Combination Boiler
iC Combination
Every ATAG boiler carries a 12-year warranty as standard, with an option of 18 years!
The compact, high performance, intelligent boiler.
Due to its compact size, an ATAG iC combination boiler will not only look great in your customer’s home but when in operation is among the quietest you can buy. With simple to use controls, including a separate hot water thermostat for added safety, they are extremely user friendly. Also, with extensive flue solutions, you can site the ATAG boiler almost anywhere you like.
The ATAG iC range is fully compatible with the ATAG ONE Zone or Tado V3+ Smart controller.






Key features and benefits
Specifications
Scroll to view more information
Part Number
BC100324
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY CLASS
A
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY (%)
94
ERP WATER HEATING ENERGY EFFICIENCY CLASS
A
ERP WATER HEATING ENERGY EFFICIENCY (%)
81
ERP DECLARED LOAD PROFILE
XL
DHW INPUT KW
26.6
CH OUTPUT KW
23.2
FLOW RATE @ 35°C RISE L/MIN
10.1
SEDBUK 2009 (%)
89.7
DIMENSIONS (H X W X D) MM
700 x 440 x 355
BOILER LIFT WEIGHT WITH JIG KG
41
STANDARD WARRANTY (YEARS)
10
LPG CONVERSION KIT AVAILABLE
Yes
NOX CLASS
6
INGRESS PROTECTION (IP)
IPX4D
MAXIMUM EQUIVALENT HORIZONTAL FLUE LENGTH (M) 60/100MM
15
MAXIMUM EQUIVALENT VERTICAL FLUE LENGTH (M) 60/100MM
15
MAXIMUM EQUIVALENT HORIZONTAL FLUE LENGTH (M) 80/125MM
50
MAXIMUM EQUIVALENT VERTICAL FLUE LENGTH (M) 80/125MM
50
Scroll to view more information
Part Number
BC100328
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY CLASS
A
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY (%)
94
ERP WATER HEATING ENERGY EFFICIENCY CLASS
A
ERP WATER HEATING ENERGY EFFICIENCY (%)
83
ERP DECLARED LOAD PROFILE
XL
DHW INPUT KW
30.3
CH OUTPUT KW
23.2
FLOW RATE @ 35°C RISE L/MIN
11.5
SEDBUK 2009 (%)
89.7
DIMENSIONS (H X W X D) MM
700 x 440 x 355
BOILER LIFT WEIGHT WITH JIG KG
41
STANDARD WARRANTY (YEARS)
10
LPG CONVERSION KIT AVAILABLE
Yes
NOX CLASS
6
INGRESS PROTECTION (IP)
IPX4D
MAXIMUM EQUIVALENT HORIZONTAL FLUE LENGTH (M) 60/100MM
15
MAXIMUM EQUIVALENT VERTICAL FLUE LENGTH (M) 60/100MM
15
MAXIMUM EQUIVALENT HORIZONTAL FLUE LENGTH (M) 80/125MM
50
MAXIMUM EQUIVALENT VERTICAL FLUE LENGTH (M) 80/125MM
50
Scroll to view more information
Part Number
BC100336
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY CLASS
A
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY (%)
94
ERP WATER HEATING ENERGY EFFICIENCY CLASS
A
ERP WATER HEATING ENERGY EFFICIENCY (%)
83
ERP DECLARED LOAD PROFILE
XL
DHW INPUT KW
39.3
CH OUTPUT KW
31.2
FLOW RATE @ 35°C RISE L/MIN
14.9
SEDBUK 2009 (%)
89.7
DIMENSIONS (H X W X D) MM
700 x 440 x 355
BOILER LIFT WEIGHT WITH JIG KG
44
STANDARD WARRANTY (YEARS)
10
LPG CONVERSION KIT AVAILABLE
Yes
NOX CLASS
6
INGRESS PROTECTION (IP)
IPX4D
MAXIMUM EQUIVALENT HORIZONTAL FLUE LENGTH (M) 60/100MM
9
MAXIMUM EQUIVALENT VERTICAL FLUE LENGTH (M) 60/100MM
9
MAXIMUM EQUIVALENT HORIZONTAL FLUE LENGTH (M) 80/125MM
45
MAXIMUM EQUIVALENT VERTICAL FLUE LENGTH (M) 80/125MM
45
Scroll to view more information
Part Number
BC100340
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY CLASS
A
ERP SEASONAL SPACE HEATING ENERGY EFFICIENCY (%)
94
ERP WATER HEATING ENERGY EFFICIENCY CLASS
A
ERP WATER HEATING ENERGY EFFICIENCY (%)
83
ERP DECLARED LOAD PROFILE
XL
DHW INPUT KW
42.0
CH OUTPUT KW
31.2
FLOW RATE @ 35°C RISE L/MIN
16.2
SEDBUK 2009 (%)
89.7
DIMENSIONS (H X W X D) MM
700 x 440 x 355
BOILER LIFT WEIGHT WITH JIG KG
44
STANDARD WARRANTY (YEARS)
10
LPG CONVERSION KIT AVAILABLE
Yes
NOX CLASS
6
INGRESS PROTECTION (IP)
IPX4D
MAXIMUM EQUIVALENT HORIZONTAL FLUE LENGTH (M) 60/100MM
9
MAXIMUM EQUIVALENT VERTICAL FLUE LENGTH (M) 60/100MM
9
MAXIMUM EQUIVALENT HORIZONTAL FLUE LENGTH (M) 80/125MM
45
MAXIMUM EQUIVALENT 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?
Become a registered installer Book a Product Demo