Wow - I love the concept of the vortex, but I'd have to run it past the wife. I'm guessing it'd need to be dismantled once the winter's over - any chance it's possible to put this together without it being mortared into place, then dismantled after the burning season?
Other ideas coming to mind --
1. A small
greenhouse on the south facing wall of the house through some sliding doors, with a
RMH in it. Kind of passive
solar +
RMH
2. A RMH that's removable in a little used part of my house that I could vent out a window (is that OK?)
3. #1, with the external RMH, but run the exhaust under the house floor, kind of like Erica's in floor heater
video
I think the thing I'm most interested in is the removable RMH in the house that vents out a window. Possible?
OK, my excitement is building again. thanks Max.