HDG K Cascade 76-126
The HDG K cascade 76-126 offers maximum operational reliability and top convenience in the medium power range.
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Hydraulics and installation
Installation: In multi-boiler systems, the minimum distance between the boilers can be reduced to 120 mm by using the intermediate plate.
Example hydraulics: Both boilers are connected to a central accumulator. By means of HDG accumulator management, the lead boilers change automatically.
Switching from oil heating to a pellet boiler
Pellet boilers are an established heating technology used in a wide range of applications. Depending on the building characteristics, heat demand and local conditions, they may represent an alternative to an existing oil heating system.
Depending on the applicable funding programmes and individual eligibility criteria, financial support may be available for the replacement of an oil heating system. The suitability of a pellet boiler should be assessed based on the specific project requirements.
Powerful, demand-oriented and safe
For higher heat output requirements, HDG heating systems can be combined in a cascade configuration. The advantages of a cascade solution include a wide output range, reliable operation and heat supply tailored to demand, particularly where energy requirements fluctuate. With HDG, a cascade consists of two boilers connected to a common accumulator.
The HDG Compact cascade combines the output range of larger boiler systems with the flexibility of a multi-boiler configuration.
Adapted to heat demand
A cascade system is designed to match heat output to current demand. When heat demand is high, both boilers can operate simultaneously. When demand is lower, the boilers can operate alternately. This alternating operation can reduce operating hours per boiler and lower the thermal load on individual components, which can support their service life.
HDG cascade management
Using the HDG accumulator management system, the installed boilers are alternately assigned the role of lead boiler. As both boilers are designed to operate independently, one boiler can continue operating if the other is unavailable, subject to the system configuration and operating conditions.
Service during operation
Maintenance work can be carried out on one boiler while the second boiler remains in operation, provided system conditions allow this. If one boiler is unavailable, the second boiler can continue to supply heat to connected heating components within its available capacity.
Video of the HDG cascade system
Find out how easy it is to heat with the HDG and experience our flexible cascade solution 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.
- Intelligent HDG Control cascade management
- 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 can be convenient, including the storage of the compact wood pellets. Thanks to HDG's flexible discharge technology, pellet boilers can be installed in a wide range of building situations and configured to suit individual project requirements.
- 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.