“Our mission is to ensure perfect climate indoors, regardless of the weather outside”

Teknotherm provides a full range of high quality HVAC & Refrigeration systems for the demanding offshore industry. We can supply equipment in explosion proof execution and are familiar with all major classification societies and standards such as DNV/GL, LIoyds, ABS, BV and NORSOK. Offshore wind installation, HVDC platforms, Fixed platforms, semi-submersible rigs, jack-up rigs or FPSOs, we can ensure you the best HVAC and Refrigeration solutions.

Our trained technical staff provides you with design data, documentation, drawings and certificates. Teknotherm designs and builds in-house control systems for our HVAC & Refrigeration Systems.

Teknotherm Marine AS is a Heinen & Hopman group company that provides a full range of high quality standard as well as tailor made HVAC & Refrigeration solutions to demanding offshore application. We design and manufacture equipment for harsh environment and explosion proof (ATEX/EX) installations. Our solutions comply with all major classification societies and standards.

Our HVAC & Refrigeration offer serve any type of fixed and floating offshore installation:

  • HVDC – Offshore High Voltage Direct Current Stations for Offshore Wind projects
  • FPSO – Floating Production Storage & Offloading Vessels
  • Fixed production platforms with Living Quarters
  • Semi-Submersible Drilling Rigs
  • Jack-up rigs for drilling production
  • Life extension projects and front-end engineering support


We offer the following:

  • Air Handling Units, Electric heaters, Heat Exchangers, Axial Fans, Centrifugal Fans and Fan Coil Units
  • Made to order Water Chillers Units, DX Units, Self-Contained AC Units and Complete Provision Room Refrigeration Systems
  • Electrical & Control Systems: Starter Panels, Control Panels
  • Refrigeration Upgrade/Service/Conversion
  • Surveys (HVAC and refrigeration)
  • Air balancing / commissioning / TR testing / Duct cleaning / Fire damper testing

Main features

  • Factory assembled made to order packages including internal piping and electrical cabling
  • Freshwater, Seawater or Air-cooled condensers
  • Teknotherm HMI (Human Machine Interface) in house developed touch-screen control
  • Custom design capabilities that can meet any project requirements
  • Reliable operation with high quality components, materials and surface treatment
  • Optimized size and weight for limited space requirements
  • Easy access for service and maintenance
  • Efficient equipment with high COP (Coefficient of Performance) to reduce power consumption
  • Environmentally friendly refrigerants with Low GWP (Global Warming Potential) including natural refrigerants like CO2

Some project references

Oseberg A – Co2 selfcontained unit for electrical rooms (Aibel/Equinor)
Jotun FPSO Life-extention project – ATEX Propan Chiller (Rosenberg Worley/Vår energi)
Njord B FPSO – Co2 Provision plant and electrical room (Aibel/Equinor)
Kollsnes MEG Expansion – ATEX containerized Chiller package (Woods/Aker Solutions/Equinor)
Dolwin 5  HVDC platform – HVAC and refrigeration equipment (Aibel/Tennet)
Doggerbank A, B & C (HVDC platforms) – HVAC equipment (Aibel/Doggerbank)
Johan Castberg FPSO – Co2 provision plant (Sembcorp/Equinor)
DolWin 6 – HVAC equipment (Dragados/Siemens Tennet)
Martin Linge FSO (Life extension) – KNOT (Knutsen Offshore Tankers)
Bollsta Dolphin – Deepsea Bollsta (Hyundai Heavy Industries/FOE)

Contact us

Kjell Grasbakken

+47 481 29 050 email


Peter Lindholm

+46 727 457 947 email


Sten Rath

+47 482 77 552 email


Mats Udèn

+46 734 456 812 email