UniWok - Hopf Kunststofftechnik

The modular storage system for wooden pellets.

Are you planning a new building or do you want to replace your old heating system? Then it's time to look at renewable heating solutions. Our flexible pellet storage system can be adapted to virtually any room situation. Find out more about the application options of UniWok®.

Function and benefits

Thanks to its modular design, the UniWok® storage system is a compact system that can be installed in any room much more flexibly than other methods.

As there is no need for a sloping floor, the individual UniWok® modules can be set up easily and quickly in any room with a rectangular base area, providing maximum utilisation. The stored pellets are accepted "from above".

In addition, avoiding the use of electronic components inside the storage room guarantees maximum operational reliability.

fully automatic control
saves space thanks to modular design
flexible use: no limits are set in terms of space
no sloping floor required
maximum operational safety
watertight to a height of 20 cm

UniWok® module built in series (size 750 x 750 mm each)

The UniWok^® system in action

UniWok^® RAPS – the manual alternative

The UniWok® RAPS storage system is cheaper thanks to its manual changeover unit. In this design, the changeover of the individual removal points is operated manually via a plug-in system. The individual floor modules can also be flexibly laid out in the rooms.

manual control
cheaper than UniWok®
space-saving thanks to modular design
flexible use: no limits are set in terms of space
no sloping floor required
maximum operational safety
watertight to a height of 20 cm

UniWok® RAPS module 2 x 3 (size 750 x 750 mm each)

Do you have any questions? We have the answers.

Where do we find spare parts?

From your trusted heating engineer.

Who is responsible for servicing?

A heating engineer should take care of servicing. If necessary, we also offer the corresponding training.

How often does the system need to be serviced?

Annually as part of the maintenance on your heating system (duration: approx. 30 min)

How much maintenance does the system need?

The system requires annual maintenance.

Which boiler is the system suitable for?

The system is suitable for all boilers that have a suction motor.

What is the difference between UniWok® and UniWok® RAPS?

UniWok®: Thanks to the automatic control and simple assembly, the system is perfectly designed for large systems.
UniWok® RAPS: Thanks to to the manual changeover unit and the attractive price, the system is ideally suited to small systems.

How many tonnes of wood pellets can the storage system house?

The storage capacity for wood pellets in a UniWok ®system is individual and depends on the way it has been installed. Thanks to its modular design, the system is extremely space-saving and flexible in use. An example: about 800 kg of pellets can be stored on a base of 75 × 75 cm and a room height of 230 cm.

What can be done if the 75 x 75 cm grid size does not fit?

If the 75 x 75 cm grid size does not fit, we offer wall connection profiles. We are happy to assist you with the planning of your system as required.

Does the storage system have to be in the immediate vicinity of the heating system?

No. Up to 30 m distance and a height difference of up to 3 m are possible.

Customer testimonials

With the UniWok^®, I found a system that I can easily install myself and also adapt to the space I have available. An affordable alternative for ambitious DIYers.