Looking at Zhu Yuanzhang's surprised eyes, Hu Changan smiled slightly and said calmly: "Your Majesty, the reason why you didn't feel warm when burning so much charcoal in the palace before is because the charcoal also dissipates heat while generating heat."
"The palace is large and well ventilated. The charcoal only gives off a little bit of heat, but it is all blown away by the cold wind, so naturally people won't feel much heat."
"The greenhouse I built was built with a sandwich wall and the stove was moved into the wall."
"On the outside of the wall, I specially used more insulating materials so that the heat will not escape."
"On the inside, I chose materials that can dissipate heat, so that the heat contained in the sandwich wall can be well diffused into the room."
"If your Majesty doesn't believe it, you can touch this wall."
After Zhu Yuanzhang heard this, he touched it out of curiosity.
Sure enough, just as Hu Changan said, the outer surface of the wall was cold, but the inner surface of the wall was hot and somewhat scalding.
When Zhu Yuanzhang saw this, he couldn't help but be very happy.
This thing is really good!
With this greenhouse, he will no longer have to suffer from the cold in winter!
And the cost of this greenhouse is not much.
If a greenhouse is used, the palace will definitely save a lot of money this winter!
The more Zhu Yuanzhang looked at the conservatory, the more he liked it. He couldn't help but said to Zhu Biao: "Biao'er, I saw that the conservatory is really good. Do you want to build a conservatory in your East Palace?"
"My son was just about to say this." After hearing this, Zhu Biao replied with a smile, "There is still enough time. I think we can build this kind of greenhouse in the entire Forbidden City."
"Anyway, there is still a lot of open space in the Forbidden City, and building a few greenhouses is enough."
When Zhu Yuanzhang saw this, he waved his hand and happily agreed with Zhu Biao's idea.
Zhu Yuanzhang was still willing to pay this little money.
It can not only improve the quality of life, but also save a lot of heating bills in the future, so why not do it.
After Zhu Yuanzhang gave the order, Zhu Biao smiled and said to Zhu Yuanzhang: "Father, are there any surprises waiting for you in this room?"
"Oh, there is a surprise? I wonder what the surprise is?" Zhu Yuanzhang looked at Zhu Biao with interest.
Zhu Biao smiled and pushed Hu Changan out: "Father, there are some things here that I don't understand very well. I'll let Hu Aiqing introduce them to you."
"Okay, no problem." Zhu Yuanzhang also followed the good path.
He was already satisfied enough with this greenhouse.
Zhu Yuanzhang was very curious, what kind of surprises would be waiting for him next?
When Hu Changan saw this, he also smiled slightly and said to Zhu Yuanzhang: "Your Majesty, let me introduce this barbecue and hot pot to you."
In the greenhouse, Hu Changan specially prepared barbecue and hot pot for Zhu Yuanzhang.
In this way, Zhu Yuanzhang could enjoy delicious food without leaving home in the cold winter.
Hu Changan took Zhu Yuanzhang and Zhu Biao to a table, pointed at the table and said to Zhu Yuanzhang: "Your Majesty, this is the barbecue table I have prepared for you. You can bake all kinds of dried fruits on it."
What Hu Changan pointed out to Zhu Yuanzhang was a strange-shaped round platform.
Different from the ordinary round platform, the center of this round platform was hollowed out and a barbed wire fence was erected.
Zhu Yuanzhang looked at this strange-shaped round platform and was a little confused.
I don’t know how to use this thing?
Seemingly sensing Zhu Yuanzhang's doubts, Hu Changan smiled slightly, opened the wire mesh in the center of the round platform, put a few pieces of smokeless charcoal inside, lit it and then closed the lid again.
"Your Majesty, this is actually a simple oven. Just put charcoal in it and you can bake things on it."
Zhu Yuanzhang studied the structure of the stove for a while and nodded slightly.
Although Zhu Yuanzhang could not study this thing by himself, Zhu Yuanzhang could still understand the basic structure.
It's nothing more than moving the stove inside the round table.
However, Zhu Yuanzhang raised his own doubts: "Hu Aiqing, if you burn it like this, won't you worry about a fire?"
No wonder Zhu Yuanzhang paid so much attention to fire.
In ancient times, because buildings were all made of wood, a fire would be a serious matter.
Various houses were not burned one by one, but in patches.
The loss here is absolutely unspeakable.
Therefore, in the palace, you often see some heavy large water tanks placed on both sides of the road.
These water tanks were all used to prevent fires in the palace.
Whenever a fire breaks out, palace attendants can scoop water from the large vat on the roadside to extinguish the fire, which is very convenient.
Seeing Hu Changan put the stove in the room, Zhu Yuanzhang's first worry was fire.
After hearing this, Hu Changan also smiled slightly and said: "Your Majesty, there is no need to worry. I am using charcoal. There is no open flame when burning charcoal, so there will never be sparks flying when burning."
"Besides, Your Majesty, you see, my furnace is built very high, and the inner walls of the furnace are made of fine iron."
"Even if there are some small sparks, it is impossible for these sparks to splash over the stove and onto the table."
"Besides, my house is equipped with defensive measures!"
As Hu Changan spoke, he opened an inconspicuous small jar next to him and said: "This is filled with emergency water. Once a fire splashes, just hold the jar and pour it to quickly extinguish the fire."
Of course, Hu Changan put a jar of water here not just to put out the fire.
After all, the greenhouse is relatively dry, and people may become uncomfortable if they stay there for a long time.
Putting a tank of water here can also play a role in artificial humidification.
When Zhu Yuanzhang saw this, he also sighed.
I didn't expect that Hu Changan would even consider such a thing.
This Hu Changan is really a talent!
While Hu Changan and Zhu Yuanzhang were talking, the stove was almost burning.
Seeing that the stove was almost hot, Hu Changan took out some corn and peanuts from the basket on the side and put them on the stove.
These corns and peanuts were also redeemed by Hu Changan from the system.
Although corn and peanuts have become something everyone knows in modern times, during the Hongwu period, these things had not yet been introduced to the Central Plains.
It was not until the end of the Ming Dynasty that corn and peanuts would bloom and sprout on the land of China.
Even during the Qianlong period of the Qing Dynasty, peanuts were a precious dish at royal banquets.
When Zhu Yuanzhang saw Hu Changan taking out so many strange things from the basket, Monk Zhanger couldn't help but be confused.
Didn't he say he wanted to bake something to eat? Why did Hu Changan turn around and take out such a strange thing?
These things look so weird, are they really edible?