Heating plant biomass with an electrostatic precipitator

Heating plant biomass with a arranged in an exhaust pipe of the heating system electrostatic separator for separating located in the exhaust gas of the heating system particles, said separator comprising an electrode, an electrical supply for the electrode and a counter electrode, wherein the feed for the electrode at least partially is isolated by an isolation means. The separator comprises a protective device, which prevents the precipitation of in the exhaust gas of the heating system particles on the insulation device, wherein the protection device is a heater which is suitable in normal operation of the separator, an outer surface of the insulating means to a required for a thermophoresis temperature to heat, wherein the temperature of the outer surface is higher than the temperature of the exhaust gas flowing around the isolation means. The heating device comprises a heat conductor which is connected to a region of the heating system and the insulation means in thermal contact, with the range of the heating system has a higher temperature than the exhaust gas flowing around insulation means.