| Subtype | Certificate Holder | Heat Pump Type | Certification Body |
|---|---|---|---|
| ETHER DUO 110 - ETHER 110 | Energy Efficiency Technologies | Outdoor Air/Water | ICIM S.p.A. |
| ETHER DUO 110 T - ETHER 110 T | Energy Efficiency Technologies | Outdoor Air/Water | ICIM S.p.A. |
| ETHER DUO 90 - ETHER 90 | Energy Efficiency Technologies | Outdoor Air/Water | ICIM S.p.A. |
| ETHER DUO 90 T - ETHER 90 T | Energy Efficiency Technologies | Outdoor Air/Water | ICIM S.p.A. |
