Accumulator systems
Storage system HSS 600
The HSS600 storage system is the ideal addition to modern Hargassner heating systems.
It impresses with its compact design and high efficiency. The HSS600 reliably stores excess heat, ensuring a consistent heat supply while reducing energy losses and offering simple, time-saving installation.
We offer various solutions to suit your heating system:
Accumulator systems
Storagesystem HSS600
The new HSS600 storage system is an excellent addition to the Hargassner pellet boilers in the Nano-PK series up to 32 kW. With a diameter of 790 mm and a height of 2,000 mm, including the insulation, this storage system not only offers a compact design, but also an efficient solution for storing heat.
The Hargassner Nano-PK series is known for its high efficiency and environmental friendliness, and the HSS600 has been specially developed to optimally support these characteristics. The storage system HSS600 allows excess heat generated during heating operation to be stored and released when required. This ensures an even heat supply and helps to reduce energy losses.
For quick and easy installation, Hargassner offers a suitable pipework set for the respective boiler type. This not only simplifies installation but also saves time and effort.

Storagesystem HSS600 HE
The storage puffer has been specially developed for hybrid solutions combining biomass and heat pumps, ensuring perfectly coordinated interaction between both systems. Thanks to energy efficiency class A with vacuum panels and foam insulation, it reduces heat losses to an absolute minimum.
- Energy efficiency class A achieved through vacuum panels with foam insulation
- Up to 10% lower standby losses thanks to vacuum panels in the outer casing

Storage system HSS600 WP
Thanks to its particularly energy-efficient insulation technology, it reduces heat losses to an absolute minimum while achieving energy efficiency class A. Innovative stratification lances ensure optimised temperature layering for maximum efficiency. This makes the storage tank ideal for heat pump operation and perfectly suited to modern hybrid heating systems.
- Ideal for heat pump operation
- Innovative flow-optimised stainless steel stratification lance
- Simple and fast installation thanks to coordinated system components
- The fresh water station can be mounted directly onto the buffer tank using a mounting plate

Your advantages
Storagesystem
HSS600 with stratification lances
- 600 l capacity
- Energy efficiency class A
- Flow-optimised stainless steel stratification lances
- Quick and easy installation
- Optimised for heat pump operation
- Perfect for hybrid solutions
Technical data
| Technical data | Unit | |
|---|---|---|
| Accumulator volume | Litres | 590 |
| Diameter Ø with insulation for energy efficiency class C | mm | 790 |
| Height with insulation | mm | 2,000 |
| Tilt dimension with insulation | mm | 2,150 |
| Connections 4 pieces internal thread | inch | 6/4 |
| Connections on boiler side 2 pieces external thread | inch | 5/4 |
| Weight | kg | 110 |

















