Technology log wood pellet combi boiler
This is how the combi boiler works
The inserted piece of wood is automatically ignited via the pellet flame when the heating system requires energy. After the logs have burned down, pellet operation starts automatically as required. In this case, only the upper area of the buffer tank is heated. In the evening, the operator can then heat comfortably with logs again.
The unique principle of combined firing of pellets and logs with two combustion chambers and two sensor systems for both types of fuel in one device. A noise-insulated conveyor turbine transports the pellets to the combustion chamber, where they are automatically ignited. For filling with logs, the HVZ-SP offers a large filling chute for logs up to 1/2 m in length. The perfect, low-smoke ignition using the powerful Pellets Power Start then ignites the logs from below and ensures exceptionally rapid formation of embers.
The result of two sensor systems is a very clean combustion. Only the principle with the 2 combustion chambers and the dual sensor system in connection with an intelligent control ensures the advantage of a highly efficient combustion quality for both types of fuel - even during the so-called heating-up and transition phases. Overall, this means better emission values and lower fuel consumption with fully automatic operation without manual intervention. The triple burn-back protection protects the pellet store from a fire caused by declining, hot gases or even flames.
Lambda probe
The Lambdasonde measures the oxygen contained in the exhaust gas. The measured value is then passed on to a controller, where it is compared with the oxygen content in the atmospheric air. The controller then determines the oxygen requirement for optimal combustion. The air flaps on the boiler are then controlled accordingly.
