Very cool entry!
It feels like an escape room sort of thing, which I like. The heat mechanic was interesting, but it felt like getting hotter was just better. There was some swaying of the camera, but not enough to where it actually impeded me from running around or made me want to get colder. There was a machine in a room that I didn't understand, next to an ice cube - maybe some more tutorialization here would be good? I placed a can of gas in it but I couldn't figure out what went next, since I tried putting in the ice cube in the cube shaped hole but nothing happened.
In terms of the theme, I feel like it was very well implemented in both gameplay and concept. Congrats!
Aesthetically, I think the game works pretty well. At times I felt a bit lost because some of the rooms look very similar, but the level design is well done enough that you can often tell where you are in relation to everything else.
In terms of sound, I think the music is cool, but it definitely could use some variation. The loop feels a bit short so you hear the music way too often, in my opinion. You could give it a bit more room to breathe!
Cool entry, keep up the good work!