Comment by sneak

I’m doing precisely that, but I have simulated the same in the meantime by taking a normal residential house and completely blacking out and sealing the windows in the largest upstairs room. It’s excellent. When I turn off the lights it can be pitch black and 68F at noon in the middle of the summer in the Mojave.

I had to cover the windows in all the adjacent rooms to make this work, but it does.