Resources for installers
Optimino keys and external heat source compatibility resources
Optimino helps Thermino work with different energy sources, including heat pumps and solar PV. You choose the Optimino key that matches the heat source you have today, and if the system changes later, you can switch to the relevant key without replacing the heat battery.
Learn more about Optimino technology here.

Optimino key part numbers
| Compatible heat pump brands | Optimino key part number |
|---|---|
| Daikin Altherma 3HHT R32 series | DN01 |
Relevant wiring instructions for all listed external heat resources in here.
Due to restrictions in refrigerant regulations in North America, we are only compatible with the above listed heat sources. We expect new heat pumps to be added to the list in the near future.
| Heat source | Optimino key part number |
|---|---|
| Boiler | VF01 |