Buffer tank VARICAL 

For energy generation in the heating sector, a decentralised heat supply plays an increasingly important role. Often, several energy sources are used in the building, which contribute to the heat and power supply together or separately, as conditions dictate. Since the supply of renewable energy is also very variable both throughout the day and according to the season, a good storage capacity with low heat losses and good stratification is important. When retrofitting buildings to achieve the greatest potential for climate action, maximising use of a small space is an important factor as larger volumes increase the potential for saving CO₂ and costs. VARICAL — the modular buffer store system — has been developed for this application. It offers great advantages in terms of space requirements, ease of installation and set-up, especially with limited access. AREAS OF APPLICATION Solar heat Biomass Heat pumps District heating Combined heat and power Power plants Power-to-heat EASY ACCESS MODULAR SYSTEM The individual modules can be taken through 70 cm wide doors and usually also through the narrow hallways and entrances typical of existing buildings. SPACE-SAVING INSTALLATION Compared to individual thermal stores, with VARICAL it is often possible to achieve the same large storage volumes in half the installation footprint.