The technical content of coal stoves is almost infinitely close to zero. As long as you are a blacksmith, you can get it after reading it.

Li Hao naturally had no intention of keeping the secret. In his opinion, coal was his main goal. As for the more people used the furnace, the better. After all, the more people used it, the more coal could be sold.

Li Jing had never seen a coal stove before and was quite curious, but considering his face, the old man was reserved and did not go over and look carefully. He just sat far away and glanced at him from time to time.

Until a maid brought a few black stones from the outside yard and was about to throw them in, the old man couldn't help it and coughed dryly and reminded him: "Cough, that... charcoal cannot be burned, that thing is charcoal poison."

"Master, what you are talking about is the past. Now that you have this Zhenguan furnace, even if you burn charcoal, it's nothing." Hongfu smiled like a flower, and looked at Li Hao with a drooping eyebrows not far away: "You kid, why don't you tell your father quickly."

Zhenguan Furnace..., Li Hao had a toothache.

Speaking of which, Li Er was really obsessed with the word Zhenguan. His year name was Zhenguan, and he also made a coal stove.

Before Li Hao could explain, the old man frowned and came to the coal stove: "Zhenguan Furnace? Is this the name given by His Majesty?"

Li Hao nodded: "Yes, your Majesty personally gave you a name."

The old man was startled and said in surprise: "So you have been to the palace? Your Majesty hasn't punished you?"

Before this, Li Jing stubbornly believed that his son had come back secretly, and was thinking about how to explain this to His Majesty the Emperor, but unexpectedly, Li Hao not only did not come back secretly, but also had already joined the emperor.

This is a very good psychological quality.

Li Hao tilted his head and said proudly: "Of course not, because in this Zhenguan Furnace, the child not only has no experience with His Royal Highness the Prince, but also has achievements. It is just that the prince ran out secretly, so his merits and demerits are offset."

My demerits are worthy of merits and demerits? Li Jing could hardly believe his ears.

Such a big deal that the prince left the palace privately, was it solved so simply?

After Li Hao said that, he seemed to remember something suddenly and slapped his forehead: "Oh, by the way, dad, mom, I spent 500 knots in Xianyang and bought a Black Stone Mountain. You have already handed over the money to the Ministry of Revenue?"

It’s okay if you don’t talk about Black Stone Mountain. When Li Jing said Black Stone Mountain, he was angry and glared: “Hei Stone Mountain! You can still say it. I spent 500 knots to buy a seat... no..., hey, you said Black Stone Mountain? Isn’t it a useless barren mountain?"

Li Hao shouted: "Dad, are you mistaken? With the intelligence of your child, how could you buy a useless barren mountain and come back?"

The old man was stunned for a moment and looked at the burning Zhenguan Furnace. What was burning there was not the charcoal produced from Heishi Mountain.

"So... will our family not be short of burns in the future?"

"Dad, that's a mountain. How could our family burn it all?" Li Hao said helplessly in the face of the dull old man.

"What do you mean?" Li Jing asked after coming back to his senses.

Li Hao shook his head and expressed serious concern about the old man's IQ: "Dad, I kept the charcoal in that mountain for money. With the Zhenguan Furnace, the charcoal we picked at home will not have to worry about selling it."

Hey? Is this possible?

I just said how could my son be so stupid that he bought five hundred stags of money to buy a barren mountain?

The old man who was depressed by Li Ji these days was no longer depressed. He smiled and twisted his beard with his hands: "Well, okay, my son finally took a good step."

...

...

The residence of Empress Changsun in the palace.

The two Zhenguan stoves were burning red, and the great His Majesty Li Er was still sweating in his single clothes.

But even so, the palace servants continued to add charcoal to the furnace.

"Okay, it's great!" Under the service of Empress Changsun, Li Er wiped off the sweat beads on his forehead and looked at the Zhenguan Furnace with great emotion: "From now on, I, the people of the Tang Dynasty, will no longer have to worry about being poisoned by charcoal in winter. Guanyin Maid, Cheng Qian did a great thing this time."

"Yes, Your Majesty." Queen Changsun looked red, and a trace of sweat could be seen on her temples. She wiped the sweat from her head again for Li Er, and said with a smile: "With this Zhenguan Furnace, Wei Zheng and the others were afraid they couldn't say anything."

"Hmph, they dare! My prince does not care about his personal safety and seeks welfare for the people of the Tang Dynasty. How can he allow them to be maliciously slandered?" Li Er snorted coldly and said disdainfully.

Empress Changsun shook her head: "Your Majesty, I have no intention of blaming Wei Zheng and others. After all, they are just for the sake of Cheng Qian."

"I know all of these." Li Er said angrily: "But what Li Dejian said is right. What I lack most at the Tang Dynasty is actually not the censor with red mouths and white teeth, but a good official who can work hard and not care about personal gains and losses in a down-to-earth manner for the welfare of the people."

Empress Changsun wanted to laugh for no reason.

A few days ago, Li Dejian was a negative example of moral corruption in Li Er's mouth. As a result, the kid became a hot positive example again before he came back. Could this be the legendary impermanence of the world?

...

...

The next morning, because there was no morning court between the two days, Du Ruhui, Fang Xuanling, Changsun Wuji and other officials from the Secretariat were on duty.

As soon as I entered the yard of the Secretariat, several old guys immediately discovered some places that were different from the past.

There were a small pile of black stones piled up in a corner of the yard. A discerning person could tell at a glance that it was a carbonite that even a blacksmith could not use to smelter iron. There was an iron pipe in the window of the duty room in the middle of the yard at some point, and there were still wisps of smoke coming out of the pipe.

The little officials were gathering in groups at the door of the duty room, looking inside, not knowing what they were looking at.

"Cough!" Du Ruhui coughed gently: "What's going on? Why are you all gathered here for?"

"Du Pushe, Fang Pushe, Changsun Pushe." The minor officials were shocked and turned around and greeted the three of them one after another. Some of them replied: "Three Pushes, earlier, Your Majesty sent someone to send a Zhenguan furnace, saying that it was for the three of them to get warm."

Zhenguan Furnace? What is that?

The three masters of the Secretariat looked at each other, looked at each other, and then walked into the duty room together.

Because of the stove, the room was warm as spring. As soon as I entered, I felt the hot wind swelling.

This is completely different from the feeling of reborn charcoal pots in the past. Not only does it have a trace of smoke, the temperature is also higher than before.

With the insights of the three people, they immediately realized the advantages of the so-called Zhenguan Furnace.

Good things are definitely good things.

Judging from the material, the stove seems to be iron, which means that this thing should be able to be used for a long time.

Looking at the simple shape, it seems that any blacksmith can make it.

And the most important thing is that when this thing burned the black carbonite, there was no smoke...
Chapter completed!