Tanks with ceramic enamel inner coating, without heat exchanger, suitable for storing domestic hot water. The ATF models are ideal for operation with gas-powered hot water storage tanks and an external heat exchanger, thus by increasing the amount of standby hot water, consumption peaks can be reliably covered. From a volume of 200 liters, the tank has a cleaning flange, on which periodic maintenance can be carried out.

The insulation is hard but flexible polyurethane foam PVC (SKAY) and removable Neodul insulation. Available from 700 liters with removable or fixed insulation. The corrosion protection of the tank is provided by the magnesium protective anode in the tank.