Shi Xiaorui thought and thought, and picked out a close heating device from her memory: radiator.

Radiators are basically installed close to the wall, through the hot water in the radiator to increase the temperature of the house.

Of course, Shi Xiaorui didn't want to challenge the invention of radiator. She suddenly thought that if the smoke exhaust passage of the heated kang was not exposed, it must be hidden somewhere. Of course, there was no high-tech means in ancient times, so the most possible way was that the heated kang was only installed in the room near the outside of the house, Directly from the outside of the house where the Kang is attached to dig a hole out, or... Leave the passage in the wall?

Shi Xiaorui immediately found inspiration, if it's like a radiator, lead the smoke into the wall, and then leave a chimney above the house, isn't that ok?

There is no visible smoke exhaust pipe in modern Kang, because there is a Kang wall built in the room. The smoke exhaust pipe is directly inside the Kang wall, which can not only increase the temperature of the room, but also look more beautiful.

But Shi Xiaorui didn't think of this. She used her soul painting technique to add a wall beside her lonely fire Kang, and then drew a square pipe on the wall, leading to the upper left corner of the fire Kang.

Lu Xi ran fooled today's homework by writing and painting. He threw away his pen and came to visit Shi Xiaorui's masterpiece. He gave an honest evaluation: "Niang, you are so ugly."

Shi Xiaorui hasn't been hit. It's a design drawing. What's the beauty of a design drawing? Isn't it better to be practical?

She took the design drawing and explained it to Lu Shao, which perfectly solved the problem of smoke exhaust.

Lu Shao looked at the drawings. If he ignored her messy appearance, he seemed to have some feasibility: "then I'll go out in the afternoon and ask if anyone can do this. This can only be done in the bedroom, isn't it? "

Shi Xiaorui thinks that the cold time in northern China is too long every year, so she uses it in a large area. A few years ago, when she was in the county, she felt that the weather below zero was only 20 or 30 days, so it was really unnecessary to build all the rooms. Besides, I'm afraid the time was not enough, so she waved a small hand: "let's make it in the children's rooms first, and their children will not be frozen, We'll do it when we're done! "

Since we plan to take root in the capital, it's not a matter of one or two years. If we clean it up early, we'll put it into use early. We've accumulated a lot of time every year. Why suffer if we can enjoy it?

When Lu heard this, he asked curiously, "is this for my brother and me? What's this for? "

She just listened to it intermittently for a long time, but Shi Xiaorui always said something about burning and smoking, and she didn't understand it.

Shi Xiaorui said: "this is the hot Kang. After you make your room, you can sleep on it in winter. It's as warm as sleeping on a small stove. In this way, you won't be afraid of freezing in winter."

Children have a poor memory. Lu Xilan can't remember how she didn't want to get up in winter last year. She can't appreciate Shi Xiaorui's drawings. It's not fun to hear them, so she has no interest.

In the afternoon, Lu Shao went out and asked about it. Although he had never heard of what the huokang was, as long as he had money, someone said he could have a try.

Lu Shao chose a craftsman who had been building a house for 20 or 30 years. Together with his two apprentices, he directly brought in a lot of raw materials and came back with Lu Shao.

Autumn is also the off-season for these craftsmen. Basically, no one builds new houses. At most, they repair old houses, and they don't earn much money for their scattered work. According to the current price level, they can only make a living. Although Shi Xiaorui's Kang is not a new house, it's also a big business. Even if they work in cold weather, The craftsmen are also very happy.

Shi Xiaorui didn't expect that Lu Shao's efficiency was so high. She just collected half of the things in Lu Xiran's room, and he found someone to come back.

Two apprentices in their twenties, brought by the craftsman, saw Shi Xiaorui cleaning up. They immediately came forward to help, and soon made room for the hot Kang that Shi Xiaorui had planned.

Shi Xiaorui released her hand and introduced the shape and use of the Kang to the craftsmen.

It's the first time that craftsmen have been working for so many years that they heard that they can make this thing in a room. However, the technology requirements of the hot Kang are not so high. It mainly depends on the craftsmanship of the craftsmen.

The craftsman is not tall, but he is strong and strong. His face is not red and he looks good, which indicates that his daily life is also good. Judging from her medical experience, Shi Xiaorui is sure to do a good job, otherwise he will not be able to maintain a good living condition with less work, So he gave the task of Pan huokang to him: "master, you can do it. I just have a general idea. Let's make one today. When we're ready, we'll try it for a few days. If it's appropriate, we'll make at least three or four more. "

Hearing this, the craftsman was shocked. This Kang is not like a bed. It can be used directly after being made. This winter, it will cost more to burn charcoal than to burn a stove. Does this family not only use it for their own family, but also plan to make servants' rooms?

But some people pay, why not? The craftsman repeatedly agreed, because it would take a long time to build a chimney on the roof, and it would be finished in two or three days.

Shi Xiaorui thought that she had said all she knew, and there was no need to stay here to command blindly, so she called for Jinmiao to come here to greet her. If the craftsman was tired and wanted to drink water, she could just ask him to run.

Jin Miao came wearing a new jacket. Don't blame the exaggeration of his clothes, because in a few days, although he was fed by Shi Xiaorui's family, his face was a little bit bloody, and he couldn't make it up for a while. For fear that he would get sick, Xinmeng bought him a small jacket, which was a little bigger than himself and wrapped him tightly.

After explaining that Jin Miao is here and watching the craftsmen do their work, Shi Xiaorui thinks that she would rather sit in the front hospital and wait for some patients to come.

Shanxia also followed her. Shi Xiaorui lit a small brazier at her feet. They were on the brazier. Half of them were warm and sleepy.

Just as she was about to fall asleep, she suddenly heard the sound of footsteps approaching. Suddenly, she was inspired. She looked up and saw that Yu Qingzhan, who had not seen her for some time, was coming. She was still carrying a heavy burden.

Shi Xiaorui quickly meets up, and Shanxia takes over the burden of Yu Qingzhan.