ATAG iSteel Vented Cylinders
ATAG iSteel Vented Cylinders
Traditional copper cylinder layouts PLUS the latest technical advancements. This replacement domestic stainless steel hot water storage cylinder is available in direct or indirect cylinders with 85-260 litre capacity.


Key features and benefits
- Robust and reliable
- Built-in secondary return for maximum hot water deliver
- Efficient Erp ‘C’ banding
- Easy to install
- Part L compliant
- 10 year guarantee
Specification
The table represents the technical information for the cylinder part number.
Cylinder type | Actual size of vessel | Capacity | ERP Energy efficiency class | Part number |
ISTEEL VENTED INDIRECT CYLINDER 900 X 375 I | 845 X 445 | 85L | C | CY300085 |
ISTEEL VENTED INDIRECT CYLINDER 900 X 400 I | 816 X 470 | 98L | C | CY300098 |
ISTEEL VENTED INDIRECT CYLINDER 1050 X 400 I | 940 X 470 | 116L | C | CY300116 |
ISTEEL VENTED INDIRECT CYLINDER 900 X 450 I | 812 X 520 | 120L | C | CY300120 |
ISTEEL VENTED INDIRECT CYLINDER 1050 X 450 I | 937 X 520 | 144L | C | CY300144 |
ISTEEL VENTED INDIRECT CYLINDER 1200 X 375 I | 1149 X 445 | 116L | C | CY400116 |
ISTEEL VENTED INDIRECT CYLINDER 1200 X 450 I | 1060 X 520 | 166L | C | CY300166 |
ISTEEL VENTED INDIRECT CYLINDER 1500 X 450 I | 1360 X 520 | 210L | C | CY300210 |
ISTEEL VENTED INDIRECT CYLINDER 1800 X 450 I | 1614 X 520 | 260L | C | CY300260 |
ISTEEL VENTED DIRECT CYLINDER 900 X 375 D | 845 X 445 | 85L | C | CY100085 |
ISTEEL VENTED DIRECT CYLINDER 900 X 400 D | 816 X 470 | 98L | C | CY100098 |
ISTEEL VENTED DIRECT CYLINDER 1050 X 400 D | 940 X 470 | 116L | C | CY100116 |
ISTEEL VENTED DIRECT CYLINDER 900 X 450 D | 812 X 520 | 120L | C | CY100120 |
ISTEEL VENTED DIRECT CYLINDER 1050 X 450 D | 937 X 520 | 144L | C | CY100144 |
ISTEEL VENTED DIRECT CYLINDER 1200 X 375 D | 1149 X 445 | 116L | C | CY200116 |
ISTEEL VENTED DIRECT CYLINDER 1200 X 450 D | 1060 X 520 | 166L | C | CY100166 |
ISTEEL VENTED DIRECT CYLINDER 1500 X 450 D | 1360 X 520 | 210L | C | CY100210 |
ISTEEL VENTED DIRECT CYLINDER 1800 X 450 D | 1614 X 520 | 260L | C | CY100260 |

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