HDG K Cascade 74-126

The HDG K cascade 74-126 offers maximum operational reliability and top convenience in the medium power range.

Log wood
Wood chips
Power levels: 70 kW, 90 kW, 120 kW
  • 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.

Say goodbye to your oil heating!

Pellet boilers have successfully established themselves as a climate-friendly heating alternative in recent years. They offer unbeatable advantages over oil heating in particular!

Take advantage of the high government subsidies of up to 45 percent and more that are available today. Whether it's a replacement bonus or a scrapping bonus – switching from an oil-fired heating system to a pellet boiler is more worthwhile today than ever before.

HDG Pellethaus

Technology makes the difference

Powerful, demand-oriented and safe

For increased power requirements, HDG heating systems can be combined with each other in a cascade configuration. The advantages of a cascade solution are, for example, the high power range, maximum operational reliability and demand-oriented heat supply, especially when energy requirements fluctuate. With HDG, a cascade consists of two boilers that load into a common accumulator.

The HDG Compact cascade thus combines the potential of a boiler from the large power range with the unrivalled flexibility of a multi-boiler system.

Perfectly adapted to the heat demand

A cascade adapts perfectly to the heat demand. When there is a high demand, both boilers run. When demand is low, only one boiler is switched on alternately. Alternating operation reduces the operating hours per boiler and the thermal load decreases. This increases the life expectancy of the installed components.

Clever HDG cascade management

Using the HDG accumulator management system, the installed boilers are alternately assigned the role of lead boiler. Due to the completely autonomous operation of both boilers, the failure of one boiler has no effect on the operation of the second boiler

Service during operation

The necessary maintenance can take place during operation, as the second boiler continues to run anyway. In addition, the HDG cascade offers maximum safety: If one boiler is not working, the second boiler takes over the basic supply for the connected heating components.

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

Please to watch this YouTube video.

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.

HDG Control Systemregler
  • 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 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.

Austragung Pellet Übersicht
  • 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.
  • "Our dual system combines high output with maximum reliability – and at an affordable price!"

    Stefan Hild