The heat pump is suitable for higher building heat loads between 18 and 27 kW. It delivers heat and DHW up to 65°C. It can also be optionally configured for passive cooling. The slimline indoor unit has a footprint of less than half a square metre. The TERRA 27 can be cascaded for higher output demands.

Energy efficient
Climate zone (middle)
Energy efficiency class (D to A+++)
P rated
25 kW
Efficiency ETAs
181,0 %
Useable for
  • Detached and two-family houses
  • Apartment and commercial buildings
  • Underfloor heating
  • Radiators up to 60°C
Max. flow temp. 65°C
OTE controller

Features and options

OTE home climate manager

With its OTE home climate manager, OCHSNER focuses on intelligent, user friendliness for the control of your heat pump system

Also efficient when combined with radiators

As heat pumps in this series achieve flow temperatures of 65°C as standard, they also work in conjunction with radiators

Surface designs

By incorporating natural, warm materials, a technical product can be transformed into a piece of furniture – configuring

OCHSNER ground source heat pumps

OCHSNER ground source heat pumps use the ground as an abundant, free heat store via horizontal collectors or geothermal probes with maximum efficiency.

To overview