Just place insulation around it mine was screwed to timber accross trusses so air will circulate underneath .........I woukdnt get too excited about the venterlation .
I always recermend the platinum ive done them on most systems but I think I'm going to look for display thst can be inset with a touch screen next time .......il have to see what's out there .
I was at one today took a stat with me and potentiometer expecting to swap them . When I dropped the panel down the stat wasn't even plugged into the pcb .
The fan was replaced recently it looks like the basically hadn't plugged it back in when working on it .
£36 for that stat if replaced