I appear to have completely broken all concept of conservation of energy:
Using only the single cooler in the top picture and 5 smart outlet vents i can heat this entire complex to 70 F at -16 F external temperature with one smart outlet vent per room, and the freezer (blue room, lower ducts) set to -20 F, though it only maintains around -10 F that's expected.
The outlet vents in the small room with the cooler are set to maintain 88 F rather than 70 F, to give the rest of the base some temperature to work with.
Using this mod list:
Using only the single cooler in the top picture and 5 smart outlet vents i can heat this entire complex to 70 F at -16 F external temperature with one smart outlet vent per room, and the freezer (blue room, lower ducts) set to -20 F, though it only maintains around -10 F that's expected.
The outlet vents in the small room with the cooler are set to maintain 88 F rather than 70 F, to give the rest of the base some temperature to work with.
Using this mod list: