And you'd get exactly what you pay for. While neither the AirHead
Airhead Toilet and the Nature's Head
Nature's Head Composting Toilets are true composters, but are desiccators that separate urine from solid waste, they have fans and vents to provide the air needed to dry out solid waste, which is needed because solid waste is 75% liquid. Peat moss etc absorb a lot of that moisture, but not well enough without a steady supply of air to the box.
The C-Head
C-Head otoh, has no fan or vent. It does separate urine from solid waste, but it just stores it along with peat, coir or other "filler" that absorbs liquid, making it essentially just a litter box...ok for a campsite or a "floating camping" size sailboat, but that's all. There was quite a lengthy discussion on cruisers.com awhile back about the relative merits of "composters" in general and also each brand/version. Someone who's a regular poster to both sites wondered aloud whether clumping cat litter would work in a C-Head. He was joking but I'm a cat (feline, not double hull boat) owner who uses a litter made from corn that's started me seriously wondering how well it would work in the C-Head 'cuz unlike clay litter, it's 99% dustless, there's -0- odor, and best of all--unlike clay litter--the scoops can be flushed down the toilet.
So if you want a "composting" toilet, buy a real one, not a litter box.
--Peggie
"If you can't explain it to a six year old, you don't completely understand it yourself." --Albert Einstein