I realize that I may have missed something, but wouldn't it have been a better idea to have put the insulation on the outside of the box, rather than on the inside?
It looks to me that the spaces between the 2x4s would be a good place for the insulation. This would have resulted in a considerable increase in internal water volume and therefore heat storage.
-AC
__________________
I'm not an HVAC technician. In fact, I'm barely even a hacker...
|