elektrokessel attack electric exellent 15 kw bis 5 kW :contentReference[oaicite:2]{index=2}

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resulting in additional energy savings

practical wood firing

The vacuum tubes are constructed from high-quality borosilicate silicon glass

elektrokessel attack electric exellent 15 kw bis 5 kW :contentReference[oaicite:2]{index=2}ATTACK Electric Excellent 15 kW Product description The ATTACK Electric Excellent 15 is a wall mounted electric boiler for forced circulation heating systems. Its PID control precisely regulates the heating stages, ensuring stable, demand based operation. Control via a room thermostat is possible; GSM smartphone connectivity is available as an option. Domestic hot water is supplied via an external storage tank and a 3 way valve (TUV operation).