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Compare Warmflow Boilers Prices & Reviews

Warmflow Boilers logo
Warmflow Engineering Co Ltd is based in Lisburn, Northern Ireland, and has been trading for over 40 years.

Heating product specialists, they attribute their success and longevity to three key priorities: ‘Quality manufacturing, quality sales support and quality back up service.’

This commitment to quality begins with the smallest components of their boilers. Built on their £2.5million robotic manufacturing site each boiler benefits from the proven technology of a Riello burner, the latest in temperature control flue systems and CAD, CAM and sheet metal software.


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Warmflow produce both Combi and System oil boilers for indoor and outdoor installation and have been designed with reliability, affordability, efficiency and the environment as priorities.

Warmflow boilers are highly efficient in operation and are ErP ‘A’ rated making them an environmentally friendly choice. Combining economical running costs with 5 year heat exchanger warranty makes Warmflow an ideal choice for oil-fired heating. Get quotes for a new Warmflow boiler.

Warmflow boiler types: CombiSystem

Warmflow boilers are available in the following fuel types: Oil

Warmflow Combi Oil Boilers & Prices

What Warmflow Utility Combi Boilers lack in bulk they more than make up for in power.

At less than 60cm wide they are similar in size to most standard kitchen appliances but are still capable of producing over 18 litres of hot water every minute.

Designed with the latest twin pump technology and an integral thermal heat store within the boiler casing, the boilers are able to provide plenty of hot water as and when you need it, as well as helping to keep your heating costs to a minimum.

They are the perfect size for any kitchen or utility room and are finished in stylish, pre-coated white casing.

The heat exchanger is easily accessible making it simple to service and the Riello burner ensures quiet functionality.

In addition, these boilers have been designed with a low return water temperature which is perfect for homes with underfloor heating.

The Kabin Pak Combi is an outdoor boiler with a very similar specification to the Utility HE Combi model.

It includes all the same great features as the indoor Utility HE model but is built to withstand the great outdoors.

Both the Utility HE Combi and KombiPak Combi are available in three output models: 15-21kW, 21-26kW, 26-33kW.

Benefits of a Utility HE Combi Oil Boiler (Indoor)

Warmflow Kabin Pak HE Combi Oil Boiler 21-26Kw

  • Compact sizes make combi boilers perfect for smaller properties
  • Ideal where there is little or no loft space
  • No need for a hot water cylinder allows increased living space
  • No cold water storage tank frees up a loft for conversion
  • No risk of loft pipework freezing
  • Less pipework in the home makes installation typically cheaper.
    Front servicing
  • Complete with circulating pump, filling loop, pressure gauge and 12 litre expansion vessel
  • Integral thermostatic mixing valve
  • Suitable for use with conventional flues or with the multi-optional HE ‘Easy-Fit’
  • Balanced Flue System
  • Riello RDB2.2 burner
  • Optional 7-day digital programmer, for installation within the control panel

Benefits of Kabin Pak Combi Boilers (Outdoor)

  • Perfect for properties with very limited indoor space
  • Stylish, IP45 rated, green weatherproof casing
  • Front servicing allows maintenance
  • Complete with circulating pump, filling loop, pressure gauge and 12 litre expansion vessel
  • Integral thermostatic mixing valve
  • Multi-optional low-level conventional flue and terminal guard supplied as standard
  • Riello RDB2.2 burner fitted as standard
  • Frost protection thermostat fitted as standard
  • Supplied with thermostat, flue system, and terminal guard
  • ErP A rated
  • Ideal for new or replacement installations

The Price of Warmflow Combi Boilers

Warmflow boilers are built from the very best quality components and are a great value choice for your combi boiler but it’s still important to get at least three comparative quotes from experienced and highly rated installers.

Send us an enquiry and we will put you in touch with three of the best quality installers in your area for a no obligation quote. Get quotes for a new Warmflow boiler.

Compare the complete range of Warmflow Oil Combi boilers prices…

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Warmflow Kabin-Pak Combi KC70HEE 21kW Oil Boiler 21kw 89.1% 2 years £1995
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Warmflow Kabin Pak Combi KC90HEE 26kW Oil Boiler 26kw 89.5% 2 years £1835
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Warmflow Kabin Pak KC120HEE Combi 33kW Oil Boiler 33kw 89.1% 2 years £1985
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Warmflow Utility UC70HEE Combi 21kW Oil Boiler 21kw 89.1% 5 years £1345
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Warmflow Utility Combi UC90HEE 26kW Oil Boiler 26kw 89.1% 5 years £1795
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Warmflow Utility UC120HEE Combi 33kW Oil Boiler 33kw 89.1% 5 years £1465
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Warmflow System Oil Boilers & Prices

As with all system boilers, this model has no need of a bulky cold water tank in the loft – however it does make use of a hot water cistern which is the key difference between a combi and a system boiler.

The boiler is accompanied by a system kit which includes a pre-assembled hot water cistern, pressure gauge, pressure hose and filling loop.

The hot water cistern can be kept out of the way in an airing cupboard providing a constant supply of hot water ready for you to use whenever you need it.

The KombiPak System is an outdoor boiler with a similar specification to the equivalent Utility HE indoor model. It includes all the same great features as the indoor Utility HE but is built to withstand the great outdoors.

Both the Utility HE System and KombiPak System are available in three output models: 15-21kW, 21-26kW, 26-33kW.

Benefits of Warmflow System Oil Boilers

Benefits of Utility HE System Boilers (Indoor)

Utility HE System oil boilers 26-33kW

  • Ideal for homes with more than one bathroom
  • Hot water supplied evenly to all taps at the same time
  • No risk of pipes or tanks in the loft leaking or freezing
  • Energy efficient for lower fuel bills
  • 5 year warranty
  • Multi optional flue system
  • Fully protected, high quality olive green casing
  • Multiple flue options as standard – points on the left, right, and rear
  • Easily converted to conventional flue
  • Supplied with thermostat, flue system, and terminal guard
  • Riello RDB burner supplied for total reliability and peace of mind
  • ErP A rated
  • Ideal for new or replacement installations

Benefits of KabinPak System Boilers (Outdoor)

  • Ideal for homes where indoor space is very limited
  • Ideal for homes with more than one bathroom
  • Hot water supplied evenly to all taps at the same time
  • No risk of pipes or tanks in the loft leaking or freezing
  • Energy efficient for lower fuel bills
  • 5 year warranty
  • Multi optional flue system
  • Fully protected, high quality olive green casing
  • Multiple flue options as standard – points on the left, right, and rear
  • Easily converted to conventional flue
  • Supplied with thermostat, flue system, and terminal guard
  • Riello RDB burner supplied for total reliability and peace of mind
  • ErP A rated
  • Ideal for new or replacement installations

Review the Costs of Warmflow System Oil Boilers

How much you spend on your boiler depends not only on your budget but also on what you need it to do.

If you’re not sure, you can always take advice from a qualified central heating engineer.

You’ll need to contact more than one to get quotes for installation too so that you can be sure you’re getting the best deal from your new heating system Get quotes for a new Warmflow boiler.

Compare the complete range of Warmflow Oil System boilers prices…

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Warmflow Kabin Pak KS70HE System 21kW Oil Boiler 21kw 90.7% 2 years £1417
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Warmflow Kabin Pak KS90HE System 26kW Oil boiler 26kw 90.8% 2 years £1790
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Warmflow Kabin Pak KS120HE System 33kW Oil boiler 33kw 90.7% 2 years £1430
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Warmflow Utility US70HE System 21kW Oil Boilers 21kw 90.7% 5 years £1175
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Warmflow Utility US90HE System 26kW Oil boiler 26kw 90.8% 5 years £1585
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Warmflow Utility US120HE System 33kW Oil boilers 33kw 90.7% 5 years £1510
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Warmflow Regular Oil Boilers & Prices

The Warmflow Regular oil boilers are ideally suited for homes that already have a traditional heating and hot water system including a separate hot water cylinder which is often kept in an airing cupboard.

These boilers also need a cold water storage tank in the loft to feed the hot water cylinder as well as an expansion tank to maintains the water level of the central heating system.

The compact size and smart design of Greenstar regular boilers means that they will look great in any home, with several options readily fitting into a standard kitchen cupboard.

Warmflow refer to their Regular boilers as Standard models and they produce 3 ranges for a range of installation options:

  • Boilerhouse (suitable for garage or outhouse installations)
  • Utility HE (suitable for indoor kitchen or utility installations)
  • KombiPak (suitable for outdoor installations)
  • The Boilerhouse Standard is available in 3 outputs: 15-21kW, 21-26kW, 26-33kW. The Utility HE Standard and KombiPak Standard are available in four output models: 15-21kW, 21-26kW, 26-33kW and 33-44kW.

    Benefits of Warmflow Regular Oil Boilers

    Benefits of Boilerhouse Standard Boilers (Garage or Outhouse)

    The Boilerhouse HE range has been designed for boiler house and garage applications and or for indoor installation. The Boilerhouse Standard Boilers (BHE) are supplied with a pre-wired, factory-fitted burner and thermostat. Only one IE320 mains socket (supplied) needs to be wired on site.

  • Outputs up to 33kW
  • Finished in blue leathergrain casing
  • Compact & robust
  • Front servicing access
  • Suitable for use with conventional flues or with the multi-optional HE ‘Easy-Fit’
  • Balanced Flue System
  • Riello burner fitted as standard
  • Benefits of Utility HE Standard Boilers (Indoor)

    Warmflow’s Utility Standard Boilers (UHE) are pre-wired with a factory-fitted burner and thermostat. This means only one IE320 mains socket (supplied) needs to be wired on site. It also features a multi-optional flue system which can be routed through the top, back, left or right hand side of the casing.

  • Outputs from 15-44kW
  • Designed to fit under standard work surfaces (models up to 120HE)
  • Stylish, pre-coated white casing
  • Front servicing access
  • Suitable for use with conventional flues or with the multi-optional HE ‘Easy-Fit’
  • Balanced Flue System
  • Riello RDB2.2 and 3.2 burners fitted as standard
  • Optional 7-day Digital Programmer
  • Benefits of KabinPak Standard Boilers (Outdoor)

    Warmflow’s KabinPak range is designed for homes where space is restricted as you can install it outside. It is fully insulated and protected from the elements with a grey finish to help it blend in with its surroundings.

  • Available in outputs from 15kW to 44kW
  • High quality anthracite grey coating
  • Suitable for outdoor installation
  • Protective casing meets IP45 Rating
  • Review the Costs of Warmflow Regular Oil Boilers

    Oil boiler prices will vary depending on which brand you choose and the type and size of boiler you need. The cost of installing it will also vary as each installer will provide a slightly different quote.

    The best way to ensure you get the most competitive price is to compare multiple quotes; that way you can be sure you’re getting the best deal from your new heating system and a range of professional advice to consider. Get quotes for a new Warmflow boiler.

    Compare the complete range of Warmflow Oil Regular boilers prices…

    Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
    Warmflow Boilerhouse B70HE 21kW Regular Oil Boiler 21kw 90.7% 7 years £1045
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    Warmflow Boilerhouse B90HE 26kW Regular Oil Boiler 26kw 90.7% 7 years £1780
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    Warmflow Boilerhouse B120HE 33kW Regular Oil Boiler 33kw 90.8% 7 years £1225
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    Warmflow Kabin-Pak K70HE 21kW Regular Oil Boiler 21kw 90.7% 7 years £1310
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    Warmflow Kabin-Pak K90HE 26kW Regular Oil Boiler 26kw 90.8% 7 years £1345
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    Warmflow Kabin-Pak K120HE 33kW Regular Oil Boiler 33kw 90.7% 7 years £1635
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    Warmflow Kabin-Pak K150HE 44kW Regular Oil Boiler 44kw 90.3% 7 years £1915
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    Warmflow Utility HE U70HE 21kW Regular Oil Boiler 21kw 90.7% 7 years £1250
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    Warmflow Utility HE U90HE 26kW Regular Oil Boiler 26kw 90.8% 7 years £1990
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    Warmflow Utility HE U120HE 33kW Regular Oil Boiler 33kw 90.7% 7 years £1300
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    Warmflow Utility HE U150HE 44kW Regular Oil Boiler 44kw 90.3% 7 years £1600
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    Warmflow Boiler Warranty

    Every boiler manufacturer offers a standard warranty with their boilers which last between 1-10 years. The warranty is your insurance policy and means if a fault develops the manufacturer will resolve it within a specified time frame. Some warranties include both parts and labour while others may only cover parts. The most important thing to remember is to get your boiler serviced by a qualified engineer every year as failing to do so is likely to invalidate your warranty. For more detail about this brand’s warranty (including the small print) take a look at Warmflow Boiler Warranty.

    Warmflow Boiler Repairs

    Even the highest quality boiler can develop faults and problems as they age. Some are minor issues you may be able to handle yourself but most will need an OFTEC registered engineer to diagnose and repair the problem. To find out if there are any common problems associated with this manufacturer you can read our guide to Warmflow Boiler Repairs & Common Warmflow Boiler Problems.

    Warmflow Error Codes

    Error codes may appear on your boiler’s display; it’s your boiler’s way of telling you that something is wrong. Each manufacturer uses a different coding system to help an engineer to diagnose a fault. In some cases it may be a simple issue such as low pressure which you can adjust yourself but more technical faults will certainly need a professional. We’ve put together a list of error codes for all Warmflow Boilers to help you understand what’s wrong before you contact an engineer.

    Warmflow in the Forum & Articles Section


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