DIY Geothermal Greenhouse Pt 10: POLY FILM INFLATION

This #119 In this video we look at the poly film inflation on our DIY geothermal greenhouse and discuss some initial data on the earth battery system.

*We readily admit we are not experts at this (we are not engineers, greenhouse experts, or thermodynamic scientists), but a family doing our best to do it all ourselves and install based on all that we have read or watched on YouTube (Don't believe everything you see on the internet) to date and in line with our limited budget. Based on comments on previous videos, we already know some things should be done differently. Hopefully, it still works well enough, even if not optimally. We plan to share the results regardless.

Background on the project: Our farm homestead came with metal pipes in the ground from a former 16' x 50' hoop house. It also had water lines run from the farm well (which also needed to be restored) and a 60 amp electric service. In the first video we installed the 1.25" EMT conduit that serves as the structure.

Each rib or section of the greenhouse consists of three 10' pipes, no cutting. They are joined by stock EMT connectors. The two outer angles are 117.3. The ridge angle is 125.4. Sides are 6' tall. Just over 10' to the ridge. 16' wide.

We installed an geothermal earth battery under the greenhouse using 4' perforated drain pipe and use high efficiency fans to pull hot air from the top down into the earth, storing that heat, and returning cool air during the day. At night, we reverse the process.

Ultimately, this will be a double wall plastic film greenhouse.



Jason Shaw: "Landra's Dream"