boiler
When you order a Combi Boiler, a Regular Boiler, a System Boiler, a Storage Boiler or a Back Boiler from our PlumbNation Heating Supplies Boiler collection you are guaranteed free delivery to most areas in the UK. For further information, please visit our Free Shipping page.
Our Top Boiler Manufacturers
Best Buy Boiler Types by Manufacturer
Our PlumbNation Heating Supplies Boiler Guide
Combi Boilers / Combination Boilers
A Combi Boiler, or Combination Boiler, is generally considered to be the UK’s most popular type of boiler. It is a compact and highly efficient unit, giving all the heating and hot water you need with significant savings on running and installation costs.
Unlike a conventional heating and hot water system, a combi system does not store domestic hot water. It heats water directly from the cold mains, as you use it. There’s no requirement for a hot water cylinder, no tank in the loft (and so less risk of freezing and flooding) and none of the connecting pipe work. So you not only save space, but also reduce hot water costs – which can account for up to 60% of a typical domestic fuel bill. A Combi Boiler also supplies hot water at mains pressure, giving you exhilarating power showering, without the need for a pump.
When choosing a combi boiler, it is important to establish the heat output and flow rate suitable for your requirements. If you require a higher flow rate, then there are combination boilers that are specifically designed to provide this, for example the Worcester Greenstar Highflow CDi Range and the Vaillant EcoTEC Plus 937 are particularly popular, offering as much as 25 Litre per minute.
Best Buy Combi Boilers
Regular Boilers
Regular Boiler systems, otherwise known as “conventional boilers” are used in a more traditional central heating system. If you are looking to replace an old boiler, then this may be the system that you currently have.
A Regular Boiler works on the basis of “heating only” and therefore requires a separate hot water cylinder (usually located in an airing cupboard), which stores a large amount of the household cold water. There are also two feeder tanks, (usually located in the loft area). One of the tanks is for domestic hot water, which feeds through to the hot water storage cylinder. The second tank is required for the central heating. The mains cold water is fed through the expansion / header tank to the central heating system, which is heated via the boiler. This can also be called an “open vent system”.
Having a regular boiler system means that unlike a Combi Boiler system, the hot water flow rates tend to be higher as the hot water is already stored in the hot water cylinder. This allows the use of several hot water outlets being operated at the same time within the property. Due to the number of components that a Regular Boiler system requires it will use up more space than any other heating system.
Our PlumbNation Heating Supplies Boiler collection boasts a wide range of Regular Boilers from the UK’s most popular and quality assured manufacturers, such as Worcester, Vaillant and Baxi.
Best Buy Regular Boilers
Sealed System Boilers
Sealed System Boilers work in the same manner as Conventional Boilers, where they indirectly heat a separate store of domestic hot water.
Although similar in many ways, the difference between a Sealed System Boiler and a Conventional Boiler (Regular Boiler) is that the System Boiler incorporates all the of the major components built-in, including an expansion vessel and modulating pump. Generally all components are pre-wired, pre-plumbed and pre-tested for greater reliability, as well as a quicker and neater installation.
We offer a wide range of Sealed System Boilers from the very best manufacturers in the industry including Worcester, Glow Worm and Vaillant.
Best Buy System Boilers
Storage Boilers
System Storage Boilers provide both central heating and plentiful supplies of hot water. This is achieved by combining a boiler and an unvented cylinder in one unit, with all the necessary controls. That also means a dry loft, for simplicity and peace of mind.
Storage Boiler units are designed for fast and easy installation. Whilst space is freed up in the property due to their compact design, there is an added benefit of achieving mains pressure hot water from more than one outlet simultaneously, even after the full contents has been used hot water is still available instantaneously at a reduced rate.
We at PlumbNation Heating Supplies offer a wide range of Storage Boilers, from reputable manufacturers such as Glow worm, Potterton and Ideal.
Best Buy Storage Boilers
Commercial Boilers
When looking to heat a large domestic property or commercial building then a standard domestic boiler probably wouldn't have the capacities to service such demand, this is where a Commercial Boiler is your best option. When heating a commercial property, such as a small cafe / bar, sports centre, church or even a large office building, a Commercial Boiler has a range of heat outputs capable of achieving the demand.
A Commercial Boiler will essentially operate in the same way as a Regular Boiler (Conventional Boiler), in the sense that the boiler provides Low Temperature Hot Water (LTHW) to heat the radiators in a building whilst also being capable of providing indirect hot water via a hot water cylinder. Most commercial boilers are mains fed, or otherwise known as sealed systems, where there will be a need for a pressurisation unit & expansion vessel to accommodate water expansion (of which we at PlumbNation Heating Supplies can offer a full range of ancillaries to compliment our range of Commercial Boilers).
Our range of Commercial Boilers are plentiful in choice, you can choose from a Wall Hung Condensing boiler (maximum efficiency) and Floor Standing Conventional Flue Boilers from leading manufacturers such as Ideal and Potterton.
Best Buy Commercial Boilers
Back Boilers
A Back Boiler is a compact boiler that is fitted at the back of an open fireplace hearth and can be installed behind an Electric Fire, or within the chimney breast. Even though Back Boilers are fairly small in size, a Back Boiler is more than capable of producing enough hot water and central heating for the entire household if installed with an indirect hot water cylinder, this will allow homeowners to use hot water from several taps at once. Back Boilers are a reliable solution and a Back Boiler installation will usually also include a tank for the loft and a cylinder in an airing cupboard.
It is a legal requirement that Back Boiler installations must be carried out by a GAS SAFE REGISTERED engineer.
Best Buy Back Boilers
Natural Gas Boilers
The mains gas used in this country is called Natural Gas or Methane (CH4). Natural Gas is currently established as the popular fuel of choice for domestic central heating systems. Natural Gas is available via a main feed, meaning no on site storage is required. Although natural gas is the most popular fuel option in the UK, it may not be available to everyone. If this is the case, then another fuel option is required for you to run your central heating system. It is also a legal requirement that gas boiler installations must be carried out by a GAS SAFE REGISTERED engineer.
Best Buy Natural Gas Boilers
LPG Boilers / Liquid Propane Gas Boilers
Liquid Petroleum Gas is most commonly referred to as LPG. LPG is an alternative option used for homes that aren’t connected to the mains gas feed, and although it works in the same way as Natural Gas, it is slightly more expensive to run. Unlike Natural Gas, LPG is actually stored on site in a cylinder or tank, which is then supplied via a pipeline into the property. The range of LPG Boilers are less than those available in Natural Gas, however some Natural Gas boilers can be converted to LPG using the appropriate LPG Conversion Kit. It is also a legal requirement that all LPG Boiler installations are carried out by a GAS SAFE REGISTERED engineer.
Best Buy LPG Boilers
Oil Boilers / Oil Fired Boilers
Similar to an LPG Boiler, an Oil Boiler is an alternative option used for homes that aren’t connected to the mains gas feed. The Oil is stored in an Oil Storage Tank (which are also available to buy here from our PlumbNation Heating Supplies Oil Tank collection) that supplies oil via a pipeline direct from the tank to the property. A well-installed Oil Fired heating system will give you every bit as much efficiency as a gas system. Oil Boilers can be more expensive to run than Natural Gas Boilers, however with oil powered central heating you have the flexibility to switch oil suppliers if prices increase, thus keeping costs down. However, oil produces higher carbon dioxide emissions than gas so it is less environmentally friendly. It is also a legal requirement that all Oil Boiler installations must be carried out by an OFTEC registered engineer.
Best Buy Oil Boilers
Electric Boilers
Electricity is widely available to every home and can therefore be used to power your central heating boiler. Electric Boilers are actually 100% efficient for the end user since there is no heat loss. There is no need for a flue, as there is no fuel to extract and Electric Boilers are also compact, light and completely silent. Although the initial installation of Electric Boilers is fairly economical, the cost of running an Electric Boiler will cost considerably more on a day-to-day basis, as opposed to Natural Gas Boilers.
Best Buy Electric Boilers
Boiler Pack Offers
There are great savings to be had from our Boiler Packs collection, as a Boiler Pack will include the essential conponents required for a new installation. A Boiler Pack can consist of a ‘boiler, flue and digital clock’ or a ‘boiler, flue and plug-in timer pack’, etc.. Please visit our Boiler Packs page for our full range of Boiler Pack offers from Worcester, Glow Worm, Baxi, Vaillant and more.
Best Buy Boiler Packs
Boiler Flues / Boiler Accessories
A flue is a pipe or chimney that is used to extract the waste gases, from the combustion process in the boiler, to the outside of the property. The waste gases are mostly carbon dioxide and steam and in certian circumstances can be extracted through the flue terminal as a “white plume or discharge”. This is due to the fact that as with all condensing boilers, the flue gases are exhausted at around 55°C and therefore cool quicker when entering the atmosphere and in certain temperatures, can create a plume, similar to exhaled breath on a cold morning. It is this plume or wastage that needs to be extracted correctly away from the property.
There are various different flueing options available, and it is recommended that you speak to your plumber / installation team or the manufacturer, who will be able to provide expert advice on your flueing requirements.
We supply all the necessary boiler accessories that you require for your installation, these can normally be found in the Accessories section of a boiler product page or are included with a Boiler Pack.
SEDBUK Ratings Energy Efficiency Bands / Boiler Efficiency
SEDBUK (Seasonal Efficiency of Domestic Boilers in the UK) is a method for calculating the efficiency of central heating boilers, which is developed and agreed with boiler manufacturers. Its purpose is to identify the efficiency rating of boilers in an A to G scale that is simple to understand and recognise. It enables a fair energy efficiency comparison between different boilers, which are scored and placed in a banding system, the most efficient being Band A. Boilers of a higher efficiency rating mean that the least fuel is wasted, making the boiler more environmentally friendly, and more cost effective.
The current legislation in England and Wales states, that from 1 April 2005, all Gas-fired boiler installations in new or existing properties, must be condensing boilers (rated SEDBUK Band A or B). The same legislation for Oil Fired Boilers was applied as from 1 April 2007.
A Condensing Boiler is more efficient due to its ability to extract more heat from the flue gases normally lost to the environment through the flue system. As the gases pass through the heat exchanger, this extra surface latent heat within, which would normally be lost to the atmosphere, is instead released and applied to the system. It is this ability to extract as much heat as possible from the gas it burns that gives the condensing boiler an exceptionally high level of operating efficiency.
We at PlumbNation Heating Supplies offer the definitive range of condensing SEDBUK Band A / Band B rated Boilers so that all our customers benefit from having the highest rated efficiency boilers on the market today, to save the environment and save money on fuel bills.
SEDBUK Rating Scale
BAND A: 90% - 91.3% BAND B: 86% - 90% BAND C: 82% - 86% BAND D: 78% - 82% BAND E: 74% - 78% BAND F: 70% - 74% BAND G: Below 70%
