Storage water heater Galmet Vulcan SGW(S) standing with spiral coil, 100 L, model 26-105500

Galmet Vulcan SGW(S) standing storage water heater with a built-in spiral coil and 100 L capacity is designed for domestic hot water storage and heat exchange. The unit provides buffer volume for DHW systems and allows heat transfer from external heat sources such as boilers or solar thermal circuits via the internal spiral heat exchanger. The vertical design fits residential plant rooms and utility spaces where combined storage and indirect heating are required.

Advantages

The integrated spiral coil enables efficient heat transfer between the boiler or solar loop and the potable water without direct mixing of heat sources. The 100 L capacity offers sufficient buffer for typical household hot water demands while reducing short-cycling of external heat generators. The standing orientation and cylindrical shape simplify installation in limited floor footprints and allow standard plumbing connections for inlet, outlet and coil circuits.

Suitable for

• Domestic hot water storage in single-family homes and apartments
• Integration with gas, oil or solid-fuel boilers for indirect DHW heating
• Connection to solar thermal systems as a storage and heat-exchange buffer
• Systems requiring separation of potable water and external heat transfer circuits

Key specifications

• Storage volume: 100 litres
• Configuration: standing (vertical) tank with internal spiral heat exchanger
• Heat exchanger type: spiral coil for indirect heat transfer
• Application: domestic hot water storage and integration with external heat sources
• Typical installation: indoor utility or plant room with standard plumbing connections

How to use

Install the Galmet Vulcan SGW(S) vertically on a level surface with appropriate support and room for service access. Connect the potable cold water inlet, hot water outlet and the coil connections to the external boiler or solar loop according to the installation manual and applicable plumbing codes. Commission the system by filling the tank, venting air from the coil and DHW circuits, setting required temperatures on the heat source, and checking for leaks. Regularly inspect safety valves and insulation integrity as part of routine maintenance.

Usage recommendations

Ensure compatibility between the spiral coil circuit and the heat source by verifying operating pressures and temperatures. Fit appropriate safety devices such as pressure relief valves, non-return valves and anodes if specified by the installer to protect against corrosion and overpressure. For solar integration, include a controller and pump station to manage charging of the tank and prevent stagnation in the solar loop.