Question - Mines

My question is, if there's any penalty in setting up residence underground in a mine? As I'm very new to the smelting operation I'm sure there are things about a mine that I should know.
I noticed that there *seem* to be unlimited space looking at the minimap (if you mine a bit), and that I could carry heavy objects down into a mine. Theoretically I could build a series of corridor and rooms down there. A mine also strike me as very defensible and easy to 3x wall above ground, it seems to make an excellent item vault.
Beyond not being able to build a stove, are there any downside to living down in a mine? I'll be testing item decay in a bit too and see if I can keep a butcher room
.
I noticed that there *seem* to be unlimited space looking at the minimap (if you mine a bit), and that I could carry heavy objects down into a mine. Theoretically I could build a series of corridor and rooms down there. A mine also strike me as very defensible and easy to 3x wall above ground, it seems to make an excellent item vault.
Beyond not being able to build a stove, are there any downside to living down in a mine? I'll be testing item decay in a bit too and see if I can keep a butcher room
