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Storage water heater Biawar Wymiennik MEGA W-E 125.81 125 L with spiral coil, model 16411
Biawar Wymiennik MEGA W-E 125.81 is a 125-litre storage water heater with an internal spiral heat exchanger designed to store and distribute domestic hot water. The tank integrates a coiled heat exchanger (wężownica) that allows connection to external heat sources such as boilers, solar thermal systems or other low-temperature circuits, providing stable hot water supply and enabling indirect heating. The unit is intended for residential and light-commercial installations where a buffer tank with heat-exchange capability is required.
The storage water heater combines a high-capacity storage volume with an internal spiral coil that increases heat transfer efficiency while maintaining a compact footprint. Its design supports indirect heating from various external sources, allowing integration with existing heating systems. The enclosed tank construction reduces heat loss and ensures consistent hot water availability, while the spiral coil provides reliable separation between primary and domestic water circuits.
Install the water heater according to local regulations and manufacturer mounting guidelines, ensuring correct hydraulic connections for the spiral coil and domestic water inlets/outlets. Connect the coil to the chosen external heat source following the recommended flow direction and include necessary safety devices such as pressure relief valves, expansion vessels and temperature controls. After filling and bleeding the system, verify correct operation and temperature regulation before regular use.
For optimal performance, use the spiral coil with a heat source that provides stable flow and temperature control. Regularly inspect insulation, fittings and safety devices, and perform periodic maintenance that includes flushing the coil if required by water quality. Ensure proper placement of thermostats and mixing valves to avoid scalding and to maintain energy-efficient operation.
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