Hot water cylinder Galmet SGW(S) Tower Grand 500 — standing, enameled, spiral coil 4.3 m², polyurethane insulation, PVC casing

The Galmet SGW(S) Tower Grand 500 is a standing hot water cylinder with an enameled tank and an integrated spiral coil heat exchanger offering 4.3 m² of exchange surface. Designed for domestic hot water storage and direct connection to heat pump systems, the cylinder combines an anti-corrosion enameled interior with polyurethane thermal insulation and a durable PVC outer casing. The unit is intended for residential installations where efficient heat transfer, reliable storage and compatibility with low-temperature heat sources are needed.

Advantages

The enameled inner surface reduces corrosion risk and extends the service life of stored water, while the spiral coil with 4.3 m² exchange area provides efficient heat transfer from external heat sources such as heat pumps. Thick polyurethane insulation minimizes standby heat losses and helps maintain water temperature with lower energy consumption. The PVC casing offers mechanical protection and a neat exterior finish suitable for technical rooms and utility spaces.

Suitable for

• Domestic hot water storage in single- and multi-family homes
• Integration with heat pumps and low-temperature heating systems
• Renovation projects where replacement of a storage cylinder is needed
• Installations requiring compact, standing vertical cylinders

Key specifications

• Type: standing vertical hot water cylinder with integrated spiral coil
• Tank protection: enameled inner surface for corrosion resistance
• Heat exchanger: integrated spiral coil with 4.3 m² exchange area
• Insulation: polyurethane thermal insulation to reduce heat loss
• Outer casing: PVC for mechanical protection and finish
• Application: domestic hot water storage and heat pump connection

How to use

Install the cylinder in an indoor, frost-free location on a level surface and connect the spiral coil to the heat pump or other external heat source following local regulations and installer guidelines. Connect cold water inlet and hot water outlet to the domestic distribution system, and fit required safety devices such as pressure relief valve, temperature sensor and check valves as specified by installation standards. Commission the system by filling the tank, purging air from the coil and pipework, and verifying correct thermostat and control settings to ensure proper operation and temperature regulation.

Usage recommendations

To ensure long-term performance, schedule regular inspections of anode protection (if present), verify insulation integrity, and check connections for leaks. Use system-compatible temperature and pressure safety devices and follow heat pump manufacturer guidance for coil flow rates and operating temperatures.