A Combimaster is intended for installation on ventilation and air ducts. The Combimaster is not suitable for fireplaces, wood stoves or multi-fuel stoves. For this we recommend the Firemaster Aspirotor or Topmaster. A Combimaster keeps rain out of your chimney. Rain can cause a lot of inconvenience over time, such as wet spots coming through the wall, cement that starts to come loose or hail and the like. With the new Combimaster you can prevent this inconvenience because prevention is cheaper than cure. Bird nests and other blockages are also common complaints about chimney ducts. Complaints such as stench in the bathroom, a blocked extractor hood or a toilet that cannot get rid of its odours. Sometimes the problem can be solved by removing the nest or by chipping stones out of the wall. In this case too, prevention is better than cure because with the new Combimaster a bird does not stand a chance. Rain caps rust, which is not always appreciated by a chimney sweep. But the Combimaster, which is universally mounted and has a sweeping hatch, never needs to be removed from your chimney. The indestructible hood is not an unnecessary luxury but offers a guarantee to prevent a lot of inconvenience in the future.