The women heard it in a fog, but after a while, the kang became hot, and Li Hui ordered someone to lay the kang well, so that the women came up.

"Wow! It's hot! Yu Zhang clapped his little hand and said.

"It's so warm, it's really hot..."Changle was also surprised, and even lay down and rolled around comfortably.

Li Xueyan and eldest grandson Lan Yun's beautiful eyes also flashed with surprise, which seemed to them to be a very magical thing.

Only Cheng Shengnan was puzzled: "Husband, where does the smoke go?" ”

Li Hui nodded, worthy of being talented in this aspect of organs, he smiled mysteriously: "Shengnan, it has something to do with the structure of this fire kang, why do you say the fire kang is hot?" ”

"Why is it hot... Obviously, the firewood was not put into the ondol, but the entire ondol could be heated..."Cheng Shengnan thought about it, and suddenly wondered: "Is it because of the smoke?" ”

"That's right, the smoke is hot." Li Hui smiled.

Cheng Shengnan suddenly put on his shoes and ran outside, and saw that the chimney above the house was constantly smoking, and suddenly realized that although she didn't know the specific scientific truth, she understood what Li Hui said.

Cheng Shengnan ran back and said a little excitedly: "Why didn't I think of it?" ”

Li Hui smiled and didn't speak, silly girl, if you can think of it, it's really a demon... The crystallization of thousands of years of working people from ancient times to the present day is not something I came up with from your husband...

"It's just a pity that it can't be used in the army, and it will be cold when marching and fighting..."Cheng Shengnan suddenly thought that his father, his brother, and Qin Ruying had all gone to war...

"But aren't there silk and silk clothes in winter?" Changle rolled into Li Hui's arms, raised his little head and wondered.

"Silly girl, not everyone can have silk quilts and silk clothes!" Li Hui rubbed Changle's little head, Changle grew up in the palace, and since he was a child, how can he understand that the people and soldiers have no silk to wear?

The royal family and nobles would put goose down or duck down in silk quilts and silk clothes, which naturally kept warm, but in this era without cotton, how precious was that? Ordinary people and the army can only keep out the cold by wearing a few more layers of clothing, and the effect of this cold protection is not very good.

Li Hui thought about it, cotton was only introduced in the Song Dynasty, and it would be nice if cotton could be available now

It's a pity that the cotton is produced in Mexico...

"Ding! A change in the host's environment is detected, and the salted fish system is activated! ”

"Ding! The quest is generated, and the quest is released: The Winter Life of Salted Fish! ”

"What if you don't prepare for the harsh winter? Salted fish does not allow the cold to invade! Please promote the ondol to the host! ”

"Quest Reward: The Mall is open, and the host can buy anything in the Mall!"

"Does the host accept it? No reward, no penalty for refusal. ”

Listening to the system prompt in his ear, the corner of Li Hui's mouth hooked up a smile, the system is worthy of being a system, what do you want...

As for the promotion of the ondol, it is very simple, you only need to...

"Okay, Li Hui, you kid is really happy!" A majestic voice rang out.

When Li Hui heard this voice, he couldn't help laughing, he really gave a pillow when he was sleepy, and a bed when he was tired!

"I've seen my father!"

The women hurriedly got up and sat upright and saluted His Majesty Li Er.

"What is your majesty doing?" Li Hui didn't get up, he was still lying down, his voice was full of laughter.

"What's the point? What are you doing? His Majesty Li Er couldn't help but stare at him, this kid is getting more and more disgraceful to me, and he didn't even get up, and he was really startled when he just came in, Li Hui and the women...

"Sleep! It's comfortable to sleep on the ondol! Changle was smiling.

"Father also came to give it a try, it's very warm!" Yu Zhang also smiled at His Majesty Li Er.

His Majesty Li Er was shocked, Huokang? Li Hui once told him that the wonder of the fire kang has been made now?

Li Hui closed his eyes and recuperated, lying gracefully, completely ignoring His Majesty Li Er.

Looking at Li Hui's comfortable appearance, His Majesty Li Er was puzzled, so he also sat on the fire kang.

It doesn't matter on this, it's refreshing...

His Majesty Li Er showed a satisfied expression, and immediately glared at Li Hui: "Huo Kang is Huo Kang, with so many daughters, what do you want to do?" ”

Although they are all Li Hui's women, Li Hui is even if they are together... It's not wrong, ahem, but they're all so young...

Li Hui was still too lazy to take care of him, and turned over.

His Majesty Li Er's eyes suddenly widened.

Li Xueyan hurriedly smiled and said, "Father, my husband took us to test the effect of this fire kang!" ”

His Majesty Li Er breathed a sigh of relief and was startled...

"Or else? What does Your Majesty think we are going to do? At this time, Li Hui's faint voice sounded, and there seemed to be a trace of inexplicable tone in his voice.

His Majesty Li Er's old face flushed, knowing that he wanted to be crooked, he scratched his head in a daze, coughed and then leaned over to Li Hui's side and said, "Li Hui, look at this fire kang..."

"What's wrong with this ondol?" Li Hui turned over again.

"I look at the kang is very easy to use..."His Majesty Li Er said with a smile, and came to Li Hui again.

Li Hui smiled and said, "Well, I also think this kang is very easy to use, we are in winter."

The mansion is warm, Your Majesty don't worry, it won't freeze your daughters. ”

If you don't say it directly, I'll hang you, Li Hui hooked a smile on the corner of his mouth.

His Majesty Li Er smiled bitterly, and finally said: "I also want to build my palace, and the people, if it is vigorously promoted, it will definitely benefit the people!" ”

Li Hui smiled: "That's so tiring, I refuse!" Unless..."

The corners of His Majesty Li Er's mouth twitched, this kid definitely did it on purpose, but he still smiled and said, "Unless what?" ”

"Unless Your Majesty promises me one condition." Li Hui said lightly.

"On what terms?" His Majesty Li Er's face twitched, this kid really ...

"Your Majesty, do you remember the four words I wrote?" Li Hui sat up and looked at His Majesty Li Er.

His Majesty Li Er was stunned, this kid was suddenly so serious, four words......

He said in a deep voice: "Big country heavy industry? ”

"That's right." Li Hui nodded.

"You want to elevate the status of craftsmen?" His Majesty Li Er also frowned, this is not an easy matter.

"Compared with the status of craftsmen, Your Majesty has seen that the horseshoe, the improved saber, the Zhenguan plow, the glass, the mirror, and even this fire kang are all from the hands of craftsmen!" Li Hui looked directly at His Majesty Li Er.

His Majesty Li Er fell into deep thought, and all the women were silent, they knew that they should not interject on such an occasion.

"Although agriculture is fundamental, if the role of craftsmen is played well, the efficiency of farming can be greatly improved! For example, Zhenguan plough is a good example! Li Hui raised his head: "The status of a craftsman should not be so low!" The status of craftsmen has been improved, ensuring that Your Majesty has a strong Tang Dynasty! ”