Quote Originally Posted by RockSolid
First of all, I don't think that particular container you have will work. There are gaps that will allow your BP to escape. As for the rheostat, I have seen people use a credenza dimmer to run the flexwatt. I'll post a link as soon as I can find one. For an enclosure try the strerilites with lids. Here's a photo of what I use.

It's a 41 qt sterilite, but that will probably be too big for your BP. Try a 32 qt.
I've examined a lot of containers and this particular one in detail. It looks perfect. The surface of the container is perfectly flat, with no crevices making it easier to clean. The top seals perfectly! There is no way the snake can pry its way out of it. It also looks quite safe for the snake .. no edges.

I'm worried about the plastic warping with heat.