The FB-2008-IP is completely insulated with mineral fiber board. This is a proven, hermetically sealed housing required no heater nor blower. Lightweight, even if it is double-walled, this sealed housing includes a sealed connector to run in the cable. The front cover, that opens and extends horizontally for total camera access, is locked by 2 screws. The window comes with a 3/16" polycarbonate. It can be installed on any wall, ceiling or corner with the appropriate mounting bracket.