The calandria arrangement in the furnace floor flue gas channel that is formed by the ondol pier bricks with circular sections greatly lowers the local resistance loss of flue gas.
由圆形截面的炕墩砖，在炉底烟气通道中形成的排管式排 列，将大大降低烟气的局部阻力损失。
Have gathered heating, floor heating, air conditioning, heating Wall hanging furnace river north by now.
现在北方人选用的干流采暖方法有会集供暖、地暖、壁挂炉、空调。
Ash is overmuch, fire resistant layer below the furnace, and the total floor joists top and on the high side.
除灰过多，火层低于炉栅顶端，而总层又偏高。
Ash is overmuch, fire resistant layer below the furnace, and the total floor joists top and on the high side.
除灰过多，火层低于炉栅顶端，而总层又偏高。
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