本发明涉及一种具有组合的燃烧室在开放空气的加热系统，用于操作用于燃烧的粒料和/或木材，点火器用于点燃所述粒料和/或木材，一个通信地连接到所述燃烧室烟囱用于燃烧放电产生的 废气，丸罐和/或用于粒料和/或木材和用于引入新鲜空气进入燃烧室内的Lufteinleiteinrichtung的的存储木材仓库。 加热系统，其特征在于，使得预热的新鲜空气被引入到被热连接到与Lufteinleiteinrichtung燃烧室联接通风井燃烧室，其特征在于，（4）中提供的通风管道的向燃烧室的顶侧（19）的部分（20） ，和一个壳体（28）被提供，其包围所述燃烧室（4），所述燃烧室（4）和壳体（28）形成的中间空间之间。 通风管道通向该中间空间中，以便在间隙中的空气由通风轴吸入。

The present invention relates to a heating system for operation in the open air with a combined combustion chamber for burning pellets and / or wood, an igniter for firing the pellets and / or of the timber, a communicatively connected to the combustion chamber chimney for discharging the produced during the combustion exhaust gases, a pellet tank and / or a timber depot for the storage of the pellets and / or of wood and a Lufteinleiteinrichtung for introducing fresh air into the combustion chamber. The heating system is characterized in that a thermally coupled to the combustion chamber ventilation duct is connected to the Lufteinleiteinrichtung so that preheated fresh air is introduced into the combustion chamber, wherein a portion (20) of the ventilation duct on a top side (19) of the combustion chamber (4) provided , and that a housing (28) is provided, which encloses the combustion chamber (4), wherein between the combustion chamber (4) and the housing (28) an intermediate space is formed. The ventilation duct opens into this intermediate space, so that the air located in the interspace is sucked from the ventilation duct.