Update #1 on my DIY Geothermal Greenhouse

Watch a video about the making of my geothermal greenhouse: https://youtu.be/J8rL71zWf_c Links to equipment: The attic and fresh air fans: https://amzn.to/3eTw60G The inline G.A.H.T. fan: https://amzn.to/3BkI0YR The air circulation fan: https://amzn.to/3qFhnsG Black 1 Gal. bottles: https://amzn.to/3g1hbSz AC Infinity controler: https://amzn.to/3rLbieQ 3M Duct Tape: https://amzn.to/3SSnRAR This is the first update about prep of my G.A.H.T. greenhouse for winter. passive solar greenhouse construction heating can be much easier to heat than traditional greenhouses. A greenhouse heat sink and proper greenhouse winter insulation can make even an old window greenhouse stay warmer. diy greenhouse, green house model project, greenhouse build, building a greenhouse, green houses design, greenhouse garden ideas, diy greenhouse cheap, winter greenhouse, homemade greenhouse, how to build greenhouse, how to build a greenhouse cheap, polycarbonate greenhouse, backyard greenhouse, diy greenhouse for winter, diy greenhouse build In this video, I'll be updating you on my progress in building my winter passive solar greenhouse. I'll be covering topics like greenhouse construction, old window greenhouse insulation, and more. If you're looking to build or retrofit a greenhouse in the winter, be sure to check out this video! I'll share with you all the latest information on passive solar greenhouse construction, as well as tips on how to make your greenhouse heat sink effective in the coldest months of the year. Thanks for watching!