With the help of the Yizhou Army, hundreds of people worked at the same time, and the construction of the public kitchen was extremely fast. It was successfully completed in just a few days.

The communal kitchen, occupying the entire square, was so large it could accommodate hundreds of people at once. To keep the heat in, the masons had pre-dug a fire channel, connecting it to the rows of stoves in the cafeteria.

With these fire outlets, once you start making a fire to cook, the hot air will flow into the wall through the fire outlets, raising the temperature of the entire room.

Under the square is the underground palace of the fort.

The bricklayer of the Wei Ting family had also participated in the construction of the mansion in the fortress and was very familiar with the overall structure. Just in case, the bricklayer took people to the underground palace and added more than a dozen load-bearing pillars to strengthen it.

Therefore, all the fire channels in the public kitchen are half built and half dug.

Later, the two bricklayers took the problem of summer heat into consideration, so all the fire channel openings were movable. After winter is over, the openings can be closed so that the heat will not enter the wall along the fire channel, and the canteen will be warm in winter and cool in summer.

Wei Ji's health has improved in the past few days. Wei Xiyin is concerned about the situation of the clan and occasionally comes out for a walk when she has time.

When she saw the long streams of fire in the public kitchen, she suddenly had an idea.

As soon as the cafeteria was completed, Wei Xiyin immediately called in the bricklayers and asked them to bring their men to half-dig and half-build a few fire channels in the blacksmith shop.

The two bricklayers hesitated and said, "Girl, there are shops on both sides of the blacksmith shop. There is not much point in digging a fire channel."

If the girl wanted to keep the people in the mansion warm, she would have to dig a very long fire channel. Although the furnace in the blacksmith shop was hot, it was impossible to transfer the heat that far.

Wei Xiyin was talking to Wei Ting. Upon hearing this, she turned around and said, "You guys try digging it out first."

The two bricklayers had no choice but to obey orders. They spent two days digging the fire dragon, and the long fire channel extended to the entire shop. The bricklayers also built the chimney.

However, when he was preparing to build the fire crossing, he was stopped by the girl.

Wei Xiyin said, "Just point all the fire openings downwards."

The bricklayer was very knowledgeable and immediately realized what was happening. He asked in surprise, "Is the girl trying to introduce heat into the underground palace?"

Wei Xiyin nodded and said, "That's right. Add a few more fire vents in the cafeteria so that the hot air can flow into the underground palace."

My grandfather is still ill and the temperature in the room is too low, so I had to light the charcoal brazier a few days ago.

She repeatedly reminded everyone to open the windows when burning charcoal, but as the wind and snow poured into the house, the temperature in the house dropped instead of rising.

Wei Xiyin's first thought was naturally to build an earthen kang, but there were more than a thousand people in the dock now, and it was impossible to build only one old house. There was no time left.

Furthermore, heating the kang requires a large amount of wood and charcoal, and the amount stored in the clan is not enough for such extravagance.

In addition, last night in Zuoxiang, someone fell asleep and forgot to get up in the middle of the night to clear the snow from the roof. In the second half of the night, the house collapsed under the weight of the snow, waking up many people.

Chang Ying took his guards and dug the man out. Fortunately, the man was only slightly injured, but the house was no longer habitable.

Wei Xiyin had already noticed that as the temperature dropped, the houses in the fortress were no longer suitable for living because they had no earthen kangs or floor heating.

The location of the blacksmith shop and the newly built public kitchen is right below the underground palace.

After seeing the floor heating in the public kitchen, she immediately thought of the most convenient way to heat the room that would benefit everyone.

They could directly build a fire channel to bring the heat from the two places into the underground palace. If it was not enough, they could add a few more boilers to light fires.

This way, you don’t have to spend time and energy on taking any heating measures, nor do you have to get up in the middle of the night every day and endure the cold to go out and clear the snow on the roof.

Just move everyone into the underground palace.

The people in Mingjing Hall soon learned the news, and Wei Mingze sighed, "Wu Niang is really smart."

Now everyone is suffering from the cold every day, and the uncles and aunts in Mingjingtang are so cold that they can hardly hold a pen.

Wu Niang's method saves both effort and time, and benefits everyone. Not only that, the wood they had prepared before can fully sustain the entire winter.

Wei Mingze immediately informed the elders of the three clans about this matter.

After hearing this, Wei Zhongxun praised repeatedly, "Then let's do as Wu Niang said."

After asking for instructions, the people from Mingjingtang immediately took action.

Since they had decided to move into the underground palace for the winter, and considering that the temperature would continue to drop and it would be inconvenient to enter the public kitchen, the uncles and aunts discussed it and decided to open a small door directly in the public kitchen to connect to the underground palace.

In this way, people living in the underground palace can go directly to the public kitchen for their meals without having to go out and endure the wind and snow.

A underground palace door was also opened inside the blacksmith shop to facilitate the entry and exit of the blacksmith and the men who went to feed the wild boars and pheasants every day.

When the men received the news, they were afraid that their precious livestock would be frozen to death, so they hurried back from the camp and asked the bricklayer to extend a fire channel to the two livestock pens.

Everything was ready, and after a few days, the temperature outside continued to drop, and even frost began to appear in the house.

Mingjingtang officially issued a notice, informing everyone to move into the underground palace.

At the same time, the public kitchen was officially put into use, and the clan would no longer distribute public grain.

The people in the old house moved into the underground palace earlier than others.

There are many passages in the underground palace, which lead to all directions. To prevent people from walking around and disturbing the clan leader's rest, only the third family (Wei Zhongxun and grandson Wei Li) are allowed to use the passage where they live.

The corridor of the passage is just below the blacksmith shop. There are two fire openings connected at the top of this side of the passage, and it is very warm inside.

Uncle Wu and his servants had already cleaned up the house, and everything was in place, except that the visibility was a little dim.

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