-15-When heating during warmer period, in particular upon a sudden changein weather (warming up), the chimney effect may be unfavourable(poor). It is demonstrated by a slow, tame heating in the grate, thecombustion products are not perfectly carried away. In that case, it shallbe necessary to poke the fire in more intense way and more frequently,to load smaller doses of fuel, the ash-can should be less full with ash andall the regulation controls (primary and secondary flap of combustion airsucking) should be open to maximum.IMPORTANT WARNINGSDuring the stove operation never open or lift the inspection hole (Fig. 1 -position f), there is a risk of fire, burn, suffocation with fume andintoxication with CO gas (it is extremely poisonous gas, carbon oxide,chemical symbol CO, it is generated during imperfect combustion, it isinvisible and odourless)!!! The stove is made of the individual parts (sections), freely placed onto each other andcemented on the connections, which ensures their stability and tightness. It is forbidden to willingly and inadvertently impact the stove with anything and in anyway, in order to prevent the breach of any stove part on the cemented connections.Furthermore, nothing can lean on the stove even when it is cold. It is also forbidden to manipulate with the stove parts during heating in any other waybut using the method specified herein! The stove must not be put into operation under any circumstances that would lead tothe risk of a temporary cause of the explosion of gases, dust or vapours and it also maynot be in operation during the work presenting the risk of explosion or fire (for examplethe bonding of floor covering, etc.) The stove may be operated according to the Operation and Service Manual only byadult persons with legal capacity. No hazardous substances may be present on the place where the stove is located. It is forbidden to pour any liquid, snow, ice, powder and loose material over the stove. No loose, powder, spray or gas materials and particles such as flour, the contents ofsprays, etc. may be dispersed onto or into the stove or its surroundings. The power of the stove may not be increased in any other way but using the regulationcontrols installed by the manufacturer on the stove. When handling with the regulation controls, the loading glass door, tube door, bakingtray, grill in the furnace ash can door, etc., always use the supplied handling heat-