Summary
The Mistral S2 70/90 has a SAP seasonal efficiency rating of 85.6%.
The S2 70/90 is a Non-Condensing Conventional boiler with a maximum power output of 26.4kw that uses Oil as its fuel source.
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Specification
| Manufacturer | Mistral |
| Model | S2 70/90 |
| Fuel Type | Oil |
| Type | Conventional |
| Method | Non-Condensing |
| Flue Type | Open or Room-Sealed |
| Fan | Fan Assisted |
| Output (KW) | 20.5 - 26.4 |
| Boiler ID | |
| Manufactured From/To | 2006 - current |
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