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This Passive Energy Greenhouse Stays 50°F in Single-Digit Temps — Here's How
Owner and builder walk through a 36×18 steel greenhouse using thermal mass (water totes, concrete), earth tubes, and insulation to stay 50°F in winter with no electricity
🔧 Gear featured in this video
Big Berkey 2.25-gal Gravity Filter
Two-element gravity filter for households. Removes 99.9% of pathogens. Lasts decades with replacement elements.
Sawyer Mini Water Filter
Pocket-sized 0.1 micron filter. Rated to 100,000 gallons. Standard inclusion in most bug-out bags.
Why we picked this
Owner and builder walk through a 36×18 steel greenhouse using thermal mass (water totes, concrete), earth tubes, and insulation to stay 50°F in winter with no electricity This video covers thermal-mass, earth-tubes, passive-solar, year-round-greenhouse, steel-construction, cold-climate-growing and is featured among our top picks for food & water — it also surfaces in Energy..
Source: YouTube
This video lives on YouTube. Cockroach embeds it here via the platform's standard embed — no rehosting, no re-encoding. The creator earns ad revenue normally.
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