HDG FK Hybrid
The HDG FK Hybrid combines the advantages of a log wood boiler with the convenience of a pellet boiler.
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Inside view of the boiler
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1 - HDG Control2 - Filling opening3 - Combustion chamber4 - Flue gas damper5 - Fully automatic cleaning system6 - Ash container7 - Pellet storage container8 - Reservoir9 - Automatic ignition10 - Chimney connection -
Technical data
FK 20/15
FK 30/15
FK 30/26
FK 40/26
FK 50/26
Nominal thermal power (kW) 20/15 30/15 30/25,9 40/25,9 50/25,9 Fuel chamber capacity (l) 155 155 155 205 205 Fuel chamber depth (mm) 570 570 570 570 570 Required auxiliary energy (W) 78/33 85/33 85/48 63/48 63/48 Diameter of the flue gas pipe connection (mm) 150 150 150 150 150 Flue draught requirement (Pa) 10/5 10/5 10/5 10/5 10/5 Dimensions and weight
FK 20/15
FK 30/15
FK 30/26
FK 40/26
FK 50/26
Height of the boiler (mm) 1730 1730 1730 1730 1730 Width (mm) 1490 1490 1490 1590 1590 Depth without attachments (mm) 1230 1230 1230 1230 1230 Total weight (kg) 830 830 850 1100 1100 All dimensions for HDG FK Hybrid with pellet suction system. Differs for hand filling.
Energy label
FK 20/15
FK 30/15
FK 30/26
FK 40/26
FK 50/26
Boiler energy efficiency class A+/A+ A+/A+ A+/A+ A+/A+ A+/A+ Boiler + controller energy efficiency class (class VI) A++/A+ A+/A+ A+/A++ A++/A++ A++/A++ -
3D view
The best of two worlds
The log wood-pellet combination HDG FK Hybrid consists of the HDG F gasifying wood boiler and the HDG K pellet unit. Together, these two wood heating systems become a combined boiler with the convenience of an automatic pellet boiler and the advantages of a modern log wood boiler.
And: If you decide on a pure log wood boiler first, you can retrofit the pellet unit at any time later – without having to modify the boiler or the pipework.
Two combustion chambers – two specialists
In contrast to combined combustion chambers, the system with two combustion chambers in the HDG FK Hybrid combines the highest operational safety with the lowest emissions, without compromise. Switching between log wood and pellet operation is fully automatic.
Only one chimney connection necessary
Thanks to the clever flue gas pipe combination, only one chimney connection is required for the HDG FK Hybrid, despite two combustion chambers. This is made possible by alternating operation with either log wood or pellets.
Flexible alternatives
In addition to the HDG FK Hybrid, all other HDG pellet and log wood boilers can also be flexibly combined with each other::
- Perfect utilisation of the available space
- Can even be installed in different rooms
- Overarching and uniform "HDG Control" regulation
- Simple retrofitting possible
Der HDG FK Hybrid im Video
Erfahren Sie, wie einfach das Heizen mit dem HDG ist und erleben Sie unseren flexiblen Scheitholz-Pellet-Kombikessel im Einsatz bei unseren Kunden.
Absolute control
Perfectly regulated with the HDG Control
The new HDG Control is the intelligent control centre for your entire heating system. Whether on the large touchscreen on the boiler or via the app: With HDG Control, you always have absolute control over your heating system.
- Control of combustion and output
- Control of external heat sources
- Integration of solar thermal systems, accumulators, heating circuits, mains pumps
- Domestic hot water preparation, etc.
- Intelligent follow-up management: Refuel the right amount at the right time
- Automatic switching between log wood and pellet operation
- Ignite from anywhere with HDG remote ignition via computer, tablet & smartphone
From the warehouse to the boiler
Flexible storage technology for every area of application
With pellets, heating is convenient – including with regard to the storage of the small pressed wood pellets. Regardless of the structural conditions, a pellet boiler can be set up in almost any building thanks to HDG's flexible discharge technology – not only that, but it can be perfectly tailored to individual needs.
- Pellet mole: Ideal for individually planned fuel storage rooms and particularly quick to install. There is not usually any need for a sloping floor.
- Pellet suction probes: Most common storage system, because individual rooms are fully utilised.
- Pellet fabric silo Prefabricated pellet store, which is quickly installed without much planning effort. Can also be placed directly next to the boiler if no extra fuel storage room is available.