几年来对东北、西北、华北的炕灶考察和对各种火炕搭法的优缺点比较后认为,倒卷帘(回洞)火炕是有发展前途的。这种火炕同其它火炕搭法相比具有以下优点:第一、火炕砌筑位置不受房屋间量的限制,设在南侧、北侧、中侧,采取横,顺砌炕位置均可,只要是烟囱、炉灶、火炕都在 In the past few years, the inspection of the northeastern, northwestern, and northern areas has compared the advantages and disadvantages of various types of fires. After that, it is considered that reversing the curtain (returning holes) is promising. This kind of firebolt has the following advantages compared to other firebolts: First, the location of firework masonry is not limited by the number of houses. It is located on the south, north, and the middle side. It can be used as long as the horizontal and vertical masonry positions are adopted. The chimneys, stoves, and fire pits are all