Bioshelter and passive-solar greenhouses
been pretty negative about the idea of a greenhouse in the past
because our quick hoops do a great job with cold-hardy crops, and I'm
simply not willing to heat a greenhouse to keep tropicals going all
winter. However, Paradise
Lot (which I'll
review later) included information on what they call bioshelter
greenhouses, one of which they report allows citrus to grow without
additional heat during Massachusetts winters. After some web
browsing, I realized that bioshelters are really just a rebranding of
what was called a passive-solar greenhouse in the 1970s --- both types
of structure are designed to keep a greenhouse as warm as possible with
no heat source other than the sun.
Our chicken waterer brings clean water to backyard birds around the world.
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