Hi - I've lurked here plenty (and learned a lot), but now that I'm building a house around a wood stove I need to ask some questions. The question: The builder seemed reluctant to put the foam board insulation on the outside of the foundation and instead wants to put 3" Thermax foam board on the inside. Does anyone have experience with this? I worry about mold/condensation between the foam and the concrete. House/stove details: 1400 sq ft ranch with walk-out front. House will have 2x8 walls with blow-in icynene insulation. Lotsa insulation in the attic. Chimney roughly in the center of the house with the stairwell nearby. Jotul F55 Carrabassett for a stove. I'm not even close to starting the house yet and I bought the stove already!