Galmet double-jacket horizontal water heater SGW(L)P E120L in yellow polyurethane insulation

The Galmet double-jacket horizontal water heater SGW(L)P E120L in yellow polyurethane insulation is a horizontal storage tank designed for indirect hot water supply. The unit features an outer jacket that enables heat exchange with external heating circuits, making it suitable for connection to boilers, heat pumps or solar thermal systems. Polyurethane thermal insulation in a yellow finish reduces standby heat loss and helps maintain water temperature over extended periods. The compact horizontal layout is intended for installations where vertical space is limited and where an indirectly heated storage vessel is required.

Advantages

This water heater provides stable storage capacity for domestic or light commercial hot water needs while allowing indirect charging from various heat sources. The double-jacket design enables efficient heat transfer between the tank and an external heating circuit without direct mixing of fluids. Polyurethane insulation minimizes heat loss and supports energy-efficient operation. The horizontal casing simplifies installation in basements, boiler rooms or under lofts where vertical clearance is restricted.

Suitable for

• Domestic hot water storage in homes with a separate boiler or heat pump
• Integration with solar thermal systems for preheating domestic water
• Light commercial hot water supply in small apartments, guesthouses or workshops
• Installations with limited vertical space requiring a horizontal tank

Key specifications

• Configuration: double-jacket horizontal storage tank for indirect heating
• Nominal water capacity: 120 litres
• Thermal insulation: polyurethane foam
• Insulation color: yellow
• Orientation: horizontal
• Heat exchange: outer jacket for connection to external circuits (boiler, solar, heat pump)

How to use

Install the horizontal storage tank on a stable, level base and connect the tank’s supply and return ports to the external heating circuit according to installation diagrams and local regulations. Connect domestic cold water inlet and hot water outlet to the building plumbing system, and ensure appropriate safety devices such as pressure relief valves and expansion vessels are fitted. Commission the system by filling the tank, venting air from the circuit and verifying connections for leaks. Operate the unit as part of an indirectly heated hot water system, controlling charging and temperature via the primary heat source or controller.

Usage recommendations

For optimal performance and longevity, install the Galmet SGW(L)P E120L in a frost-protected, ventilated space and follow the manufacturer’s instructions for hydraulic connections and safety fittings. Regularly inspect insulation condition and pipe connections, and schedule periodic maintenance of the primary heat source and safety components. Where used with solar systems, include appropriate controls and a check valve to prevent thermal backflow.