ATAG Heating Technology is the premium heating equipment provider

ATAG Heating Technology is the premium heating equipment provider you can trust. We only sell through selected gas-safe registered installers, giving you peace of mind and keeping you and your family safe. With the lowest carbon emissions on the market, we also help the environment too.
ATAG will help you to protect and grow your business. Our direct-sales model and unrivalled customer service, including next day delivery and a dedicated 24/7 support line, allows you to focus on what matters — delivering your customers confidence and reliability.
Learn more about our 14-year warranty program

Products ATAG Heating

Combination boilers
Economiser combination boilers
System boilers
Regular boilers
Controls and thermostats
Cylinders
Chemicals and filters

Combination boilers

i24C, i28C, i36C, i40C.
Every ATAG boiler carries a 10 years warranty as standard with options up to 14 years and they’re professionally installed by our ATAG Selected Partners.
Our combi boilers come in a range of sizes designed to suit all needs, from a small flat to a large family dwelling, and are celebrated for
their efficiency.
In fact, thanks to our engineering excellence, an ATAG iC combination boiler can help to save up to £320 a year on your gas bills (Energy Savings Trust, 2017).
Compact and quiet, an iC combination boiler will fit neatly into the heart of your home. This makes it a perfect choice if you have limited space, or if you want to free up space currently allocated to a hot water cylinder.
Why not pair the ATAG iC combination boiler with the ATAG ONEZone or Tado V3+ smart controller to achieve a maximum A+.
A 275 mm (deep) model is available to fit inside kitchen cupboards
10 years warranty as standard with options up to 14 years
Control the system via smartphone using the ATAG ONE or Tado V3+ smart controller
ATAG iCon stainless steel heat exchanger – with its unique lifetime replacement guarantee
Detailed fault codes on LCD display for quicker, more accurate boiler diagnostics
Built-in weather compensator gives impressive efficiency benefits and increased comfort
Boiler Plus compliant
Built in frost protection device
Quiet in operation due to bottom up modulation

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Economiser combination boilers

Economiser Combination Boiler, iC Economiser Plus Combination Boilers.
iC27+, iC35+, iC39+.
Every ATAG boiler carries a 10 years warranty as standard with options up to 14 years and they’re professionally installed by our ATAG Selected Partners.
The ultimate in domestic efficiency.
Our revolutionary iC Economiser Plus boiler has been described as the combi of the future because it contains an industry-leading innovation, our patented Economiser Plus.
Some years ago, ATAG’s design engineers realised there was untapped residual heat left in the waste flue gases when the boiler was being used for hot water. So they set upon harnessing the wasted energy and the ATAG Economiser was born.
It works by capturing waste energy from the flue gases and uses it to pre-heat the mains water to improve hot water production efficiency, saving both heat and money in the process.
Why not pair the ATAG iC Economiser Plus combination boiler with the ATAG ONEZone smart controller or Tado V3+ to achieve a maximum A+Energy Related Products rating.
A 275 mm (deep) model is available to fit inside kitchen cupboards
10 years warranty as standard with options up to 14 years
Control the system via smartphone using the ATAG ONE or Tado V3+ smart controller
ATAG iCon stainless steel heat exchanger – with its unique lifetime replacement guarantee
Detailed fault codes on LCD display for quicker, more accurate boiler diagnostics
Built-in weather compensator gives impressive efficiency benefits and increased comfort
Boiler Plus compliant
Built in frost protection device
Quiet in operation due to bottom up modulation
A standard boiler casing houses a Built-in Passive Flue Gas Heat Recovery Device

Combination Boiler. iC Combination

i24C, i28C, i36C, i40C
Every ATAG boiler carries a 10 years warranty as standard with options up to 14 years and they’re professionally installed by our ATAG Selected Partners.
Our combi boilers come in a range of sizes designed to suit all needs, from a small flat to a large family dwelling, and are celebrated for
their efficiency.
In fact, thanks to our engineering excellence, an ATAG iC combination boiler can help to save up to £320 a year on your gas bills (Energy Savings Trust, 2017).
Compact and quiet, an iC combination boiler will fit neatly into the heart of your home. This makes it a perfect choice if you have limited space, or if you want to free up space currently allocated to a hot water cylinder.
Why not pair the ATAG iC combination boiler with the ATAG ONEZone or Tado V3+ smart controller to achieve a maximum A+.
A 275 mm (deep) model is available to fit inside kitchen cupboards
10 years warranty as standard with options up to 14 years
Control the system via smartphone using the ATAG ONE or Tado V3+ smart controller
ATAG iCon stainless steel heat exchanger – with its unique lifetime replacement guarantee
Detailed fault codes on LCD display for quicker, more accurate boiler diagnostics
Built-in weather compensator gives impressive efficiency benefits and increased comfort
Boiler Plus compliant
Built in frost protection device
Quiet in operation due to bottom up modulation

System Boiler, iS Boiler System

i15S, i18S, i24S, i32S, i40S
Every ATAG boiler carries a 10 years warranty as standard with options up to 14 years and they’re professionally installed by our ATAG Selected Partners.
With an ATAG iS system boiler you’ll be choosing one of the most energy efficient boilers in Europe and you’ll love its easy to operate simplicity too.
What makes our system boilers different, though, is the in-built ErP pump. This controls the heat given out by the boiler, ensuring your boiler is as energy efficient as possible, saving you money year-on-year.
System boilers are traditionally fitted with an unvented hot cylinder which provides an increased capacity of hot water. The fact that the pump and controls are contained within the boiler casing counts towards a simple and space saving solution.
A 275 mm (deep) model is available to fit inside kitchen cupboards
10 years warranty as standard with options up to 14 years
Control the system via smartphone using the ATAG ONE Zone or Tado V3+ smart controller
ATAG iCon stainless steel heat exchanger – with its unique lifetime replacement guarantee
Detailed fault codes on LCD display for quicker, more accurate boiler diagnostics
Fully compatible with ATAG iSteel cylinder range & the 3 port valve kit
Built-in anti-cycling function for improved efficiency
Combined condensate and pressure relief valve outlet pipe means less pipework
Fully compatible with solar thermal hot water systems and ATAG iSteel twin coil cylinder range
Supplied with fixing jig as standard, for rear piping up behind the boiler
Factory fitted ErP-ready pump for low electrical consumption and improved efficiency

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Regular Boiler, iR Regular Boiler

i15R, i18R, i24R, i32R, i40R
Every ATAG boiler carries a 10 years warranty as standard with options up to 14 years and they’re professionally installed by our ATAG Selected Partners.
Also known as conventional boilers that are fitted in many UK homes. Regular boilers offer a simple and straightforward boiler replacement solution that traditionally requires a loft space to house the feed and expansion tank.
Extremely energy efficient with simple to use controls. Extensive flue solutions mean you can site the boiler almost anywhere in your home.
Homeowners seeking even more efficiency can combine an iR Regular boiler with one of our iSteel hot water cylinders.
A 275 mm (deep) model is available to fit inside kitchen cupboards
10 years warranty as standard with options up to 14 years
Control the system via smartphone using the ATAG ONE or Tado V3+ smart controller
ATAG iCon stainless steel heat exchanger – with its unique lifetime replacement guarantee
Detailed fault codes on LCD display for quicker, more accurate boiler diagnostics
Fully compatible with ATAG iSteel cylinder range & the 3 port valve kit
Built-in anti-cycling function for improved efficiency
Combined condensate and pressure relief valve outlet pipe means less pipework
Fully compatible with solar thermal hot water systems and ATAG iSteel twin coil cylinder range
Supplied with fixing jig as standard, for rear piping up behind the boiler

ATAG iR Regular Boiler, Our high-efficiency regular boiler.

ATAG iR boilers are available in various outputs from 15kW to 40kW and are suitable for most homes, regardless of the hot water demand. An ATAG iR regular boiler can also be installed with our iSteel range of hot water cylinders for increased efficiency levels.
iR regular boilers are specifically designed for open vented systems, presenting considerable options for larger homes with higher volume hot water needs.

Controllers

ATAG’s controllers are specially designed to offer you simple heating controls.

OneZone Controller

Control your heating remotely with the controller that does good and looks good.

tado V3+

The smart way to control your heating and hot water. tado is your climate assistant that ensures a comfortable & healthy climate, and could considerably reduce energy consumption.

ATAG Cube

A simplistic, easy to use controller with a large LCD display.

Installers that you can depend on

From design through to installation and after-care service, our ATAG selected gas-safe installers are on hand to offer you excellent advice and the best solution possible that suits your needs.

ATAG Cylinders

Cylinders,View our range of cylinders below.

ATAG iSteel Twin Coil Cylinders

The iSteel twin coil cylinders range from 150 to 300 litres. They work with the ATAG iS system and iR regular boilers.

ATAG iSteel Unvented Cylinders

The iSteel unvented cylinders range from 90 to 300 litres. They work with ATAG iS system and iR regular boilers.

ATAG iSteel Vented Cylinders

The iSteel vented cylinders range from 85 to 260 litres. They work with ATAG iS system and iR regular boilers.

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ATAG Heating Technology UK Ltd.

ATAG Heating in United Kingdom