Design, Consulting, Team Leading and Training

New! Schedule a viewing for the Soldier ID Passive House Retrofit Project

Open House January 12-14 10 am to 5 pm       Map to  House   

Thanks to all participants.  We had a huge turnout and all was well received.

If you missed the open house, appointments for a home tour are available on a case by case basis.  Call 208.764.2820 to arrange a date and time.

The home is also still available for school field trips.

Press Release

Date: 01/02/12
Location: 025E 200N, Fairfield, Idaho
Contact: The ZEPHER Group
Phone: (208)-764-2820

Idaho’s very first Passive House Open for Technical Viewing January 12-14

Fairfield, Idaho-Victor Weber of the ZEPHER Group announced today the dates of January 12-14 for a technical open house of the Passive House retrofit project located in the old township of Soldier, ID.

The open house will demonstrate the properties of the 1910 farmhouse, which permit it to use 90% less heating energy, and up to 70% less total energy. The guts of its super-insulated, airtight shell will be exposed, allowing attendees to see the framing, insulation and air sealing techniques employed. The home’s mechanical systems will be operational, including its triple pane Krypton filled windows, a 93% efficient heat recovery ventilation system, and its solar thermal heat storage system designed to provide the majority of the heat the structure does not generate on its own. Viewers will experience the superior indoor air quality wrought by the ventilation system’s constant stream of fresh air, and will notice the even thermal comfort throughout the structure from the moment they enter.

This open house will benefit architects, builders, designers and the general public desiring to learn more about the future of building science-the Passive House Standard, the most rigorous building energy standard in the world. The open house will run each day from 10 am to 5 pm. Find details at or call 208 764-2820. The ZEPHER Group pleased to offer scheduled field trips for school groups. Interested parties should call to arrange a date and time.

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