Summary My interest in compost bin thermal performance didn’t start with reviewing bins — it started with designing one. Eighteen months of testing during the HOTBIN development process, working through the physics of heat retention, insulation, and airflow from first principles, is the reference point I bring to any bin carrying the word “Thermo” in…

Summary Full disclosure upfront: I designed the HOTBIN, so I have an obvious interest in how this review lands. Read it with that in mind. I had this bin on test for three months of direct testing experience – I report what I found. The Bioheat is a Chinese-manufactured import sold through various UK resellers…

Aerobin 200L Composter The Aerobin is one of the few bins in this review set that I approach with genuine respect rather than scepticism — and with a degree of professional interest. It launched around the same time as the HOTBIN, and represents the other serious attempt during that period to engineer a true hot…

Summary The Aerobin is one of the few bins in this review set that I approach with genuine respect rather than scepticism — and with a degree of professional interest. It launched around the same time as the HOTBIN, and represents the other serious attempt during that period to engineer a true hot composter for…

Summary During my development of the HOTBIN composter, I built and tested several rotating drum prototypes before abandoning the approach entirely. That decision wasn’t arbitrary — it came from working through the engineering with Professor Haug’s composting engineering handbook as a reference, and from cleaning out more than one compressed anaerobic mess. Four specific problems…

Summary During my development of the HOTBIN composter, I built and tested several rotating drum prototypes before abandoning the approach entirely. That decision wasn’t arbitrary — it came from working through the engineering with Professor Haug’s composting engineering handbook as a reference, and from cleaning out more than one compressed anaerobic mess. Four specific problems…

Summary During my development of the HOTBIN composter, I built and tested several rotating drum prototypes before abandoning the approach entirely. That decision wasn’t arbitrary — it came from working through the engineering with Professor Haug’s composting engineering handbook as a reference, and from cleaning out more than one compressed anaerobic mess. Four specific problems…

Summary During my development of the HOTBIN composter, I built and tested several rotating drum prototypes before abandoning the approach entirely. That decision wasn’t arbitrary — it came from working through the engineering with Professor Haug’s composting engineering handbook as a reference, and from cleaning out more than one compressed anaerobic mess. Four specific problems…

Summary During my development of the HOTBIN composter, I built and tested several rotating drum prototypes before abandoning the approach entirely. That decision wasn’t arbitrary — it came from working through the engineering with Professor Haug’s composting engineering handbook as a reference, and from cleaning out more than one compressed anaerobic mess. Four specific problems…

Summary During my development of the HOTBIN composter, I built and tested several rotating drum prototypes before abandoning the approach entirely. That decision wasn’t arbitrary — it came from working through the engineering with Professor Haug’s composting engineering handbook as a reference, and from cleaning out more than one compressed anaerobic mess. Four specific problems…