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Compare ATAG Boilers Prices & Reviews

ATAG have been designing and manufacturing boilers for nearly 70 years. Led by an ambitious research and development team in the Netherlands, the brand take great pride in the energy efficiency and reliability of their products. ATAG offer a range of Combi, System and Regular boilers as well as hot water cylinders and heating controls.

All ATAG domestic boilers have the highest possible rating for energy efficiency and have been designed to be as compact as possible. ATAG are so confident in the quality of their boilers that they launched their i-Series range of Combi, System and Regular boilers in the UK in 2015 with a lifetime guarantee on their iCon heat exchanger. However, in August 2017, they went a step further and introduced a 10 year warranty on parts and labour across their entire range of boilers. This is unique in the UK and is testament to the confidence they have in their own technology.

In addition to the lifetime guarantee on the heat exchanger and 10 year warranty, ATAG are committed to the safety of your boiler. For this reason they only sell their product via pre-approved, Gas Safe registered engineers which they call their ATAG Selected Partners. These engineers have been specially trained in ATAG product installation, servicing and maintenance. The 10 year warranty is only valid if your boiler is serviced annually by a Gas Safe registered engineer to ensure your ongoing safety and heating efficiency.

ATAG boiler types: CombiRegularSystem

The range of ATAG boilers are available in the following fuel types: Gas


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The ATAG Product Range

ATAG design and manufacture a range of gas boilers including two types of Combi boiler, a System boiler and a Regular boiler, all in a variety of sizes. ATAG also supply a vented and unvented cylinders to be used in conjunction with their system and regular boilers as well as a range of both mechanical and digital controllers.

ATAG Combi Boilers & Prices

Atag IC Economiser 39 Combi Gas BoilerThere are two Combi boilers by ATAG: the iC Combination boiler and the iC Economiser Combination boiler. The iC Combination boiler is a compact and highly energy efficient model which is available in a range of sizes to suit any size of home.

  • 40kW: 16.2 litres flow rate per minute. Suitable for large homes with more than one bathroom.
  • 36kW: 14.9 litres flow rate per minute. Suitable for medium to large homes with more than one bathroom.
  • 28kW: 11.5 litres flow rate per minute. Suitable for small and medium homes with one bathroom.
  • 24kW: 10.1 litres flow rate per minute. Suitable for flats or small homes with one bathroom.

The iC Economiser is ATAG’s most recent design which includes their patented Economiser; this technology recycles residual heat that would otherwise be lost as wasted energy and puts it to use, resulting in their most energy efficient boiler to date.

  • 39kW: 17.0 litres flow rate per minute. Suitable for large homes with more than one bathroom.
  • 35kW: 16.1 litres flow rate per minute. Suitable for medium to large homes with more than one bathroom.
  • 27kW: 12.6 litres flow rate per minute. Suitable for small to medium sized homes.

All ATAG iC combination boilers deliver hot water flow rates in litres per minute @ 35°C rise.

Benefits of an ATAG Combi boiler:

  • Compact size of 70 x 44 x 35.5cm makes ATAG combi boilers perfect for smaller homes
  • No need for a hot water cylinder results in more living space
  • No need for a cold water storage tank which frees up space in the loft
  • 94% ERP Seasonal Space Heating Energy Efficiency (A rated)
  • Less pipework makes installation typically cheaper and a reduced chance of frozen pipework
  • LPG conversion kit available
  • User friendly
  • 10 year warranty included as standard
  • Includes unique iCon heat exchanger with a lifetime replacement guarantee and weather compensator
  • Provides hot water on demand directly from the mains

Compare the Costs of ATAG Combi Boilers

The ATAG Combi boilers have been manufactured to the highest standard using the latest energy efficient technology. They produce boilers for small, medium and large sized homes with a 10 year warranty included as standard.


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Review the complete range of ATAG Gas Combi boiler prices…

ATAG System Boilers & Prices

A system boiler will heat your hot water for both your heating system and to be stored in a hot water storage cylinder for your taps and showers. The inclusion of the storage cylinder means you keep a backup of hot water which is perfect for homes with a high demand or multiple bathrooms. ATAG recommend their iSteel hot water cylinder for maximum energy efficiency.

ATAG iS system boilers are highly energy efficient and available in a range of outputs: 40kW, 32kW, 24kW, 18kW, 15kW. This means small, medium and large homes will find an appropriate model regardless of hot water demand.

ATAG claim that their system boilers have an edge over most competitors because of the in-built ErP pump. This provides more control over the heat produced by your boiler which improves the energy efficiency of the operation.

Benefits of an ATAG System boiler:

  • Compact size for easy installation 70 x 44 x 35.5cm
  • Suitable for homes with multiple bathrooms
  • 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
  • Built-in components makes installation quicker and neater
  • 10 year warranty included as standard
  • LPG convertible
  • Solar compatible
  • A rated energy efficiency 94%
  • Includes unique iCon heat exchanger with a lifetime replacement guarantee
  • Compatible with the ATAG ONE controller and 3 port valve kit
  • User friendly controls

Compare the complete range of ATAG Gas System boiler prices…

Review the complete range of ATAG Gas System boiler prices…


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ATAG Regular Boilers & Prices

Rather than replacing an entire heating system you may choose to simply update your Regular boiler with a condensing and highly energy efficient model. This means you will keep the cold water tank in your loft and hot water storage cylinder. iR Regular boilers can be combined with ATAG’s iSteel hot water cylinders for maximum energy efficiency.

ATAG produce the iR Regular boiler in a range of sizes to suit homes of every size and hot water demand: 40kW, 32kW, 24kW, 18kW, 15kW. They offer a wide range of flue options which means you can be flexible about where the boiler is sited.

Benefits of an ATAG Regular Boiler:

  • Easily meets a high hot water demand
  • Ideal for homes with two or more bathrooms
  • Ideal for installation in areas where mains water pressure is low
  • Compact size and multiple flue options for flexible installation
  • Straightforward replacement for existing regular systems
  • 10 year warranty included as standard
  • Includes the unique iCon heat exchanger with a lifetime replacement guarantee
  • Completely user friendly
  • 94% A rated energy efficiency
  • Solar compatible
  • LPG convertible

Compare the Costs of ATAG Regular Boilers

Review the complete range of ATAG Gas Regular boiler prices…


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ATAG 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 Gas Safe registered 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 ATAG Boiler Warranty.

ATAG Boiler Repair Advice

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 a Gas Safe 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 ATAG Boiler Repairs & Common ATAG Boiler Problems.


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ATAG 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 ATAG Boilers to help you understand what’s wrong before you contact an engineer.

ATAG Boiler Controls

ATAG One controller

This thermostat enables you to control the temperature in your home remotely using the ATAG One App on a smart device.

7 day single channel digital wireless programmer and room thermostat

This control comes with a receiver to fit in the front fascia panel and provides on/off time setting periods throughout the day with full temperature control. It is compatible with the iC Economiser Plus combi and iC combination boiler ranges.

24 hour single channel mechanical wireless programmer and room thermostat

This control enables the customer to select their perfect room temperature with multiple on/off settings across a 24-hour period. It is compatible with the iC Economiser Plus combi and iC combination boiler ranges.

24 hour single channel plug-in mechanical programmer

This manual control is compatible with the iC Economiser Plus combi and iC combination boiler ranges and enables multiple on/ off settings across a 24-hour period.

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