HDG K10-33
The HDG K10-33 is characterised by maximum economy in all areas and the particularly small footprint.
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Inside view of the boiler
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1 - Pellet suction system2 - Pellet reservoir3 - Stoker auger4 - Ash container5 - HDG Control6 - Cleaning system7 - Burner pot8 - Ignition9 - Ash removal mechanism -
Technical data
K10
K15
K21
K26
K33
Nominal thermal power (kW) 9,9 15 21 25,9 32,5 Power range (kW) 3,0 - 9,9 4,3 - 15 6,3 - 21 7,6 - 25,9 9,8 - 32,5 Flue gas mass flow (kg/s) 0,0058 0,0085 0,0118 0,0146 0,0180 Water capacity (l) 39 39 47 47 47 Max. permissible operating pressure (bar) 3 3 3 3 3 Flue draught requirement (Pa) 5 5 5 5 5 Permissible flow temperature (°C) 60-75 60-75 60-75 60-75 60-75 Permissible flow temperature for buffer operation (°C) 85 85 85 85 85 Dimensions and weight
K10
K15
K21
K26
K33
Height incl. reservoir with suction system (mm) 1705 1705 1705 1705 1705 Width with suction system (mm) 1075 1075 1075 1075 1075 Depth without flue gas pipe connection with suction system (mm) 710 710 780 780 780 Flue gas pipe diameter (mm) 130 130 130 130 130 Weight (kg) 261 261 283 283 283 Energy label
K10
K15
K21
K26
K33
Boiler energy efficiency class A+ A+ A+ A+ A+ Boiler + controller energy efficiency class (class VI) A+ A+ A++ A++ A++ -
3D view
Say goodbye to your oil heating!
Pellet boilers have become an established heating option in recent years. Compared with oil heating systems, they can offer advantages depending on the building, energy requirements and local conditions.
Depending on the applicable funding programmes and individual eligibility, financial support may be available when replacing an oil heating system with a pellet boiler. The potential benefits of switching should be assessed on a case-by-case basis.
Compact and economical in operation
Fits in a wide range of boiler rooms, offers efficient pellet consumption and, depending on operating conditions and fuel quality, requires ash removal only at relatively long intervals: this is the HDG K10-33 pellet boiler in a nutshell.
The small footprint, flush wall installation on three sides and easy insertion through a standard doorway make the HDG K10-33 particularly suitable for small and compact boiler rooms.
Replacing an existing oil heating system with a pellet boiler can be an option when modernising a heating system. The HDG K10-33 is designed for such renovation projects as well as for new installations.
Fits through (almost) any door
The HDG K10-33 is delivered in separate components and can be brought into the building through a standard doorway. Thanks to its low weight (heaviest component: 170 kg) and compact dimensions, the pellet boiler is also suitable for installation in compact boiler rooms.
Easy installation
The HDG K10-33 is supplied largely pre-assembled. Only a small number of components need to be installed on site, without requiring water-carrying connections.
Highly space-saving
Thanks to its small footprint of only 0.75 square metres and its low height of 1.70 metres, the HDG K10-33 pellet boiler is suitable for installation in a wide range of boiler rooms. The flush wall installation on three sides and the flue gas pipe, which can be oriented upwards or to the rear, also provide a high degree of installation flexibility.
Highest efficiencies
The particularly efficient combustion technology enables low emission levels that comply with applicable legal requirements. The precise air control system with speed-controlled flue gas fan also supports reliable operation in part-load conditions, even without an accumulator.
Clean and convenient
The burner pot and heat exchanger are cleaned automatically, and the combustion residues are compacted in the large-volume ash container. Depending on fuel quality and operating conditions, ash removal is required only at relatively long intervals. In addition to the entry-level version with an internal ash tray, a mobile ash container is also available as an option.
Power-saving and quiet
The HDG K10-33 is designed for low power consumption during operation. For example, the HDG K10 requires only 28 watts during regular operation. Thanks to the low-noise ignition element, the pellet boiler also offers quiet operation.
HDG K10-26 calorific value
Thanks to condensing technology, additional heat can be recovered from the flue gases and used for heating. This allows a higher proportion of the energy contained in the pellets to be utilised.
This can contribute to higher system efficiency.
The flushing function, consisting of two independent circuits, cleans the corrosion-resistant stainless steel heat exchanger and the condensate collector.
The boiler is also characterised by its compact design and can be installed close to the wall on two sides. Delivery in separate components facilitates installation.
The HDG K10-26 condensing boiler is available in four output sizes.
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Technical data
K10 calorific value
K15 calorific value
K21 calorific value
K26 calorific value
Nominal thermal power (kW) 10,5 15,9 22,3 27,5 Power range (kW) 3,2-10,5 4,8-15,9 6,7-22,3 8,2-27,5 Flue gas mass flow (kg/s) 0,0056 0,0079 0,0109 0,0132 Water capacity (l) 53 53 61 61 Max. permissible operating pressure (bar) 3 3 3 3 Flue draught requirement (Pa) -15 (negative pressure) to +5 (positive pressure) -15 (negative pressure) to +5 (positive pressure) -15 (negative pressure) to +5 (positive pressure) -15 (negative pressure) to +5 (positive pressure) Permissible operating temperature (°C) 75 75 75 75 Dimensions and weight
K10 calorific value
K15 calorific value
K21 calorific value
K26 calorific value
Height incl. reservoir with suction system (mm) 1705 1705 1705 1705 Width with suction system (mm) 1075 1075 1075 1075 Depth without flue gas pipe connection with suction system (mm) 1015 1015 1085 1085 Flue gas pipe diameter (mm) 100 100 100 100 Weight (kg) 277 277 298 298 Energy label
K10 calorific value
K15 calorific value
K21 calorific value
K26 calorific value
Boiler energy efficiency class A++ A++ A++ A++ Boiler + controller energy efficiency class (class VI) A++ A++ A++ A++
Video of the HDG K10-33
Find out how easy it is to heat with the HDG and experience our economical pellet boiler as used by our customers.
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.
- Read information and make settings via the easy-to-use touchscreen
- 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.
- On request: Full web access and app for iOS and Android
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. Variants with up to 8 probes are possible.
- 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.