Hello.

After several days at -30c, all my ventilation holes are frozen.

Despite the temperature warming up the holes take time to redo.

So I made frozen cubes of Coarse Salt to help and it's going great I can throw the cubes to the right place.

https://ibb.co/nBN6Vb5

https://ibb.co/h7PBfcM

https://ibb.co/d0nH0bk
A+