Plot: We arrive to find Rich in the basement, where the forced air unit for first-floor heating and cooling hangs; the main source of first-floor heat, however, will be radiant floor heat, made more effective with aluminum mounting plates and a joist-bay foil insulation that reflects heat back up into the floor above. Out front, Roger Cook shows us the options he had in edging the landscape's walkways - he chosen steel, which is long-lasting, flexible, and nearly invisible