[W]ith its unique construction—there are never any air leaks. - Steve Baer

We have associated the thirty-one zone star throughout with the icosahedron and... dodecahedron. It also fits perfectly with the three smaller regular polyhedra. The , the and the fit inside the icosahedron and... dodecahedron. Their vertices touch a vertex, an edge midpoint or a face midpoint of the larger figure. This regular match... positions the smaller figure so that regular patterns on the large figure project inwards as regular patterns on the small figure. In each case either five or ten small figures fit at once within the larger...

If you... remove the electric clothes dryer and install a clothesline the consumption of electricity drops slightly, but there is no credit given anywhere on the charts and graphs to solar energy which is now drying clothes.

SUMMARY
1) It is best to have a way to prevent both heat gain and heat loss.
2) Be skeptical of mechanical seals.
3) Do not use single glazing unless it is a mild climate or the movable insulation is controlled by a reliable automatic means.
4) Do not install anything you cannot fix.
5) Look for two uses for one material.
6) Break the area to be insulated into pieces so that an air leak in one area will be isolated.
7) Always use strong, durable materials outside.