| Model | Type | Fuel | Efficiency |
|---|---|---|---|
|
|
|||
| Unical Alkon 28 SC HE | Condensing | Gas | 88.5% |
| Unical Alkon 28 SR HE | Condensing | Gas | 88.6% |
| Unical Alkon 35 SC HE | Condensing | Gas | 88.5% |
| Unical Alkon 35 SR HE | Condensing | Gas | 88.6% |
| Unical Alkon C 18 HE | Condensing | Gas | 88.3% |
| Unical Alkon C 24 HE | Condensing | Gas | 88.4% |
| Unical Alkon C 28 HE | Condensing | Gas | 89.3% |
| Unical Alkon C 35 HE | Condensing | Gas | 89.4% |
| Unical Alkon R 18 HE | Condensing | Gas | 88.4% |
| Unical Alkon R 24 HE | Condensing | Gas | 88.5% |
| Unical Alkon R 28 HE | Condensing | Gas | 89.4% |
| Unical Alkon R 35 HE | Condensing | Gas | 89.5% |
| Unical Alkon Slim 28 HE | Condensing | Gas | 88.8% |
| Unical Alkon Slim 35 HE | Condensing | Gas | 88.7% |
| Unical KON C 28 HE | Condensing | Gas | 89.1% |
| Unical KON C HE Combi Boiler | Condensing | Gas | 89.0% |
| Unical KON R 28 HE | Condensing | Gas | 89.2% |
| Unical KON R HE | Condensing | Gas | 89.1% |
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