Su Hao had already guessed the thoughts of these women before, and when he saw his mother throwing him a beam of apologetic and expectant eyes, he smiled slightly, pulled Yang Gendi aside, and whispered: "Mom, you can just watch and do this, and I will call whoever you say will make a stove for whomever you want." ”

Yang Gendi said: "Hao'er, I know you want to Wen Shu, this kind of thing shouldn't have been asked for you to do." However, they are all neighbors, and after your father passed away, these people in the village took good care of our family, so I can't push it off. ”

"Why push it off?" Su Hao said, "Since they helped us, then I happened to help them once and repay the favors owed to others, isn't it good?" ”

"Alas, it's all your mother's mouth." Yang Gendi was full of joy when she got her son's promise, but she still blamed herself fiercely, and then she went back to the pile of women, chattered with them again, and then came back and said to Su Hao: "I told them, you first help your Uncle Jin Wang's house to make a stove, then Tiangui's family, and then ......."

"I can't remember so much, Mom, you are responsible for remembering the order, I can cook for almost half a day, two a day, can you arrange it?" Su Hao handed over all the power to his mother, since he wanted to repay the favor, then it would be better for his mother to make the decision, and everyone would naturally miss his mother more in the future.

"Is it too late this afternoon?" Jin Wang's daughter-in-law heard that Su Hao had agreed, so she hurriedly stepped forward and asked.

"Just in time." Su Hao said, "Aunt Jin Wang, you go home first, remove the things that have nothing to do with the kitchen, and I'll go to the dirt slope at the east end of the village to bring some clay, and we can start work immediately." ”

"Just ask Uncle Jin Wang to do it." Jin Wang's daughter-in-law said happily, "I'll go and ask him to come back to help now." ”

Su Hao went back to the room to change into a short dress for work, took the tools, led by Yang Gendi, and walked towards Su Jinwang's house, as soon as he entered the door, he was welcomed by the three generations of Su Jinwang's family.

"Oh, Xiucailang is here, it's really bothering you. I said that Xiu Cailang is very busy, and this little thing can't trouble Xiu Cailang, Changgen has to say that he wants to ask you to help. No way, there are a lot of people in my family, and the firewood is not enough to burn, I heard that the stove changed by Xiucailang is particularly firewood-saving, you see ......" Su Jinwang, who looked honest and honest, rubbed his hands uneasily, and said to Su Hao.

"Uncle Jin Wang, look at what you said. Usually you help my family a lot, I happened to learn a little bit of the craft of repairing the stove, what does it matter to help you repair the stove. Su Hao said politely.

"Look at it, Xiucailang just can talk." Su Jinwang smiled, "Xiucailang, you don't have to do it, just tell me how to do it, I'll do it." I just heard Changgen's mother say, she watched your house for a long time, but she didn't see any difference between your stove and mine, I said, Xiucailang is the Wenqu star in the sky, and the stove he made must be different from others, if she can understand a woman, it will be strange. ”

Su Hao said with a smile: "Uncle Jin Wang, don't praise me, there is nothing complicated about repairing the stove, but there are a few places that are a bit particular, and I may have to do it myself, if Uncle Jin Wang is free, it would be good if he could help me." ”

"Oh...... I know, I know. Where I can do it, you say. Where I can't do it, I promise not to move. Su Jinwang looked a little suddenly enlightened, nodded again and again.

Su Hao was stunned by Su Jinwang's words, and it took a while to understand, and quickly explained: "Uncle Jinwang, I didn't mean to hide anything from you......

Su Jinwang said: "No, no, cooking is a particular thing, I definitely can't learn it, just give Xiucailang a hand and make some effort." ”

Su Hao had the heart to tell Su Jinwang that in fact, this kind of firewood saving stove is not complicated, but there are just a few key tricks to master, and he can teach them as much as he can. But when I thought about it, I suddenly felt that it was more valuable to keep this technology appropriately secret. The transformation of firewood stoves is not much effort, but the effect is very good, and it is the most suitable for human favors. If others do the same, won't you be unable to be a human being?

In the previous life, the Ministry of Agriculture promoted the provincial firewood stove throughout the country, hoping that farmers would be able to master this technology by themselves, so in terms of relevant technical specifications, the design was very simple and easy to understand. Su Hao believes that if he tells these norms to the villagers, they will be able to grasp them quickly.

At the beginning, Su Hao did have the idea of promoting this technology, but Su Jinwang's words just now made him suddenly change his mind. In those days, people with crafts have always covered their crafts tightly, and even when they are passed on to future generations, they are "passed on to children but not daughters". I have the skills of transforming the firewood stove in my own hands, and I don't teach it to other unrelated people, which is also understandable to everyone.

When we are born between heaven and earth, we must have some unique abilities, so that we can have the foundation of our lives. Now this Su Hao can only read a few dead books, and he has no power to tie the chicken, what can he rely on to survive is still a suspense. In this case, if you accidentally find that you have a technology that others can value, you should naturally find a way to make it most effective.

The truth of saving firewood stove is very simple, but if no one explains it, it is difficult for others to see the mystery. Concepts such as thermal efficiency, thermal radiation, full combustion, and fluid dynamics were simply unknown in the Ming Dynasty, let alone in the Ming Dynasty. Without these tools of theoretical analysis, if you look at it with the naked eye, you will be a layman who will not be able to grasp its true doorway.

In fact, the women who went to Su Hao's house to visit the provincial firewood stove just now also pondered it more or less, but they couldn't see the difference between Su Hao's stove and the stove they were using, which was why they needed to ask Su Hao to help renovate.

With Su Jinwang by his side to help, Su Hao's workload is indeed much less, and things such as soil mining and mud are all handed over to Su Jinwang to do. Su Jinwang really did as he promised, he would do whatever Su Hao told him to do, and in addition, he would never look at things that should not be seen, so as not to misunderstand that he wanted to plagiarize Su Hao's craftsmanship.

Su Hao took the pot of Su Jinwang's house off the stove, chiseled off some of the original clay in the furnace with a chisel, and adjusted the position of the smoke exhaust outlet. This is an important technical part of the firewood stove, and it is necessary to ensure that the fresh air coming in from the stove can fully flow in the furnace to ensure that the oxygen supply required for fuel is sufficient. If others take apart the renovated stove, they can see the changes inside, but it is difficult to understand the purpose of the changes. Therefore, if no one explains, the stove made by others in this way will be much less efficient.

After changing the hearth, the next thing is to thicken the furnace wall and make the stove smaller, these things can be done by Su Jinwang. The last step was to raise the chimney, and Su Hao said a size, which was achieved by Su Jinwang climbing to the roof.

After all the work was done, Su Hao asked Su Jinwang's daughter to take some straw to the hearth to burn so that the clay could dry quickly, while he sat in the hall of Su Jinwang's house and waited.

When Su Hao was almost done, Jin Wang's daughter-in-law was already busy running to the neighbor's house to borrow the fire to cook two bowls of rock sugar eggs, and at this time it happened to be brought over, a bowl for Su Hao and a bowl for Yang Gendi.

"Auntie, they're all neighbors, what are you cooking soup for?" Yang Gendi looked at the rock candy eggs and smiled, but she still had to blame her mouth with fake blame. Boiled eggs with rock sugar are called boiled soup in the countryside, which is the etiquette of receiving distinguished guests.

At that time, every household was not rich in food, and generally could only raise one or two chickens, and eggs were a rarity. Although Su Hao enjoys the treatment of the pearl of the palm at home, it is not easy to eat an egg. In the morning, he took two eggs to make egg custard and gave it to the whole family, which made Yang Gendi feel very distressed.

Jin Wang's daughter-in-law said: "Hao cub is a talented man, I am embarrassed to do things for my family like this." His uncle couldn't help much, so I definitely wanted to cook a bowl of soup. ”

Yang Gendi actually wished that her son could eat this bowl of eggs, and when she heard this, she got off the donkey and said: "Hao cub is sweating so much, just cook him a bowl of soup, and I haven't contributed, so this bowl of soup will be shared with the children." ”

Yang Gendi excused herself like this, and Jin Wang's daughter-in-law naturally insisted on it again and again. In the end, Su Hao ate two of the three eggs in his bowl and left one. This is also the rule, leaving one means saying that you can't eat anymore, which means that the owner has done too much. If you eat all three eggs, doesn't it mean that the host is not enthusiastic enough and makes too little to do?

Yang Gendi was polite again and again, and finally took a bowl, picked an egg from the bowl in front of him and ate it, leaving two. Jin Wang's daughter-in-law shouted, and several children in the family rushed out screaming happily and ate the three eggs left by Su Hao's mother and son.

After tossing and turning like this for a while, the clay in the stove had dried up. Su Hao repaired it again in the past and announced that it was done. Jin Wang's daughter-in-law personally went to light a fire and cook a pot of pig food, and found that this new stove was really more powerful, extremely firewood-saving, and there was no smoke, so the family complimented Su Hao firmly, and even took Yang Gendi to gain some compliments such as "I will definitely be able to enjoy happiness in the future".

Having a stove that saves half of the firewood and grass is a big problem for the farmer. Su Jinwang also knew that just boiling three eggs to show his gratitude was not enough. When sending Su Hao's mother and son out of the house, he patted his chest and said to Yang Gendi that another day he would pick 20 loads of water for Su Hao's family, first water Su Hao's field, and then water his own field.