Overheating in an under-the-mountain base

[BladeofSharpness]

I have some big troubles evacuating the heat in my base, under a mountain. I have set some 'heatsink' room for that, it works somehow but this is costly in steel and electricity. One-tile blind room, with a limestone wall, in the wall an air conditioner that pump heat and reject it into the blind room. It maintains room temperature, and the heatsink raise to 150 °C.

Is it good? How to makes it work better? Is heat coming back through the heated wall (partially) into the temperate room?

[jie]

just create a single shaft to the outside. build walls around it but keep it unroofed. second you can use passive coolers as well. as air conditioner will stop working well in the long run if they blow in a closed room

[Boogey]

Store your meat and veggies in the heatsink room and you get really nice gumbo :).

[climbingeastofwinter]

Not entirely certain if it's still the case, but I believe overhead mountain tiles actually bleed heat out of rooms down to a point. Where is all of your heat coming from? Do you have a massive freezer you're trying to maintain or something?

[Jhonny G]

Originally posted by BladeofSharpness:

One-tile blind room, with a limestone wall, in the wall an air conditioner that pump heat and reject it into the blind room. It maintains room temperature, and the heatsink raise to 150 °C.

Is it good? How to makes it work better? Is heat coming back through the heated wall (partially) into the temperate room?

A one title square is not enough room for an air conditioner to disperse the heat it accumulates. The heat will start to build up and then be forced back through the air-con, resulting in a reverse effect.

A rule of thumb is to always have 2 free 'exhaust' titles behind every air-con. So if you for example got 2 side by side make sure to 4 open titles behind them.

[TotallyAverageGamer]

You can have air cons pump heat in to hallways as long as they are both long enough and vented to the outside

[Pump]

It's because stone insulates heat. I had the same problem wondering why my freezer wasnt freezing. Typically, when I build into mountains, I leave a 1x1 "trench" around one side for venting heat.

[BladeofSharpness]

Nothing is vented to the outside, there is only one entrance, heavily secured. I live in a very dangerous world... So yes, heat build up. I need to invest more resources into heat dissipation!

[p3st|cIdE]

I find that exploiting synergy works best; don't let heat "go to waste", use it to heat rooms in the winter. Stoves and smelters generate heat as well as cooler exhaust and heaters do. Use vents.
All this must be coordinated. Same with campfires and to lesser extent, torches. In a pinch, fueling passive coolers next to or in same room with these heating items will keep them from building up temperature to sweaty levels. Usually I would vent out into the combat zone; if they get through there and try to break in through a vent or cooler, they've already beaten my main defense and probably won anyway. If you vent a cooler exhaust closet outside through a barrier of several vents, it will take them some time to break through anyway.

[p3st|cIdE]

One more tip: doors may be Held Open, which increases air circulation between rooms, which is mighty helpful early on when you can't afford to build complex venting.