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How We Heat Our Greenhouse for FREE using Water as a Thermal Battery (No Gas or Electricity!)
What if your greenhouse could heat itself — no gas, no electricity, no propane? That's exactly what we built, and the secret is simpler than you think: thermal mass using black IBC water totes like these we purchased from Los Angeles Tote! We partnered with Los Angeles Tote because they had the best quality, best price, and they look nice. Used totes that look brand new? Yes, please!