The HDG Compact 30-149 combines state-of-the-art technology with excellent design and maximum fuel flexibility.
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Compact 30(E) |
Compact 40(E) |
Compact 50(E) |
Compact 65(E) |
Compact 80(E) |
Compact 95(E) |
|
| Nominal thermal power (kW) | 30 | 40 | 50 | 65 | 80 | 95 |
| Minimum thermal power (kW) | 9 | 12 | 15 | 19,5 | 24 | 28,5 |
| Boiler efficiency at nominal thermal power** | 94,5 | 94,0 | 93,4 | 93,3 | 93,1 | 93,0 |
| Flue gas temperature at nominal thermal power (°C) | 140 | 150 | 160 | 180 | 160 | 180 |
| Flue gas mass flow at nominal thermal power* (kg/s) | 0,018 | 0,024 | 0,030 | 0,038 | 0,046 | 0,053 |
| Water capacity (l) | 167 | 167 | 167 | 167 | 230 | 230 |
| Operating pressure (bar) | 3 | 3 | 3 | 3 | 3 | 3 |
| Flue draught requirement (Pa)*** | 5 | 5 | 5 | 5 | 7 | 7 |
| Maximum operating temperature (°C) | 89 | 89 | 89 | 89 | 89 | 89 |
| Flue gas pipe connection (mm) | 150 | 150 | 180 | 180 | 180 | 180 |
Compact 30(E) |
Compact 40(E) |
Compact 50(E) |
Compact 65(E) |
Compact 80(E) |
Compact 95(E) |
|
| Height without attachments (mm) |
1660 | 1660 | 1660 | 1660 | 1660 | 1660 |
| Width with VBZ120 and filter (mm) |
2060 | 2060 | 2060 | 2060 | 2385 | 2670 |
| Depth with container (mm) |
1300 | 1300 | 1300 | 1300 | 1320 | 1360 |
| Weight (kg) | 920 | 920 | 920 | 920 | 1200 | 1200 |
Compact 30(E) |
Compact 40(E) |
Compact 50(E) |
Compact 65(E) |
Compact 80(E) |
Compact 95(E) |
|
| Boiler energy efficiency class | A+ | A+ | A+ | A+ | k.A. | k.A. |
| Boiler + controller energy efficiency class (class VI) |
A+ | A+ | A++ | A++ | k.A. | k.A. |
** Values according to type testing according to DIN EN 303-5 by TÜV-Süd
*** In conjunction with flue gas blower and negative pressure control
Compact 120(E) |
Compact 130(E) |
Compact 140(E) |
Compact 149(E) |
|
| Nominal thermal power (kW) | 120 | 130 | 140 | 150 |
| Minimum thermal power (kW) | 36,4 | 39,7 | 42 | 45 |
| Boiler efficiency at nominal thermal power** | 95 | 94,4 | 94,4 | 94,2 |
| Flue gas temperature at nominal thermal power (°C) | 140 | 145 | 160 | 175 |
| Flue gas mass flow at nominal thermal power* (kg/s) | 0,074 | 0,083 | 0,088 | 0,093 |
| Water capacity (l) | 357 | 357 | 357 | 357 |
| Operating pressure (bar) | 3 | 3 | 3 | 3 |
| Flue draught requirement (Pa)*** | 5 | 5 | 5 | 5 |
| Maximum operating temperature (°C) | 95 | 95 | 95 | 95 |
| Flue gas pipe connection (mm) | 200 | 200 | 200 | 200 |
Compact 120(E) |
Compact 130(E) |
Compact 140(E) |
Compact 149(E) |
|
| Height without attachments (mm) | 1863 | 1863 | 1863 | 1863 |
| Width with VBZ120 and filter (mm) | 2706 | 2706 | 2706 | 2706 |
| Depth with container (mm) | 987 | 987 | 987 | 987 |
| Weight (kg) | 1760 | 1760 | 1760 | 1760 |
** Values according to type testing according to DIN EN 303-5 by TÜV-Süd
*** In conjunction with flue gas blower and negative pressure control

The new version of the HDG Compact 30-149(E) wood chip boiler combines proven technology with a range of technical enhancements. The improved PLUS cleaning system, ash removal included as standard, as well as faster installation due to complete pre-assembly and a reduced number of connections, are among the key features of the latest generation. With the integrated fine dust separator, the system can also be operated with coarser and ash-rich fuels, subject to the applicable fuel specifications.
In short: From fuel feed to ash removal, the HDG Compact 30-149(E) offers a range of practical solutions throughout the system design.

With its high combustion temperatures, the high-temperature combustion chamber supports low emissions during operation. The overfill protection with integrated safety shutdown via a heat-resistant stainless steel push-button tube contributes to safe operation during the combustion process.

For ash removal, the tilting grate made of solid cast iron is tilted by more than 90 degrees. This helps remove combustion residues from the grate. Thanks to the residual glow zone, reignition after closing the tilting grate may often not be required. This can help reduce energy consumption during operation.

The combustion chamber temperature sensor supports stable operation within the intended power range, even with varying fuel quality, and helps protect components by limiting the combustion chamber temperature. Together with the lambda sensor, it also supports low emissions during operation.

The new movable turbulators clean the heat exchanger surfaces thoroughly and help maintain efficient heat transfer. Thanks to the new drive mechanism located in the cooler lower section of the boiler, accessibility has also been improved and the service life of components can be supported.

Ash removal augers convey combustion residues from the combustion chamber, fly ash chamber and filter system automatically into the ash containers. There, the ash is compacted in large-volume ash containers, helping to reduce the frequency of emptying.
Practical ash container with Euro interface
The HDG ash container with Euro interface can be handled using standard tractors equipped with a compatible interface. The mechanical discharge system can simplify ash handling, while the large filling volume of 230 litres can help reduce emptying frequency.

The HDG ash box with Euro receptacle can be transported using standard tractors equipped with a compatible Euro interface. The mechanical emptying system can simplify ash handling, while the large filling volume of 230 litres can help reduce the frequency of emptying.
Find out how easy it is to heat with the HDG and experience our flexible wood chip boilers as used by our customers.
Until now, the use of wood chips from branches, treetops and thinning wood could be challenging. With HDG, the Vario feed system and the integrated fine dust separator enable the use of coarser and ash-rich fuels, subject to the applicable fuel specifications.
Integrated fine dust separator
The integrated fine dust separator is designed to support the use of ash-rich fuels. As it is integrated into the boiler, only limited additional installation space is required. Fine dust collected by the separator is removed automatically and conveyed to the central ash container together with other combustion residues.
Advantages: