External heat pump heating system
Serial renovation: retrofitting heat pumps in apartment buildings
External heating centerThe GEG-compliant external heating center
As part of the implementation of the GEG, large housing stocks will need to be retrofitted in the coming years. One of the challenges here is replacing the natural gas solutions that have been common up to now, which are no longer permitted under the new legislation. The switch to renewable energies goes hand in hand with a change in space requirements: especially when switching from individual solutions such as classic gas floor heating to a centralized system, there is often a lack of space in the building. In addition, most of the modernization work must be carried out while the buildings are rented or occupied. Solutions are also needed that can supply hot water for drinking in addition to heating.
Highly efficient Ecodan cascade systems: for reliable heat supply with higher performance requirements
As a market leader in inverter technology, Mitsubishi Electric develops systems that perfectly combine maximum efficiency and pioneering living comfort. For GEG-compliant heat supply in buildings with high power requirements, Mitsubishi Electric offers air-to-water heat pump cascades with different compressor technologies, among other things. This means that the right system can always be selected for the requirements of the project in question. Up to six heat pump systems can be combined in a cascade as standard.
The solution: smart renovation with an external heat pump heating system
The solutionCustomized prefabrication: PreFab TGA Systembau is a leading provider of prefabricated technical building equipment with a focus on HVAC technology. The company has extensive TGA planning expertise and operates its own production facility for container modules. With a range of services extending from planning and development to assembly and delivery, PreFab is the ideal partner for modular heating solutions from a single source. In cooperation with Mitsubishi Electric, the company now offers an external heat pump heating center as a ready-to-connect container module. For well-thought-out, practical flexibility and uncompromising efficiency in the energy transition.

Now is the perfect time to position yourself perfectly - with an innovative product that has its finger on the pulse.
The advantages at a glance: The heat pump solution for the housing industry
Your advantages- 100% GEG-compliant heat pump solution
- Fast changeover times thanks to turnkey delivery
- Discreet placement near the building
- Disruption to residents caused by on-site work can be kept to a minimum.
- Heating system renovation "during operation"
- Hardly any additional space required in the building
- Integrated hot water preparation on request
- Additional equipment options such as pressure maintenance and reheating device, energy management, and heat separator available on request
- Long-term robust, secure protection of heating technology against weather influences and vandalism
Brochure available for download
brochure- GEG-compliant heating in commercial buildings
- Advantages of Ecodan heat pump cascade
- External heating system at a glance
- Heat pump expertise from Mitsubishi Electric
- PreFab as your partner for modular construction and sales
Brochure: Heat supply for apartment buildings and residential complexes
New market, new opportunities: Start the future with an external heating plant.
New market, new opportunities:Interested? Would you like to find out more?
ContactThe external heating control unit is supplied exclusively by PreFab TGA Systembau GmbH.
Our partner PreFab TGA Systembau is a leading provider of prefabricated technical building equipment with a focus on HVAC technology. In cooperation with Mitsubishi Electric, the company now offers an external heat pump heating center as a ready-to-connect container module. For well-designed, practical flexibility and uncompromising efficiency in the energy transition.
Click here to contact your PreFab contact