NEW: Greenhouse 2.0 https://youtu.be/Ze0nXN6Vvic
Re-engineered version of my 2016 compost-based system for greenhouse heating. Like the old system, the 2017 system still transfers heat via circulated air, but the 2017 system has far better insulation and a larger compost chamber.
Part 2 (https://youtu.be/pZGDIBeBLNs) focuses on the recipe I use for the compost (ONLY LEAVES AND COFFEE!)
Part 3 (https://youtu.be/7weq02JHi1U) summarizes the performance of the compost pile over a two-week period and shows real performance data of the system on a cold morning.
In part 4 (https://youtu.be/xNUlrwqNXa8), give a retrospective of the 2017 season. The greenhouse kept my tomatoes alive until December 7!
To see how I built the 2016 system, and how it performs, click here:
I didn’t have compost in the unit at the time of filming, but it should be cooking by the end of October, 2017, thanks to spent coffee grounds supplied by the generous baristas at Keith’s Coffee Bar (https://www.facebook.com/keithscoffeebar/) in Denver