- build a 10x10 room out in the open
- stick a heater in the corner, power it, and bump up the target temperature really high (say 300C)
- notice how the room temperature increases modestly, stabilising at maybe 20C above the outdoor temperature
- build walls and a vent to block off the heater into its own 1x1 room, with the vent connecting it to the main room
- notice how the temperature in the 1x1 room fluctuates wildly, while the temperature in the main room starts shooting up to something like 80C above the outdoor temperature
In the attached screenshot the outdoor temperature is -10C, but the temperature in the main room is stable at around 70C. You can use the same trick to get really high temperatures with a geyser (obviously the small room has to be slightly larger to fit it), or really low temperatures with a cooler (with a very low target temperature).
(first post, sorry if I did something wrong)
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