Greenhouse thermal-mass water wall, built from a recycled IBC tote
Painted, water-filled totes provide passive thermal mass for a greenhouse at hobby-budget cost, using a container already built to hold 1,000 L safely.
Recycled IBC
Reuses a durable, standardised container. Diverts it from scrap and avoids new-material carbon.
commercial water-wall panels
A purpose-built product — bought new, moulded or fabricated from virgin material.
IBC Tanks — solar hot water / thermal use of totes →
A real-world write-up with photos of this reuse in practice.
Painted, water-filled totes provide passive thermal mass for a greenhouse at hobby-budget cost, using a container already built to hold 1,000 L safely. That advantage is real for this job specifically — not a blanket claim that a tote is best for everything.
Suitability & safety
This is a water- or contact-adjacent use. Use only a documented previous-food-use bladder that has been properly cleaned; never use a non-food or unknown-history tote for it.
For any water-holding reuse, shield the bladder from sunlight to prevent algae, fit food-safe fittings, and rinse thoroughly before first use.