Look at the top radiator hose. Look at where it connects to on the engine block. Thats the housing. Themostat is inside. The screw on top of it is the bleeder screw.
Dumb questions get dumb answers BUT its always good to give a correct response if know so to help the OP
Then the intelligence of this forum isnt too crash hot. I rarely venture out of VR - VS. And i see the same questions and problems over and over again. Id hate to see the others.
I've used the advanced search function (top right) numerous times with great results, and try to go there first if I have a query.