Layered buffer tank with coil Wolf SE-2-500 silver color 8908582

Application and Construction of the SE-2-500 Tank

The 500-liter steel tank is a robust solution for installations requiring a large volume of domestic hot water. Its construction is based on stratified water heating, which preserves the natural temperature layering within the tank – the hottest water remains at the top, while cooler water settles at the bottom. This arrangement increases the efficiency of the heat source by avoiding the need to continuously mix the entire water volume. The interior of the tank is protected against corrosion through the application of a double enamel coating and the installation of a magnesium sacrificial anode. This combination of two protection methods significantly extends the device's service life, even in waters with varying hardness levels.

Performance and Thermal Insulation

A key feature of this model is the low-mounted heating coil, which is additionally double-enamelled. This design ensures rapid heating times and high continuous performance during water heating, which is crucial for high domestic hot water demands. Thermal insulation made of rigid polyurethane foam surrounds the tank on all sides, minimizing heat losses and maintaining water temperature for extended periods without frequent boiler activation. Energy efficiency class C confirms the device's favorable energy balance under standard operating conditions. To enhance installation flexibility, a service opening is provided for easy inspection and cleaning of the interior, along with a dedicated connection for mounting an additional electric heating element – useful, for example, as an emergency or supplementary heat source during transitional periods.

Summary of Construction Features

The device features an aesthetically pleasing silver-grey outer casing that complements most modern boiler rooms. Thanks to the use of rigid insulation foam and a solid steel construction, this model offers reliable operation in central heating and domestic hot water preparation systems. The large 500-liter capacity meets the simultaneous demand of multiple users, while the tank's stratified design optimizes energy consumption by the heat source. The anti-corrosion protection, consisting of enamel and a magnesium anode, acts as a dual barrier against moisture and aggressive chemical agents present in the water. The low-mounted coil ensures rapid achievement of the required outlet temperature, which is critical during short boiler or heat pump operating cycles. Polyurethane foam insulation effectively prevents heat loss to the surroundings, directly translating into lower heating bills. The additional heating element connection gives the installer the option to expand the system with a second heat source without replacing the entire tank or modifying its main metallic structure.