anyone built an outdoor mining cabinet? I want to put some S1 or S3 units outdoors for the winter, but am afraid that wayward snow/slush/debris on my balcony (its an apartment) might get sucked in or otherwise contact the equipment.

The solution in my mind is a 4-walled box (bottom,top,sides) with 1-2 fabric filters over the inlet/exhaust sides of the box (mostly the inlet). Main concerns are the inlet fabric icing over (if heat removal is too effective) or being the target of pigeon intrusion (yeah these guys are a messy problem - and a huge source of dust and debris on the balcony)