Storage water heater Galmet Wymiennik SGW(L)P 140L horizontal double-jacket insulated with polyurethane

Galmet Wymiennik SGW(L)P 140L horizontal double-jacket insulated with polyurethane is a 140‑litre horizontal storage water heater designed for integration into domestic and light commercial hot water systems. The unit features a double-shell construction that separates the potable water tank from the external jacket, allowing connection to an external heat source while maintaining a sealed potable-water circuit. Polyurethane insulation around the tank reduces standby heat loss and improves thermal efficiency in horizontal installations where space or mounting constraints prefer a lateral orientation.

Advantages

The double-jacket design enables flexible heat-source coupling and facilitates heat exchange without direct mixing of fluids. Polyurethane insulation provides low thermal conductivity and contributes to reduced energy losses during periods of non-use. The horizontal layout allows installation in locations with limited vertical clearance, and the compact 140‑litre capacity balances storage volume with footprint for small to medium applications. The construction supports typical service access points for maintenance and connection to circulation systems.

Suitable for

• Domestic hot water storage in apartments or houses with limited vertical space
• Light commercial installations such as offices, small workshops, or guest accommodations
• Systems using external heat sources (boilers, heat pumps, solar thermal circuits) requiring a sealed potable-water tank
• Retrofit projects where a horizontal tank fits available installation cavities

Key specifications

• Storage capacity: 140 litres
• Orientation: horizontal
• Construction: double-jacket (inner potable-water tank with outer jacket for heat transfer)
• Insulation material: polyurethane foam
• Intended connection: compatible with external heat sources and heat-exchange circuits
• Application: domestic and light commercial hot water storage

How to use

Install the Galmet SGW(L)P 140L horizontally on a level support capable of bearing the filled weight. Connect the potable water inlet and outlet according to plumbing design, and integrate the outer jacket connections with the selected heat source or heat-exchange loop following the system diagram. Ensure all safety valves, circulation pumps, and control devices are installed and commissioned by a qualified installer. Fill, vent air from the system, and inspect for leaks before regular operation. Follow local regulations for potable water systems and electrical safety where controls or sensors are present.

Usage recommendations

For optimal performance, pair the horizontal storage heater with a heat source sized to match typical draw patterns; insulate external piping to reduce distribution losses and schedule periodic inspection of anode, fittings and insulation integrity as part of routine maintenance.