Fire Resistant 3D Print Enclosure

This is a quick run through of the 3D print enclosure I built for my Prusa MK3.
In short, the sides of the enclosure are hardie backer (cement board); $11 a sheet from Home depot and took 2.5 sheets. The frame is 2x2, which was about $2 per 8 ft section. I think I used like 5 or 6 of those? The glass is just 1/8 inch regular glass $20. The vents I used can be found here:

The fan/hose adapter I used is this one: www.thingiverse.com/thing:2297772

See the following for my designs (info for the included STL's)
https://www.thingiverse.com/thing:2790847
https://www.thingiverse.com/thing:2790836

The temperature controller $6: amazon.com/gp/product/B075NF2QJ4/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

The seal is just a dense foam weather stripping

The light is an LED strip I had laying around

The switch is a 2 pole switch for the light (on off) and a 3 pole switch for the fan (Manual on - off - temp controller on) - Switches are cheap, $0.50 to $1 each

The smoke alar