Home of Dr. John Eckfeldt and Nancy Schultz, Isabella, Minn. Ms. Schultz did a factory tour prior to buying the Mueller windows, shipped from Germany.
A view into the main dining area.
The main dining room, with barrel roof and 30-inch heavy timber framing.
The high-end kitchen makes no concessions to style.
Hot water radiators are part of the intricate passive heating system.
Solar heat collector vacuum tubes on the garage roof.
An array of tubes and controllers in the basement hints at the technology behind the passive heat system.
Dr. John Eckfeldt and Nancy Schultz pose beside the plaque confirming the home's LEED platinum status from the U.S. Green Building Council.