Chamber Temperature

Winter here and some extrusion temp fiddling required for adhesion this will presumably change at it warms up for summer

It would be fairly easy to arrange a (roughly) constant temperature in the chamber with some low level of replacement air to avoid fume buildup (aquarium air pump?). The question is what temperature - points include:

plastic bits inside
insulation especially on the steppers
cooling of extruder

Thinking 50C or would that be stretching it.