Nature's Head vs. Separett: Which Composting Toilet Is Best For Off-Grid?

Design and Capacity

Nature’s Head and Separett are both waterless composting toilets that use natural processes to decompose human waste. Nature’s Head has a larger capacity, with a 5-gallon (19-liter) urine container and a 5-gallon (19-liter) compost container. This allows for 10-14 days between emptying, depending on usage. Separett, on the other hand, has a smaller capacity, with a 2.5-gallon (9.5-liter) urine container and a 2.5-gallon (9.5-liter) compost container, requiring emptying every 5-7 days.

Maintenance and Odor Control

Both toilets require regular maintenance to ensure proper function and odor control. Nature’s Head has a built-in charcoal filter and a separate aeration system to reduce odors. Separett also uses a charcoal filter, but it does not have a separate aeration system. Users of both toilets report that regular maintenance, including adding carbon-rich materials like coconut coir or sawdust, is essential to controlling odors. However, Nature’s Head’s more advanced design and larger capacity make it easier to manage odors and maintain a clean system.

Installation and Upfront Cost

Both toilets can be installed in a variety of locations, but Separett is generally more suitable for smaller, more contained areas. Nature’s Head requires a larger footprint due to its larger capacity. Upfront costs for the Nature’s Head toilet are higher, with a base model starting at around $1,000. Separett’s base model starts at around $700. However, the higher upfront cost of the Nature’s Head toilet may be offset by its larger capacity and more advanced design, which can reduce maintenance costs and extend the life of the system.