Overhead mountain caves and temperatures

[Vats]

I've read many times that temperatures inside caves are supposed to be more or less stable. Allegedly, it may be used to escape from heat waves.

How are they supposed to be used for this purpose?

[KalkiKrosah]

Find a cave or make one. Wall it off and make a door. The temperature should be cooler in hotter biomes and warmer in colder ones.

As far as the reasoning behind it, the thicker roofing gives better insulation.

[Vats]

Outdoors: 32C
Closed cave: 38C

A few hours later:
Outdoors: 22C
Closed cave: 34C

Another few hours later:
Outdoors: 26C
Closed cave 36C

In Vanilla 1.0. This makes no sense at all.

[Henry of Skalitz]

Originally posted by Vats:

Outdoors: 32C
Closed cave: 38C

A few hours later:
Outdoors: 22C
Closed cave: 34C

Another few hours later:
Outdoors: 26C
Closed cave 36C

In Vanilla 1.0. This makes no sense at all.

Wood lets heat come through but stone walls keep the heat inside. Boom.

[Vats]

Originally posted by Santa Fish:

Wood lets heat come through but stone walls keep the heat inside. Boom.

I've built two tunnels, one with a steel door and one with a limestone door. Both had exactly the same temperatures. As far as I know, materials have never impacted insulation.

The tunnel was kept 1 to 3 degrees cooler, but this is most likely the result of the separation between room, not due to some magical cooling effect in tunnels or mountains.

[AlexMBrennan]

not due to some magical cooling effect in tunnels or mountains

Since Rimworld lacks Z levels you are required to work out that rooms underneath a think mountain roof are dug deeper underground (why else would they be immune to mortar fire?).

It should be common knowledge that temperature varies with depth (cf root cellar, geothermal heat pump).

[Vats]

The heat wave warning message says to build coolers or hide deep in a mountain. I just can't make it work, if it was meant to work somehow.

I can't see other effect other than adding airlocks under overhead mountains, which just prevent heat from dissipating instead of activelly equalizing to a cool temperature, as one would expect from a deep cave.

[Legion]

It's something on your end. Using Farenheit (me, personally), inside mountains are always 20 below the current outside temp.

[Vats]

Originally posted by Nomadic:

It's something on your end. Using Farenheit (me, personally), inside mountains are always 20 below the current outside temp.

Which version of the game?

[Legion]

Both that I still actively play. B18 and 1.0.

[Vats]

Originally posted by Nomadic:

Both that I still actively play. B18 and 1.0.

If you find the time, could you please test the 1.0 version using god mode?

[Legion]

Originally posted by Vats:

Originally posted by Nomadic:

Both that I still actively play. B18 and 1.0.

If you find the time, could you please test the 1.0 version using god mode?

I could, yes. I'm in the middle of a modded play as of now, but when I get it done (meaning when I'm done with the run tonight, not the entire playthrough), I'll take a look into it for you- vanilla only. From there, it should be easy to figure out the issue. I will say that in my modded run and being so close to the "outside" of the mountain, there's a 15 degree difference of the inside being cooler. Inside is 93 while outside is 108. Aprimay.

[Legion]

https://steamuserimages-a.akamaihd.net/ugc/939463413756086078/04118A07C54564785DC289B2B4CD38A57B889CA1/

https://steamuserimages-a.akamaihd.net/ugc/939463413756086224/45549986BC413012468B736C76CB6209ABC20DC1/


This is still my modded run. The first image is inside the mountain and the second is outside.

[elipod]

Are there heat sources insde room? Campfires, torches, stoves, fueled generators, sunlamps?

[Jacbo]

Aside from temperature and mortar resistance benefits, mountain bases are also really great because raiders/mechanoids don't attack natural stone/ore. If you build your entire base within a mountain, you can force raiders/mechanoids to filter in wherever you want. Especially useful if you wanna use the strategy where you make a super long tunnel so raiders lose their mind and attack each other so you don't have to fight them. Don't think there's a way to make dealing with mechanoids easier.

[AlP]

Originally posted by Santa Fish:

Wood lets heat come through but stone walls keep the heat inside. Boom.

There's no difference between materials, all walls keep the same heat inside.