The cheapest way to insulate the floor in a wooden house with his own hands, rustic method
I myself am a civil engineer himself as a foreman built log houses with a "warm" floors and he lived in them then... And I can tell you that the earth is the floor heating. Simple farmer solves the floor heating device ten times cheaper and better than usual.
As the insulation is applied pritrambovanny fine slag or sand (yes! sand) as a layer protects the floor from blowing - centimeter screed mortar... (Keep in mind that the sand or slag flow solution (shungizitu, small clay pellets) is large, it unnecessarily partially penetrate into the heater ...
As a heater used as sawdust soaked in lime milk (and I think the chip - it is necessary to look for) all necessary carefully ramming. Of course, higher consumption of sawn timber (insulation heavier) for such floors.
To begin, type in a search engine "how to build a country house Shepelev MA... and read. Great book. Do not hurry.. - for yourselves ...
Article Author: Vitaliy Kuznetsov
Here projects of houses with modern solutions insulating floors