Zarquan

I believe you would actually vent the steel out of the pipes and then pump it again, using insulated insulation pipes to get the steel where it needed to be and using airflow tiles to contain it (as it doesn't conduct heat with the steel). So I was wrong about only having to do it once. Or you could make the pipe out of insulation and wait for a very very very long time. Isn't everything an exploit? I would argue that the metal refinery is a more egregious exploit than the pump one honestly.

Not sure why you think molten metal is easier than magma for this. The difficulty is getting the magma or liquid metal in to pipes once. If you build a pump in magma or a pool of molten metal, it will function for a while before it breaks or melts, putting the liquid in to the pipes. Once it is in the pipes, you can cycle it through the refinery then to what is being heated then to the refinery over and over. This approach is easy for everything up to steel, as a steel pump will melt in molten steel. Additionally, you can pump without it being in contact with the liquid.

You can use liquid metals as coolant in metal refineries. I would start by using magma as a coolant to get molten iron, then use molten iron to get molten steel. Molten steel can get up to 3800 C, which is hot enough to melt tungsten. I'm not sure about using rockets. It might work, but I haven't tried it.

You can melt abyssalite and insulation. Both of those melt in to tungsten for some reason.

One thing that is common in volcanoes is that they don't erupt very often, even when they are active. If the magma is draining away then, right after they erupt, you can clean up the magma with a couple obsidian temp shift plates (cooling off the magma right under the volcano) and you will almost certainly be able to complete the analysis before it erupts again.

You could play in windowed mode, which lets you resize it.

I made some modifications later in the post and if you want to build it, I recommend picking a later version. The idea is that the slicksters can only be in one tile. If you don't give them the ability to move, then they don't appear to cause as much lag. If you make the room they are in 12 tiles, then they won't be confined and can lay eggs. The eggs fall in to a pneumatic door, which means they are out of the room, so they do not get the cramped debuff and can lay eggs. The slickster larvae can swim up the crude oil and petroleum (assuming the tiles have enough mass), so they join the other slicksters when they hatch. This means that not only do they consume CO2, but they also are self sustaining and produce a ton of meat. I have one off these in my base and now I have over a million kcals of barbecue stored up. Just make sure that the size of the room is 12 tiles so that they can lay eggs.

Are you sure the safeties you have are necessary? Specifically turning off the oil and closing the doors? What happens if you keep the doors open and never turn off the crude oil? Because these sour gas boilers are water positive, there is no downside to burning all the natural gas you can get.

Also, ban certain hats from certain doors. That way, I could not give hats to dupes who don't have exosuit training yet and say no hat, no exosuit.

This isn't right. By default, the save occurs when they wake up, not when downtime begins.

I believe the issue with your build is that your second path for your first shutoff is being blocked. This leads to the flow stopping, which means that the shutoff filter is holding a packet of below 14 C water that isn't flowing away. If the next packet is warmer than 14 C, then that packet triggers the sensor and the cold packet is allowed through. To fix this, you need to make sure that the water from the aquatuner has lower priority than the water from the shut off valve. To do this, put a bridge one tile below the output of the aquatuner going down and remove the pipe next to the bridge input (to the left).

The petroleum is the middle thing and the crude oil is the outer things. Keep in mind though that if the petroleum is outside of pipes, you can do the counterflow by running the crude oil in pipes through the petroleum. Here's a picture of a counterflow heat exchanger in game (on the right). In this picture, the crude oil comes from the bottom and flows upwards to the hot-plate. The petroleum then flows down the airflow tiles, cooling the petroleum and heating the crude oil. There are more pictures of this setup here. One thing to be careful about is the crude oil breaking out of the pipes and damaging them, as that can cause problems.

You don't have to. Untended slicksters are a great source of food and they deal with the CO2 and give you precious petroleum. I currently have over 500 in my one tile slickster pen.

For anyone who doesn't know, naphtha is really easy to get if you have an aquatuner, I keep my chambers under my cooling turbine at above 200 C (using steel), so whenever I need naphtha, I just build a few plastic tiles connected to it underneath. They melt and I mop it up. You can use any aquatuner to do this, but chances are you do not need to do it that often, so it is better to use your aquatuner to delete heat. EDIT: I should note that I keep my turbine in a vacuum cooled by a skim of crude oil.

They only exhale when they breathe. If you have a small lip keeping CO2 above the water, they will never break the lock by breathing.