Separett Tiny
A modern, compact diverting toilet for vans and tiny houses that want a fill sensor and a hidden solids bin, backed by a five year warranty.
Amazon $999$999
The Separett Tiny and the Nature's Head Composting Toilet are evenly matched, rated 3.6 and 3.6. The Separett Tiny leads on capacity. The Nature's Head Composting Toilet wins on power. The Nature's Head Composting Toilet costs $34 less ($965 vs $999).
Nature's Head Composting Toilet
The default pick for vans, boats and cabins: a proven urine-diverting toilet with a crank, a tiny fan draw and a five year warranty.
Amazon $1,035 Nature's Head $965$965
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Separett Tiny for capacity (solids capacity not published, 2 gal urine bottle vs about 60 uses per solids bin, 2.2 gal urine bottle).
- Choose the Nature's Head Composting Toilet for power (0.8 W fan vs 1.6 W fan).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every urine-diverting toilet; a clear win is highlighted. How we rank explains each one.
| Factor weight | Separett Tiny | Nature's Head Composting Toilet |
|---|---|---|
| Overall rating | 3.6/5 | 3.6/5 |
| Value 30% | 33 $999 | 36 $965 |
| Capacity 25% | 57 solids capacity not published, 2 gal urine bottle | 43 about 60 uses per solids bin, 2.2 gal urine bottle |
| Power 15% | 92 1.6 W fan | 100 0.8 W fan |
| Certification 15% | 50 NSF/ANSI 41 certification not stated (neutral score used) | 50 NSF/ANSI 41 certification not stated (neutral score used) |
| Warranty 15% | 100 5-year warranty | 100 5-year warranty |
Specifications
| Separett Tiny | Nature's Head Composting Toilet | |
|---|---|---|
| Capacity | ||
| Type | Urine-diverting | Urine-diverting |
| Uses per solids bin | - | 60 uses |
| Urine bottle | 2 gal | 2.2 gal |
| Urine drain option | No | No |
| Agitator | No | Yes |
| Power and venting | ||
| Power | 12V/120V | 12V |
| Fan | 1.6 W | 0.8 W |
| Vent size | 2 in | 1.5 in |
| Build | ||
| Seat height | 17.3 in | - |
| Dimensions | 15.7 x 19.6 x 18.5 in | 19 x 19 x 21 in |
| Weight | 18.7 lb | 23 lb |
| Material | High-gloss polypropylene outer; polyamide and polypropylene inner | - |
| Warranty | 5 years | 5 years |
| Released | 2021-04-01 | - |