Ostra Keel spec sheet
Figures are for the standard 40 kWh unit at 20 °C ambient. The values in the table are the ones we warrant. Select a numbered part to jump to its row.
Parts
- 1 Store core
Salt hydrate medium sealed in stainless modules.
- 2 Charge coil
Heats the medium from the three-phase supply.
- 3 Output exchanger
Plate exchanger keeps building water separate from the store.
- 4 Controls board
Schedules charge and speaks Modbus or BACnet.
Specification
| Item | Value |
|---|---|
| Usable store | 40 kWh |
| Charge input | Up to 22 kW, three-phase 400 V |
| Output temperature | 45 to 90 °C |
| Continuous output | 12 kW at 60 °C |
| Hold time | Up to 48 hours, loss under 3% a day |
| Footprint | 1.2 × 0.8 × 1.9 m |
| Weight, full | 610 kg |
| Noise | 38 dB(A) at 1 m |
| Controls | Modbus TCP and BACnet/IP |
| Warranty | 10 years on the store core, 2 years on controls |
| Certification | Testing under way. Results are published here when issued. |
What the Keel is not
It does not store electricity. It is not a battery for vehicles or homes.
It does not replace a boiler for steam above 100 °C. Ask us before you size a plant that needs it.