Nature's Head Composting Toilet
#10 in Urine-divertingFull review
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
The Nature's Head Composting Toilet is the better toilet overall, rated 3.6 to 3.1. The Nature's Head Composting Toilet leads on value. The Nature's Head Composting Toilet costs $214 less ($965 vs $1,179).
Thinktank Waterless Toilet
#20 in Urine-divertingFull review
A household style diverting toilet for cabins and tiny homes with a urine drain, the one to pick if guests need to stand to pee.
Amazon $1,179$1,179
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 Nature's Head Composting Toilet for value ($965 vs $1,179).
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 | Nature's Head Composting Toilet | Thinktank Waterless Toilet |
|---|---|---|
| Overall rating | 3.6/5 | 3.1/5 |
| Value 30% | 36 $965 | 17 $1,179 |
| Capacity 25% | 43 about 60 uses per solids bin, 2.2 gal urine bottle | 39 about 50 uses per solids bin, urine can drain |
| Power 15% | 100 0.8 W fan | 50 power draw not published (neutral score used) |
| 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 6-year warranty |
Specifications
| Nature's Head Composting Toilet | Thinktank Waterless Toilet | |
|---|---|---|
| Capacity | ||
| Type | Urine-diverting | Urine-diverting |
| Uses per solids bin | 60 uses | 50 uses |
| Urine bottle | 2.2 gal | - |
| Urine drain option | No | Yes |
| Agitator | Yes | No |
| Power and venting | ||
| Power | 12V | 12V/120V |
| Fan | 0.8 W | - |
| Vent size | 1.5 in | 3 in |
| Build | ||
| Seat height | - | 19 in |
| Dimensions | 19 x 19 x 21 in | 18 x 23.2 x 19 in |
| Weight | 23 lb | 30 lb |
| Material | - | Rotationally molded plastic |
| Warranty | 5 years | 6 years |