Thermia Calibra RXT 12 DUO, 400V

The Calibra RXT is a ground source heat pump using the natural refrigerant R290 (propane), combining high performance with a low environmental impact. Thanks to R290’s very low GWP value, the CO₂ equivalent of the refrigerant charge is also particularly low.

With a supply temperature of up to 70°C, the Calibra RXT is suitable for both low- and high-temperature heating systems, making it ideal for new builds and renovation projects. The heat pumps can also be installed in cascade for applications with higher heating demands.

The combination of a high supply temperature, TWS technology and variable hot water charging enables the efficient production of large quantities of domestic hot water.

The Calibra RXT features an integrated safety solution for R290, without requiring additional technical space. The intuitive touchscreen control and Thermia Online make it easy to operate and monitor the system remotely. Smart Price can also be used to take dynamic energy prices into account.

Modulating Ground Source Heat Pump with integrated hot water cylinder:
- Capacity 3.1–12,6 kW (5/35°C) / SCOP 5.58 (35°C, cold climate)
- Energy efficiency class (product A+++ / system A+++ / hot water A)
- COP 5.4 (5/35°C, 7.0 kWoutput) / COP 4.9 (0/35°C, EN 14511)
- SCOP 5.40 (35°C, av. climate) / SCOP 4.19 (55°C, av. climate)
- Integrated 3-way valve and circulation pumps
- 3x400V+N (25A) / twin rotary compressor / R290 (0.52 kg)
- W x D x H = 598 x 703 x 1450 mm; 132 kg
- Emergency propane extraction duct Ø100 mm; Ø80 mm possible for duct lengths < 8 m
- Heating (cooling optional in combination with PCM) / 2-year warranty
- Outdoor temperature sensor supplied with the heat pump