The HDG K38-63 also satisfies large heat demands without any problems. This makes it the ideal pellet boiler for larger properties.
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K38 |
K45 |
K50 |
K63 |
|
| Nominal thermal power (kW) | 38 | 45 | 49,9 | 63 |
| Power range (kW) | 10,8-38 | 13,5-45 | 14,9-50 | 18,2-63 |
| Flue gas mass flow (kg/s) | 0,0228 | 0,0261 | 0,0291 | 0,0372 |
| Water capacity (l) | 113 | 113 | 113 | 113 |
| Max. permissible operating pressure (bar) | 3 | 3 | 3 | 3 |
| Flue draught requirement (Pa) | 5 | 5 | 5 | 5 |
| Permissible flow temperature for buffer operation (°C) | 85 | 85 | 85 | 85 |
K38 |
K45 |
K50 |
K63 |
|
| Height incl. reservoir (mm) | 1665 | 1665 | 1665 | 1665 |
| Width (mm) | 1220 | 1220 | 1220 | 1220 |
| Depth excluding flue gas pipe connection (mm) | 998 | 998 | 998 | 998 |
| Flue gas pipe diameter (mm) | 150 | 150 | 150 | 150 |
| Weight (kg) | 647 | 647 | 647 | 647 |
K38 |
K45 |
K50 |
K63 |
|
| Boiler energy efficiency class | A+ | A+ | A+ | A+ |
| Boiler + controller energy efficiency class (class VI) | A+ | A+ | A++ | A++ |
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.

The HDG K38-63 is designed to cover high heating demands and is suitable for larger properties, from apartment buildings to public facilities. At the same time, the HDG K38-63 remains compact and combines a space-saving footprint with straightforward installation.
In addition, it offers many of the features of the smaller HDG K models, including quiet operation, high efficiency and the HDG Control technology.

The HDG K38-63 is delivered in separate components and can be brought into the building through a standard doorway. Thanks to its low weight and compact dimensions, the pellet boiler is also suitable for installation in compact boiler rooms.

The HDG K38-63 is supplied largely pre-assembled. Only a small number of components need to be installed on site, without requiring water-carrying connections.

The efficient combustion technology enables low emission levels and compliance with applicable legal requirements. The precise air control system with a speed-controlled flue gas fan also supports efficient and reliable operation under part-load conditions, even without an accumulator.

Cleaning and maintenance of the HDG K38-63 are particularly convenient thanks to easy access from the front and the large combustion chamber door.

The burner pot and heat exchanger are cleaned automatically, and the combustion residues are compacted in the large-volume, mobile ash container. Depending on fuel quality and operating conditions, the ash container may only need to be emptied 1 to 3 times per year.

The HDG K38-63 is designed for low power consumption during operation. In normal operation, only 103 watts are required. Thanks to its low-noise ignition element, the pellet boiler also offers quiet operation.
Find out how easy it is to heat with the HDG and experience our economical pellet boiler as used by our customers.