坛形节煤炉是一种既省煤火旺又不易灭火的理想炉。这种炉子的炉膛由原来的圆锥形去尖改制而成。它比旧式炉子每天可节约煤20～25%。它的形状可根据所占位置来确定。如放在墙角,宜做成椭圆形,既少占地又不减少炉内容量。如地方宽散,可采用坛形炉。一般4～6口人之家,做饭兼取暖,炉的直径为30厘米,上口为8～10厘米; The altar-shaped coal-saving furnace is an ideal furnace that saves both coal and fire and is not easy to extinguish. The hearth of this furnace was reshaped from the original conical tip. It can save 20 to 25% of coal per day than older stoves. Its shape can be determined based on the occupied position. If it is placed on a corner, it should be made into an oval shape, which will occupy less land and will not reduce the amount of furnace contents. If the place is wide, an altar furnace can be used. General 4 to 6 people’s home, cooking and heating, the diameter of the furnace is 30 cm, the mouth is 8 to 10 cm;