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Why choose G-Energy accumulator?

Gebwell G-Energy® Energy Accumulator – for optimising heating

In water-circulating heating systems, the heat generated by the heating device is stored in energy accumulators to be used to heat the building and domestic water. The Gebwell G-Energy® energy accumulator is a Finnish product, manufactured by heating experts at the Leppävirta factory. Our extensive product range includes models to be used with different heating methods.

The G-Energy energy accumulator enables different heating systems to be used in parallel. The accumulator can be connected to an underfloor heating or radiator network. G-Energy accumulators are available for single-family houses and large properties. Our range of models includes accumulators with 501L, 1000L, 2000L, 3000L, 4000L and 5000L capacities.

Easy to handle

Thanks to the fixed steel frame on the bottom of the accumulator, the Gebwell accumulator is easy to transport, lug around and install, regardless of model or size. The accumulator has detachable insulation, which makes it easy to carry into confined spaces without needing to remove doorframes. For example, the 1,000L accumulator has a diameter of 850 mm without insulation

The insulation segments are attached to each other with quick latches, which makes it easy to remove or install them. The accumulator’s connections do not reside inside the insulation; to facilitate pipe installations, the connections extend to the insulation surface level. Adjustment legs (adjustment tolerance 0-60 mm) allow the accumulator to be easily set to stand vertically even on an uneven surface.

High quality and long life-cycle

The Gebwell factory in Leppävirta employs strict quality controls. Robot welding ensures first-grade welding and consistent quality. All of the tanks are painted with primer and pressure tested using water. The insulation material is pressure cast polyurethane, which has very good thermal insulation capacity and minimal thermal loss. Gebwell’s vertical cylindrical accumulator provides the best thermal option in terms of shape. Ease of use has also been taken into consideration in the design of connections. The drain connection located at the front of the accumulator makes it easy to drain the accumulator.

Sufficient fresh water

Using an energy accumulator is an ecological and economic way to produce a comfortable, even room temperature and sufficient hot water. The accumulator stores and distributes the heat produced by heating systems, which is then used to heat the property and domestic hot water. In Gebwell accumulators, domestic water is heated in a copper coil, which offers a quick turnover of water. The coil distributes water energy-efficiently, ensuring freshness. Coils are ordered for accumulators separately, excluding G-Energy Coil hot water heater, which has coils installed.

Why choose G-Energy® Accumulator

  • Manufactured in Finland
  • Detachable insutlation
  • Adjustment legs
  • Durable and thermally efficient


Static Image The steel frame on the base of the accumulator facilitates handling and transportation.
Static Image The accumulator’s detachable insulation segments are attached to each other with quick latches.
Static Image The accumulator’s detachable insulation segments are easy to detach
Static Image and reattach.
Static Image The accumulator is easy to set on the vertical using the adjustment legs.