Bivalent heat exchanger 500l SGW(S)B TOWER BIWAL with two spiral coils, enameled, rigid polyurethane foam, skay, vertical freestanding 26-509000N

Bivalent hot water heat exchanger – an efficient source of hot water

This Tower Biwal 500 hot water heat exchanger is a versatile solution for preparing domestic hot water, combining the ability to be powered from a central heating boiler and solar collectors. The construction with two spiral coils provides a large heat exchange surface and maximum utilization of available energy sources. The tank is enameled, which guarantees durability and corrosion resistance, and the hard polyurethane foam insulation minimizes heat loss. The whole is enclosed in an aesthetic skay casing, which improves the appearance of the installation and facilitates its integration with the surroundings.

Construction and application

The Tower Biwal 500 heat exchanger is designed for single-family homes and public buildings where the demand for hot water is high and variable. Two spiral coils allow independent operation with different heat sources – solar collectors and a central heating boiler, as well as their simultaneous use to increase efficiency. The lower coil is dedicated to solar collectors, and the upper one cooperates with the central heating boiler, allowing for quick water heating even with high consumption. Additionally, it is possible to install an electric heating set as a support or emergency heat source.

• Versatility: Ability to cooperate with various heat sources (central heating boiler, solar collectors, electric heater).
• Efficiency: Two spiral coils with a large surface area ensure efficient heat exchange and rapid water heating.
• Durability: The enameled tank provides corrosion resistance and long device life.
• Insulation: Hard polyurethane foam minimizes heat loss, reducing operating costs.
• Aesthetics: The skay casing improves the appearance of the installation and facilitates its integration with the surroundings.
• Convenient installation: Concentrating all hydraulic connections at the back of the exchanger facilitates installation and ensures an aesthetic appearance of the installation.
• Anti-corrosion protection: Ceramic enamel EXTRA GLASS® and magnesium anodes ensure hygienic use of the tank and protect against corrosion.

User parameters and additional information

The 500-liter capacity makes the Tower Biwal heat exchanger ideal for families with a higher demand for hot water or for public buildings with moderate usage intensity. Energy efficiency class B indicates reasonable energy consumption during operation, which translates into lower bills for heating domestic hot water. The steel material of the tank guarantees the strength of the structure for many years of operation, and the possibility of using an active titanium anode (optional) extends the life of the device and reduces the need for maintenance. It is also worth mentioning the possibility of installing a circulation pump, which provides instant access to hot water at every point in the installation, and a clear thermometer that facilitates monitoring the operation of the device.