Summary
The Potterton Myson Heating Marathon 70c has a SAP seasonal efficiency rating of 65.0%.
The Marathon 70c is a Non-Condensing Conventional boiler with a maximum power output of 20.5kw that uses Gas as its fuel source.
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Specification
| Manufacturer | Potterton Myson Heating |
| Model | Marathon 70c |
| Fuel Type | Gas |
| Type | Conventional |
| Method | Non-Condensing |
| Flue Type | Open |
| Fan | No Fan |
| Output (KW) | 20.5 - 20.5 |
| Boiler ID | 4178989 |
| Manufactured From/To | - 1988 |
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