>>2009857There is 1" polyiso on every large panel surface, floor and ceiling, behind the wood. And thinsulate inside of the support beams. However, insulation doesn't really accomplish much without a heat source. I think people overthink the insulation, and think they need to cover every single little surface with it. Mine is good enough to hold some heat from the cabin for 5 or so hours.
>>2009905Just take note of how many times you use the sink during a regular day. Or better yet, try not using a sink for a day and see how that is. Having running water is something we generally take for granted.