best scroll or semi?

[cadwaladr]

got to put some kit on a cold store i am building,its running at -25c or will be,scroll,s seem to be cheaper than semi,s any advice running cost,s etc.

[chemi-cool]

Dafoss Meneurop runs with no problems down to -35C.
use an electric defrost and compressor will last for years.

At these low temp, I would go to pistons and not scroll.