Fireplace.
I just made a fireplace inside my underground home.
But it's not only joy and cozy.
Every time i hear the sparkling noise from the fire, i alway think something in my home is burning. even though i know there aren't anything near it. And i've always got to check. Lol.
This is mostly because i've had a few bad moments with fireplaces. my whole treehouse burned down once. after that i've got respect for it.
I guess i'll get used to it (^_^)