Yun Yi is calculating who he is planning, this is a later story.

What makes Yun Yi curious now is what choice will King Mu Zhao Qi make after receiving the gift he gave.

Zhao Qi had two armies under his command, one for Baoping and the other for Fengning. The two armies were stationed in Hejian Prefecture, which was most closely interfered with the Song and Liao dynasties, and there was a place called Tianjin.

Tianjin has emerged since ancient times due to grain transportation. In the middle and late Tang Dynasty, it gradually became a water and land terminal for southern grain and silk transportation. To this day, the Song and Liao dynasties have also regarded Tianjin as an important trading port.

The north of Tianjin is owned by the Zhejin Prefecture of the Liao Kingdom, and is controlled by the Liao people. The south is owned by the Hejian Prefecture of the Song Dynasty. There are two systems in one place, and conflicts are breeding here almost every day.

If ordinary people see it, they are afraid that they will avoid this place. However, Yun Yi is different from ordinary people and he is very interested in Tianjin.

Prince Mu's Mansion.

Wei Hong and Yang Zhi and others were waiting for the summons at the door.

Behind the two, more than a dozen servants were carrying a large box in pairs, and several guards from Prince Mu's mansion were checking the items in the box.

After confirming that there was no danger, the head guard nodded to the manager at the door.

Seeing this, the manager apologized to Wei Hong and Yang Zhi: "The rules of the royal family are complicated and have made you wait for a long time. Please come here."

Wei Hong bowed and replied, looked at Yang Zhi, and walked into the palace.

Soon, under the leadership of the manager, the group came to a garden in the palace.

When I reached the gate of the yard, I could vaguely hear the whimpering laughter from the yard.

The manager signaled Wei Hong and the others to wait and walk into the yard by themselves.

After a moment, the laughter came to an abrupt end. The manager walked out and signaled the two to follow him and not to look around.

When he saw King Mu Zhao Qi, he was sitting upright in an octagonal pavilion, with brand new gold-rimmed glasses on him, and he looked gentle and elegant.

"Haha, you are Wei Hong. I often hear about your deeds. Even people in my house say you are a capable person."

Wei Hong bowed and said modestly: "Your Highness is a mistake. The villain follows the instructions of the lady in everything he does. The one who is truly wise is my lady."

Zhao Qi smiled and said, "Well, Miss Ni is indeed a capable person. Unfortunately, she gave birth to a daughter. Otherwise, I would have come to recruit her in person... I will give you a seat."

"Thank you!" After Wei Hong sat down, Zhao Quan continued, "The housekeeper said you brought something here, but what kind of strange thing is it?"

Wei Hong bowed: "Your Highness is like a god. The villain did bring an interesting thing to the door. My Qingyun Club promised Your Highness that this thing can be said to have brought an immeasurable income."

"oh?"

Zhao Quan was stunned at first, and then said in surprise and joy: "But the prescription that requires patent fees, Shopkeeper Su couldn't explain it clearly yesterday, and I didn't care much. Since you sent it in person, are you afraid that this thing is extraordinary?"

Wei Hong was no longer humble and said with his head raised: "Your Highness once saw it, you will know that this thing can help the world and the people. It is a good thing that benefits the country and the people..."

Under Zhao Qi's urging, more than a dozen servants moved the box in an orderly manner, and at the same time, they carefully moved the things in the box to the open space.

Zhao Quan was stunned to see it, and signaled Wei Hong to say to him quickly.

Wei Hong bowed and said, "Your Highness, please see, this object is a coal ball stove, which is a strange thing to keep warm in winter. Of course, in addition to keeping cold, it has many practical features, such as boiling water, cooking, and smelting..."

Zhao Qi frowned slightly and walked around the coal ball stove with suspicion.

Overall, it is a square object with a palm-sized round hole on the left and a sink-like vessel on the right.

Wei Hong continued: "This thing needs to be used with coal balls. In order to better demonstrate the wonderful uses of coal ball stoves, I hope that Your Highness will allow the open flame of a small life to be a demonstration."

Zhao Qi held up his glasses, nodded slightly and said, "It's accurate, demonstrate to me immediately."

Wei Hong bowed and looked at Yang Zhi.

Yang Zhi immediately took out a porcelain bottle from his pocket, took out a few honeycomb coals from the box beside him, poured the liquid from the porcelain bottle on the honeycomb coal, and then took out a fire fold to ignite it.

With a shout, the fire started to burn. The old eunuch behind Zhao Qi rushed forward, fearing that the fire would hurt Zhao Qi.

Fortunately, the fire was just ignited, and then the fire gradually became smaller, and the honeycomb coals were ignited quickly, and gradually a smell of charcoal was filled with the air.

Zhao Quan frowned slightly. He knew about the charcoal, but the smoke produced by this thing was poisonous. The palace used charcoal to keep warm in winter, and it must be charcoal made of best pine wood.

"Please look at your highness. Just put honeycomb coal into the furnace, and then you can place various cooking utensils above, such as iron pots, casseroles, copper pots... and the sink next to it can be filled with water. After the water is heated, it can be left to use when needed."

Wei Hong made a simple operation and roughly demonstrated several uses of the coal briquette furnace.

Zhao Qi, the old eunuch, and several officials from the royal palace stood aside and whispered, staring at his movements without blinking.

At this time, a manager frowned and said, "If it's just for this purpose, this thing is not novel, it's just a smaller stove."

The managers next to him also nodded and agreed. They are not novices in life. Several of them have even worked in the kitchen since childhood and can't understand the utensils that make fires and cook.

Zhao Quan also looked suspicious. Although he agreed with the managers' judgment in his heart, because of the glasses, he subconsciously felt that this coal ball stove was not simple.

Wei Hong was not in a hurry. He put a large iron pot filled with water on the top of the briquette stove, turned his head to ask the manager who spoke, "How long do you think it will take to boil this pot of water?"

The manager was stunned for a moment, and then based on his experience, he responded: "There is a lot of water, so you only need two sticks of incense."

Wei Hong smiled slightly and then asked, "If you use dry firewood, how much firewood is needed?"

"This..." The manager hesitated for a while before responding: "If you want two incense sticks to boil the pot of water, the fire must be strong. Considering this, at least seven or eight kilograms of firewood should be needed."

Wei Hong smiled without saying a word and looked at the other managers, "What do you think?"

Several managers looked at each other and after a while, they all agreed. Without seven or eight kilograms of firewood, they could not burn the pot of water at all for two incense sticks.

Getting their answer, Wei Hong turned around, raised his right foot and kicked the air inlet under the coal ball stove, and asked Yang Zhi to take a small blower to blow air into the air inlet.

Hu, Hu, Hu...

As Yang Zhi pressed faster and faster, the red light under the iron pot quickly became hot at a speed visible to the naked eye.

Zhao Qi and others who were standing aside felt the heat waves, and what was even more amazing was that water droplets began to condense at the bottom of the iron pot. Several managers opened their eyes wide and looked incredible.
Chapter completed!