Traditionally, firewood is used to burn bricks and tiles, but this annular kiln designed by Chen Xian is burned with coal.

A few months ago, Chen Xian had some spare money in his hands, so he bought a few old carts and a few mules from the Yang family through Steward Yang, and hired a few handlebar styles.

Through Steward Yang, Chen Xian found the steward of the Yang family's caravan, negotiated with the other party, and asked him to help take his handlebar to Laiwu to purchase coal, and give him fifteen times to follow the car.

For the steward of the Yang family's caravan, as long as these cars follow, he doesn't have to worry about anything, which is equivalent to getting four or five benefits for each trip (a part of the fare should be given to the escort general).

After putting the sun-dried tile billets and coal into the ring kiln in layers, and after filling the four kiln chambers, Chen Xian sealed the kiln and lit it.

When this annular kiln is working, the fire head will be transferred from one kiln to the next kiln, and when the fire head passes, it can be sent to cool down and take the tile.

After taking the tiles, you can fill in new tiles and coal, and wait for the fire to burn from the other end of the ring.

In order to cool down the air supply in the kiln, Chen Xian designed a pedal windmill, which is a bit similar to the hand-cranked windmill commonly used in rural areas in the past, but it adopts some principles of modern blower equipment, which is more efficient, more violent and more laborious to shake, so it needs to be driven by pedals.

Chen Xian began to prepare these things a few months ago, and the windmill had been manufactured before the new Zhuangzi was built, and passed Chen Xian's verification. It's just that at that time, the apprentices didn't know why Chen Xian wanted to do these things.

Because the efficiency of the pedal windmill is relatively low compared with the modern air supply equipment, Chen Xian designed the annular kiln to burn once every ten days, which reduced the efficiency and prolonged the working time of cooling and tiling.

After the first kiln tile was baked, Chen Xian immediately organized the apprentices to start changing the roofs of the houses around Zhuangzi.

In the original design of this Zhuangzi, all the roofs were straw roofs, and Chen Xian took half a month to replace all the houses with tiled roofs.

When Yang Yuanwai was more than half a month later, he overheard that Chen Xian moved into the new Zhuangzi, and after replacing all the grass roofs with tile roofs in only half a month, he immediately lifted the table angrily.

Because when Yang Yuanwai saw the drawings of the new Zhuangzi sent by Chen Xian, he found that the new Zhuangzi had fatal flaws.

All the houses in this Zhuangzi are straw roofs! The grass house is afraid of fire, which is equivalent to saying that this Zhuangzi is afraid of fire.

Such a Zhuangzi only needs a few rounds of rockets to ignite the entire Zhuangzi, and whoever lives in it is like living in a big pyre, and one fire can burn it all.

Therefore, when Yang Yuanwai heard that Chen Xian had repelled the hunter's attack and successfully entered the new Zhuangzi, he was not as worried as Bai Yuanwai, and only planned to wait until a month later, when all the grass roofs of all the houses were dry, he would send someone to set fire to it at night.

He never dreamed that Chen Xian would be able to replace all dozens of rooms in Xinzhuangzi with tiled roofs within half a month.

After hearing the news, Yang Yuanwai even went to Xinzhuangzi to see it with his own eyes before he dared to believe it.

It's no wonder that Yang Yuanwai doesn't believe it, and it's no wonder that people in Dongzhuangzi have rumored that Chen Er will be able to carry the method.

Tiles are not very valuable, but the kiln for burning tiles, the household goods for making tiles, are not ready for a while, ordinary people want to build a brick kiln, from the start of construction to the tiles, to say the least, it will take several months.

Chen Xian is like a spell, he changed the roof of Zhuangzi in just half a month, which requires hundreds of thousands of watts! What's even more strange is that there are not even many fireworks in Zhuangzi!

It is not surprising that this kind of thing burns bricks and tiles, and once the kiln comes down, half of the mountain will be burned.

Isn't this a fairy art? This time, people believe even more that Chen Xian will thunder the law.

After seeing the new Zhuangzi covered with green tiles, Yang Yuanwai's body shook for a while and he almost fainted.

Back in Zhuangzi, Yang Yuanwai almost demolished his own study, and the entire Zhuangzi was frightened and silent, even the old people in Yang's mansion for decades said that they had never seen such a big fire outside.

Yang Yuanzhi made such a big fire because he knew that he had no choice but to take Chen Er, who had a new Zhuangzi.

This is equivalent to him giving Chen Xian a Zhuangzi for nothing! Yang Yuanwai felt like a fool in the play!

This is not the most serious, what is even more terrifying is that Chen Er's Lei Fa is already powerful, if you add his powerful apprentices, Zhuang Ding Bacheng, who has two hundred people in the hands of the Yang family, is not an opponent.

In this way, there is a terrible situation, what if Chen Er falls in love with the foundation of the Yang and Bai families?

At this time, Yang Yuanwai suddenly realized that this Chen Er had changed from a problem of moss to a big problem for the Yang family!

Of course, if Yang Yuanwai knew that this so-called treasure could only be beaten more than thirty times, and it would become scrap iron after the beating, he would definitely not think so.

It's a pity that he doesn't know, so although Yang Yuanwai is worried in his heart, he doesn't dare to have any ideas, now the Northern Expedition of the Song Kingdom has hit his head and broken the bloodstream, seeing that it has become difficult to ride a tiger, the Yidu Yang family misjudged the form, pulled the flag and rebelled, and now he is throwing money around, wanting to ask for an edict, he can't spare his hand to help him, only with Yang Yuanwai's own strength, he feels that there is no way to turn his face with Chen Xian.

Just when Yang Yuan was sulking, Steward Yang brought a letter.

Seeing the housekeeper cowering and pushing the door in, Yang Yuanwai suddenly became angry.

When people are angry, they often think about things in a bad way, Yang Yuanwai looked at the housekeeper and immediately remembered that this old boy had said a lot of good things to Chen Xian, and he repaired the new Zhuangzi that day, he also listened to the words of this old boy, and then made up his mind, could it be that this old boy accepted Chen Er's benefits!

The more Yang Yuanwai thought about it, the more suspicious he became, and when he looked at Steward Yang's gaze, he gradually became unkind.

Looking at Yang Yuanwai's gaze, Steward Yang's intuition was cold in his heart, but Chen Xian couldn't help but do what he dragged him to do.

Steward Yang hurriedly took out a letter from his bosom and said: "Outside the staff, Chen Er asked Yang Xiaoyi to send a letter, saying that he was talking about it, and since the staff had repaired the Zhuangzi for him, the secret of the Tang Dao would be handed over to the staff." ”

Yang Yuanwai was angry when he heard Chen Er's name now, and after listening to the housekeeper Luo Li's words, he didn't want to slap the table fiercely, and said angrily: "You old horseman, you still want to say good things for Chen Er, who killed a thousand knives, how much money did you charge him!" ”

As soon as he heard this roar, Steward Yang knelt on the ground with a plop.

After losing his temper, Yang Yuanwai suddenly reacted, and the meaning of the housekeeper's words just now seemed to be...... He hurriedly asked, "What does this letter say......

When Steward Yang, who was frightened to death, heard this, he seemed to grasp a life-saving straw, and hurriedly stammered: "Chen ...... Chen Er said that he ...... He wants to dedicate the secret of Tang Dao's creation to the outsider, this letter ...... The secret recipe is in the letter......"

When Yang Yuanwai heard this, he rushed forward in three steps and two steps, snatched the letter from Steward Yang's hand, opened the envelope, shook off the letter paper, and looked at it, and the letter read: "The secret of Tang knife forging lies in the materials, the pig iron smelted with charcoal, and annealed...... (Annealing is explained here), the non-malleable pig iron can be forged, and then the pig iron is repeatedly forged to forge into high-quality steel......"