Regular Boiler
iR Regular
i15R i18R i24R i32R i40REvery ATAG boiler carries a 12-year warranty as standard, with an option of 18 years!
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.
An ATAG iR regular boiler can also be installed with our iSteel range of hot water cylinders for increased efficiency levels.






Key features and benefits

Compact dimensions
h700 x w440 x d366 (mm)

Five models available
15kW, 18kW, 24kW, 32kW, 40kW

Up to 18 years warranty
Including all parts and labour

Completely user friendly
with intuitive controls

Quiet in operation
Due to bottom-up modulation

Frost protection
With built-in frost protection

ErP "A" rated
Achieves ErP ‘A’ rating for heating and hot water

Loved by customers
ATAG is the UK’s highest rated boiler brand on Trustpilot
- A 275 mm (deep) model is available to fit inside kitchen cupboards
- 12 years warranty as standard with the option of 18 years
- ATAG iCon stainless steel heat exchanger – with its unique lifetime replacement guarantee
- Supplied with fixing jig as standard, for rear piping up behind the boiler
- Factory pre-set for speedier commissioning
- Detailed fault codes on LCD display for quicker, more accurate boiler diagnostics
- Compatible with underfloor systems with easy change of parameter settings
- Fully compatible with solar thermal hot water systems and ATAG iSteel twin coil cylinder range
- Fully compatible with ATAG iSteel cylinder range
- Wide modulation range delivers significant fuel savings
- Control the system via smartphone using the ATAG ONE or Tado V3+ smart controller
Specifications
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Part Number
BR400315
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY CLASS
A
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY (%)
94
CH OUTPUT KW (50/30°C)
14.7
SEDBUK 2009 (%)
89.8
DIMENSIONS (H X W X D) MM
700X440X355
BOILER LIFT WEIGHT WITH JIG KG
32
STANDARD WARRANTY (YEARS)
10
LPG AVAILABLE
YES
NOX CLASS
6
INGRESS PROTECTION (IP)
IPX4D
MAXIMUM EQUIVALENT HORIZONTAL/VERTICAL FLUE LENGTH (M) 60/100MM
18
MAXIMUM EQUIVALENT HORIZONTAL/VERTICAL FLUE LENGTH (M) 80/125MM
50
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Part Number
BR400318
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY CLASS
A
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY (%)
94
CH OUTPUT KW (50/30°C)
17.5
SEDBUK 2009 (%)
89.8
DIMENSIONS (H X W X D) MM
700X440X355
BOILER LIFT WEIGHT WITH JIG KG
32
STANDARD WARRANTY (YEARS)
10
LPG AVAILABLE
YES
NOX CLASS
6
INGRESS PROTECTION (IP)
IPX4D
MAXIMUM EQUIVALENT HORIZONTAL/VERTICAL FLUE LENGTH (M) 60/100MM
18
MAXIMUM EQUIVALENT HORIZONTAL/VERTICAL FLUE LENGTH (M) 80/125MM
50
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Part Number
BR400324
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY CLASS
A
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY (%)
94
CH OUTPUT KW (50/30°C)
23.2
SEDBUK 2009 (%)
89.8
DIMENSIONS (H X W X D) MM
700X440X355
BOILER LIFT WEIGHT WITH JIG KG
32
STANDARD WARRANTY (YEARS)
10
LPG AVAILABLE
YES
NOX CLASS
6
INGRESS PROTECTION (IP)
IPX4D
MAXIMUM EQUIVALENT HORIZONTAL/VERTICAL FLUE LENGTH (M) 60/100MM
18
MAXIMUM EQUIVALENT HORIZONTAL/VERTICAL FLUE LENGTH (M) 80/125MM
50
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Part Number
BR400332
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY CLASS
A
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY (%)
94
CH OUTPUT KW (50/30°C)
31.2
SEDBUK 2009 (%)
89.8
DIMENSIONS (H X W X D) MM
700X440X355
BOILER LIFT WEIGHT WITH JIG KG
35
STANDARD WARRANTY (YEARS)
10
LPG AVAILABLE
YES
NOX CLASS
6
INGRESS PROTECTION (IP)
IPX4D
MAXIMUM EQUIVALENT HORIZONTAL/VERTICAL FLUE LENGTH (M) 60/100MM
6
MAXIMUM EQUIVALENT HORIZONTAL/VERTICAL FLUE LENGTH (M) 80/125MM
45
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Part Number
BR400340
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY CLASS
A
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY (%)
94
CH OUTPUT KW (50/30°C)
38.8
SEDBUK 2009 (%)
89.8
DIMENSIONS (H X W X D) MM
700X440X355
BOILER LIFT WEIGHT WITH JIG KG
42
STANDARD WARRANTY (YEARS)
10
LPG AVAILABLE
YES
NOX CLASS
6
INGRESS PROTECTION (IP)
IPX4D
MAXIMUM EQUIVALENT HORIZONTAL/VERTICAL FLUE LENGTH (M) 60/100MM
6
MAXIMUM EQUIVALENT HORIZONTAL/VERTICAL FLUE LENGTH (M) 80/125MM
45

OneZone
Control the temperature in your home remotely using the ATAG One Zone App, available for FREE on the App Store or Google Play.
OneZone Smart Controller
Cylinders
Need replacement cylinders? Check out our range to see which one your boiler requires.
View all Cyclinders
Chemicals and filters
We have a range of chemicals and filters that can be used with our boilers.
View all chemicals and filtersInterested in becoming a ATAG Selected Partner?
If you’re interested in becoming a ATAG Selected Partner, simply click on the button below to submit your form. If you’d like more information about our boilers, why not book a demo below?
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