ZEH

Ventilation equipment in the nature of metal ventilating ducts; geothermal ventilation equipment, namely, metal pipes located below ground surface

Renewable energy equipment, namely, windmills and geothermal equipment, namely, geothermal pumps

Renewable energy equipment, namely, solar heat collection panels

Residential fiberglass insulation, sprayed building insulation, and rigid building insulation; wall system consisting of insulated concrete blocks; ventilation equipment in the nature of flexible plastic pipes; geothermal ventilation equipment, namely, flexible non-metal pipes located below ground surface

Concrete walls for building and concrete floors, ventilation equipment in the nature of non-metal ventilating ducts; geothermal ventilation equipment, namely, rigid non-metal pipes located below ground surface

Construction of energy efficient homes and buildings