"Your Majesty, let me take you to visit my biogas facilities." Since it is for this, let's take a tour with you. Even if Li Er doesn't come, Yang Heng will also invite him to visit. In any case, this thing needs to be promoted.

The biogas equipment started from the second west side room. The first thing that appeared in front of everyone was a biogas lamp on the corridor. Because this was the corridor and needed to illuminate a long distance, the lamp head was five torches on it, which made it look brighter, just like litting five candles.

"This is the biogas lamp, it's not very bright, but why do you light it during the day?" Li Er raised the first question, "Your Majesty, the amount of gas generated by this biogas is very sufficient, and a place needs to be lit every day. I just put the place that needs to be ignited here. In addition, there is mainly the general duty room of biogas equipment care personnel in this place, and the places where the people who are responsible for biogas cleaning and other work live."

For safety reasons, Yang Heng set up such a place, and only had a few more servants. But in this way, the safe use of biogas will be ensured without any trouble. Let’s talk about that lamp. The staff on duty only need to observe the length of the flame regularly every day to know the pressure in the biogas tank. If the flame is too high, it needs to reduce the pressure and ignite a few more lamps. If the flame is too low, it must be extinguished in an appropriate amount.

Another thing is that next to this duty room is a hot water room, which is supplied from morning to night. It can provide water for many people to drink and bathe. Yang Heng asked the blacksmith to create many thin iron pots. This iron pot can not only boil water and carry water, which makes transportation much more convenient. The servants in each room only need to carry the pot to carry water, and some insulation materials are also wrapped outside the pot, which can also ensure that the hot water has a certain insulation time.

"Tutorial room, take me in and have a look." Li Er said without moving, and naturally he wanted the guards to go in and check it out first. Then Yang Heng led the way in front and entered the so-called duty room. "Your Majesty, Your Majesty." Several servants knelt there and shivered, which scared the guards, "All up, I have something to ask you." "Yes, Your Majesty." The servants stood up tremblingly, which really embarrassed Yang Heng. Isn't it just Li Er? He can't eat you, he just wants to eat you. It's not your turn in a short time. Yang Heng thought of it hatefully, and naturally he knew that this was the result of the scare yelling of the guards.

"What are you sticking on the wall?" "Your Majesty, this is the duty code and the biogas maintenance and use regulations." Yang Heng interrupted. Obviously, these servants couldn't speak anymore. At this time, they were not only afraid, but also excited. They met with the number one person in the world and talked to the number one person in the world. They were so happy, so they trembled in fear and turned into trembling excitedly. If Yang Heng knew what they were thinking, everyone would kick them in the atmosphere. You would have a little chance. You could not grow a piece of meat when you saw you, and you could not grow a piece of meat even if you didn't see you. By the way, you might become thinner. You were afraid and excited. If you sweat too much, you could also lose weight.

"Tell me, can you understand all these?" "Yes, these little guys have taught us and asked us to recite them. Little guys, or Manager Lian, occasionally come to check us. If there is any error, you will be beaten at least a few whips, and the heaviest may be beaten to death." The subordinates said it very easily. If such a job is not done well, you deserve to be beaten to death.

"Yang Heng, tell me, why is this doing this?" "Safety, Your Majesty, since this biogas can be ignited, there must be something else. If it is not taken care of, it will be a big deal if it has any problems. Just like what happened in the legendary swamp, it will also happen here. So whoever wants to do this thing must have such a set of rules." Yang Heng originally said that the explosion was explosion, but the gunpowder had not been developed yet. Li Er would not understand the explosion. He used firecrackers as samples, what were firecrackers? Bamboos were thrown into the brazier to burn, and then made some bursting sounds. What demonstration effect could it have?

"Where is this?" Li Er came out of the duty room and then entered the water boiling room next to it. The servants in the room stood on one side. There was no way. There was boiling water everywhere. At this time, Yang Heng and the guards stood beside Li Er. Li Er's legs were too light. Before anyone could react, he came in. "Water boiling room, Your Majesty, let's go out and talk. Look here, there is nothing else except the kettle," Yang Heng begged Li Er. This place is not fun to see, boiling water is too dangerous. If you accidentally kick a pot of water over, it would be amazing if Li Er was scalded or Li Er was frightened.

"Okay, okay, I'll go out," as he spoke, he looked at the kettles wearing clothes a few more times, "Boy, what good thing is this, I won't tell me." Seeing something that Li Er didn't know, he thought Yang Heng was confidential. There was nothing in your palace, and could he still like these kettles wearing clothes?

After a quick look, Li Er did not see how the water was boiled, but saw the kettles all over the floor and the hot air in the room. However, this was enough, it was convenient to use hot water. This was Li Er's only idea, and he had not seen anything like fireworks, and he had no smell. I thought that for the most advanced coal ball stove at this time, this coal ball stove was also made by Yang Heng. The biogas boiling water was the cleanest, without any smell, nor smoke, and even the boiling water was not slow. In short, Li Er saw the good side.

"Your Majesty, that's the toilet, so don't go in." There are two toilets in a row. There are two places used by the main house, and they are naturally divided into men and women. One men's toilet and the other women's toilet are designed according to the toilets of later generations. There are two toilets in the women's toilet and four toilets in the men's toilet. This is because most of the guests coming are men, and the directions of entering the toilet are different. There are basically no situations where a man and a woman meet outside. That's it. On the outer wall of the toilet, there are still two words for men and women, and even the patterns of men and women are painted on it. Generally, you won't admit your mistake. That's it. If there are servants taking care of each other, there will be no embarrassing things.

On the other side is the toilets of the people, which are also divided into men and women, and there is no difference from the toilets in front. It is just that the statement is different. Similarly, Yang Heng set up several more toilets to avoid trouble.

"Your Majesty, it's dirty inside, it's very dirty, it's better not to go in." Li Er was curious about everything, and he didn't want to let go of a toilet. When he entered the men's toilet, the female relatives behind him naturally stopped, and then they were taken to the women's toilet on the other side by the little girl.

If the toilet is not very dirty, the cement-built brick wall was smoothed with cement, and a layer of white lime was added on it. If it is whiter than Li Er's palace, it would be impossible, but it is much better than the ordinary Xiaofu family. But to be honest, there are not many buildings that can compare with it. The ground is also cement floor, and even a waterway in the toilet pit, which will regularly release water to wash away the feces below. This is what Yang Heng said is dirty.

"Yang Heng, tell me, is this what you mean by cement?" Li Er asked while stepping on the ground. Because he rubbed his feet a few times, he didn't rub the ground into soil, but instead rubbed some wood chips on the soles of the wooden shoes. You know, the ground is made of stubble to seep water downwards.

"Yes, Your Majesty, this is made of cement, and it is still strong. I am guilty. I have not reported to you in time. These are all delays." Yang Heng had to apologize quickly. If Changsun had not gotten angry this time, Yang Heng would not have reported it. This matter is too cumbersome, and Yang Heng would naturally forget some things. (To be continued, please search for Astronomy, novels are better and faster!
Chapter completed!