When Chen Zhihua walked into the yard, he saw Qin Feng making briquettes in the yard with great interest.

Father-in-law Le wielded a shovel, mixed some loess into the charcoal in a corner of the yard, added some water, and stirred the charcoal into a ball of paste. The dignified head of the chamberlain, the ninth-level master, has a black path on his body and face.

Qin Feng carried the matchmaker machine, poked it into the coal pile, twisted it a few times, then lifted it up, walked to the small courtyard, put the iron can below flat on the ground, grabbed the handle with four fingers, and lifted the iron can with two thumbs while pressing down the other small handle on the handle, and a cylindrical honeycomb medium stood in the courtyard around the week.

There are already several rows of such briquettes standing in the yard in a neat and horizontal manner.

"Your Majesty is really Yaxing!" Chen Zhihua smiled and bowed.

"It's not Yaxing." Qin Feng picked up another one with the machine, and looked up at the sky, "It's rare that the sun has come out in the past two days, so I will hurry up and make a few, self-produced and self-sold!" Try the new stove by the way."

"Your Majesty, although this charcoal can be used for heating, it doesn't smell good when burned, and it can't be left in the house for a long time, and people may die after a long time." Chen Zhihua Dao.

"Well, I already know what you're talking about. This thing really can't be put in a soldier's tent, and in the winter, the tent is tightly covered, and it is indeed a problem to burn such a medium in the tent." Qin Feng nodded. Come here today, is there something going on ahead?"

"Yes." Chen Zhihua nodded.

"Okay, the head of the house said." Qin Feng threw the matchmaker aside, patted the coal ash on his hand, turned around and walked towards the house, and Chen Zhihua hurriedly followed.

As soon as I pushed the door open, a wave of heat hit my face, which was in stark contrast to the cold outside.

Chen Zhihua looked around the room and couldn't help but sigh softly, "Your Majesty, are you in this house?"

"See that?" Qin Feng smiled, walked to the corner of the house, lifted a pot of water from a stone table there, poured the steaming water into the basin, pulled the face towel, soaked it and wiped his hands and face, and looked at Chen Zhihua.

Chen Zhihua walked to the corner of the room and looked at the stone table here.

Where is this stone table, this is obviously a different coal stove.

At the bottom, the original round medium stove was made into a square, resting firmly on the ground, there was an extra platform on it, embedded with a thin stone slab, and the place where the kettle was placed in the middle was a little lower, slightly larger than the kettle, and it seemed that it could also put other things, and this time, it was the stove, and the probe looked, a few honeycomb coals were burning vigorously, and there were blue flames. On one side of the table, a tin tube went up from the stove, about two meters high, and then turned a corner, leaned out again, and drilled out of the wall.

Stretching out his hand to touch the tin tube, Qin Feng had already shouted: "Be careful, this thing is very hot."

Chen Zhihua's hand was frozen in the air, only an inch away from the iron cylinder, and he already felt a stream of heat emanating from the iron cylinder.

Then he stretched out his hand and pressed the thin slate in front of it, and the slate was also hot.

What surprised him the most was that although the house was burned with coal, there was no smell at all.

Qin Feng dragged two chairs, threw one to him, and sat on himself.

"How? Not bad, right?" Qin Feng said with a smile.

Chen Zhihua nodded again and again: "It's really good, it turns out that this thing can still be used like this."

"The last time there was an accident with the soldiers burning coal in your military tent, I found a few craftsmen to figure it out, and then I came up with this." Qin Feng said: "Burning coal does have a big smell, and it is also this smell that harms people, but if you export this smell, there will be no problem. The point is, after adding this tin tube, the whole house is warm, even if the four doors are closed, there will be no more harm."

Although it can't be used in the military tent, it can be used in the barracks, and ordinary families can also use it. A stove and a few briquettes can make the whole house warm, and if you burn wood, how much do you have to burn to have this effect!" Chen Zhihua nodded again and again: "I'll get one when I go back, the key is that it's convenient, and it won't make the house dusty everywhere, Your Majesty, even if you burn the best white charcoal, there is a lot of ash in the house."

"A small change can play a huge role, this thing, for our Ming Dynasty, is still a great help, our Ming, plus the Qin land that we are now occupying, the winter is long, the temperature is low, and the white charcoal is good, but this thing is expensive, and many people can't afford to burn it. Charcoal is cheap and anyone can afford to burn it. And on this side of Qindi, the further west you go, the more scarce the trees become, these days I have asked people to inquire, not to mention white charcoal, even firewood is not cheap, many Qin people, in winter, basically rely on boiling, survive to live, and if you can't survive, you will die."

Chen Zhihua nodded.

"In fact, there are a lot of charcoal in Qindi, but there was always an accident when he burned him before, so it was rarely used, and such a small improvement will not have this problem." Qin Feng nodded at the table in front of him. It's something that can be promoted, and it can promote the development of an industry."

"But those who chop wood and buy firewood will have no work!" Chen Zhihua said with a smile.

"After all, it's a minority, if they don't do this, they can do something else, besides, it's not easy to chop wood in such weather." Qin Feng said: "Don't leave at noon today, I'll invite you to dinner, just use this stove, let's shake the mutton. Le Gong, Le Gong."

Grandpa Le walked in from outside, his face was already black, "Your Majesty, the pile of coal has been prepared, and when the sun comes down today, it will probably be able to let them do it outside."

"Okay, let's eat shabu mutton at noon, you go and arrange it." Qin Feng said with a smile.

"Yes, Your Majesty, the minions will arrange it!" Father-in-law Le went happily.

At this time, the water on the stove was already boiling, Qin Feng took the tea set out, and was ready to make tea, Chen Zhihua hurriedly moved the things in front of him.

"Your Majesty, I'll come!"

Qin Feng smiled, "It's okay, you are from a famous family, you are good at these things, I can't experience the fun of this, but Xi'er often forces me to do it, saying that it is self-cultivation, I still like a big bowl of tea, refreshing."

"Each has its own fun." Chen Zhihua familiar began to make kung fu tea, "In the army, the minister likes a big bowl of tea, and when he returns home, he can enjoy the brewing gongfu tea slowly, making gongfu tea, the real fun is not in drinking, but in the process of brewing."

Qin Feng laughed, took the small cup from Chen Zhihua's hand, took a sip, savored it in his mouth for a while, and then raised his neck and drank it all, "Maybe that's the case, sometimes the process is more important than the result. Well, you said earlier that there was some change up ahead, what happened?"

"General Horse Monkey made an extraordinary move!" Chen Zhihua handed Qin Feng another cup, picked up a cup himself, and tasted it slowly.

"Did the little monkey do something in a line?" Hearing this news, Qin Feng was also quite happy.

"Yes, Your Majesty." After drinking the tea in the cup, Chen Zhihua sat up straight: "General Ma, he has cleared the cavalry of the Thunder Army around Shuanglian City, and completely cut off the grain channel from Yongdu to Shuanglian City, and now Shuanglian City can no longer support it."

"What is Qin Jun's reaction?" Qin Feng asked, "Yongdu will send someone out to open this passage again, or are you going to give up Shuanglian City?"

"I'm afraid Yong doesn't have the courage to send the Thunder Army again." A sneering smile appeared at the corner of Chen Zhihua's mouth: "The entire Yongdu is only 50,000 Thunder Army, there are about 5,000 horsemen swimming around these acropolis, which already accounts for one-tenth, this winter, we have been entangled with these people, 5,000 Thunder Army, the loss is almost the same, this area of Shuangfang City was originally the most, accounting for nearly 2,000 horses, but now, there is no one, the latest situation found by the spies is that the remaining more than 1,000 Thunder Army has withdrawn to Yongdu City."

"In other words, Yongdu has given up the acropolis outside!" QIN Fengdao.

"So to speak." Chen Zhihua nodded and said: "Shuanglian City is about to run out of food, Chen Shaowei estimates that Lian Shaowen, the Qin general who guards Shuanglian City, is afraid that he will be lonely."

"Alone!" Qin Feng raised his eyebrows: "Is he going to withdraw to Yongdu City?" It's a dead end."

"That's true!" Chen Zhihua said: "Lian Shaowen is a good general, Shuanglian City is more than fifty miles away from Yongdu, and now these more than fifty miles are full of our cavalry, he has no chance at all. But they were only ten miles away from Chen Shaowei's camp."

"Lian Shaowen wants to attack Chen Shaowei's camp? And then rob the supplies in Chen Shaowei's camp?" Qin Feng felt a little unbelievable.

"Trapping and defending is a dead end, and withdrawing to Yongdu is also a dead end, although it is also difficult to attack Chen Shaowei's camp, it is not without a chance." Chen Zhihua said with a smile: "If they fail, they will die, but if they succeed, they will be able to hold on for a while, and at the same time, they can greatly increase the morale of the Qin army. Even Shaowen drove out all the dependents in the city when the food and supplies in Shuanglian City were in an emergency, and he really did such a thing."

"This is Chen Shaowei's judgment?" Qin Feng asked.

"Yes, so Chen Shaowei is ready, waiting for Lian Shaowen to throw himself into the net, and at the same time he also sent a letter, asking me to order the cavalry of the horse monkey and the cavalry of the wind chasing battalion to help the new third battalion cut off the connection between the other acropolis and the Shuanglian City, Chen Shaowei estimates that the other Acropolis may support Shuanglian. Because everybody knows what the Twin Cities do for the entire Acropolis defense system."

"Well, that's kind of interesting." Qin Feng smiled: "Such a bustle, I have to go and see it. If we can sweep all the acropolis outside Yongdu this winter, then we will save a lot of trouble next year."

"This winter, if we can push the troops to Yongdu for dozens of miles, I believe Yongdu will be even more nervous." Chen Zhihua added.

"Very good, then use the side of the Shuanglian City as an introduction to launch a battle and clear the outer acropolis!" Qin Feng knocked on the table, "When you take the Acropolis, I should also go back, and when the general attack is carried out in Ming Spring, I will come back again."