Deep Winter Greenhouse

RELATED DISTINCT: Living the Country Life radio/podcast segment on University of Minnesota deep winter greenhouses (insulated, south-glazed, underground rock-bed heat storage)—related to but distinct from Bolivian walipini pit greenhouses. Exact title: Deep Winter Greenhouse; by Jodi Henke; datePublished 2021-12-11 on agriculture.com Living the Country Life Radio podcast path. Page: University of Minnesota developing self-standing deep winter greenhouses using minimal fossil fuels and artificial light for northern climates. Greg Schweser (UMN sustainable agriculture/food systems) quoted on heavy insulation and sloped south-facing glazing maximizing solar gain on the coldest day. Describes intake manifold moving rising solar heat into underground storage; heat returns when interior drops ~40°F; vents open near ~80°F.

Evidence tier: podcast. RELATED DISTINCT from walipini: UMN deep winter greenhouse is typically an above-grade insulated solar structure with rock-bed storage, not a full pit walipini.

podcast|candidate