Hi all, i'm interested in an external housing for my hubitat. I have an outdoors pool house with a bbq area that i have a couple of lights automated on. Its too far from my house for zwave to reach it so i put a second hub there. Over the summer i left the hub on the counter but as winter is coming i stashed it under the cover of my grill (with the cables coming out of it.
Almost any weatherproof enclosure like this should be sufficient.
However, based on personal experience, the C4 and C5 hubs really don't like heat. I had one in a closet that got up to 80f ambient or so, and had constant hub lockups.
If you can get a Zwave or Zigbee powered device up in an outdoor enclosure that can "see" the hub and acts as a repeater, that may be a better approach.