CAS accumulation tanks are engineered for integration into central heating systems with solid fuel firing boilers (Bio-Tec, BioSolid, EKO-CK P (EKO-CK), EKO-CKB P (EKO-CKB), EKO-CKS, CentroPlus, CentroPlus-B…) in order to store the heat energy and enable economical and efficient functioning of the boiler. CAS are produced in seven different sizes (volumes 325, 475, 740, 940, 1435, 1920, 2960, 3820 and 5055 litres) and in four types: as an accumulation tank (CAS), as an accumulation tank for sanitary hot water processing with a built in stainless steel water heater (CAS-B), with an built in tube exchanger for connecting the solar collector (CAS-S), as well as with the built in stainless steel water heater and an tube exchanger (CAS-BS). These options enable contemporaneous use of different kinds of renewable energies, making them ecologically acceptable and economical in use.

With a CAS accumulation tank connected to the system, the boiler firing can be performed in a suitable period of the day. If outdoor temperatures are milder, the room heating and the sanitary water temperature levels can be maintained across several days. Accumulation tanks are produced in accordance with ISO 9001/2008.