Composting toilets
Natural, Eco-friendly toilets for your lifestyle
Discover odour-controlled, water-free composting toilets built for off-grid living—designed specifically for vanlife, cabins, boats, and tiny spaces.
Composting
Cuddy Composting Toilet
£870.00Meet Cuddy, the best self-composting toilet for your lifestyle. Perfect for long-term adventures, off-grid living, or anyone who wants a more sustainable solution with minimal maintenance.
Composting
Cuddy Lite is a no-fuss, easy-to-manage option that’s perfect for people who are looking for a straightforward composting toilet for occasional trips.
Why Choose Composting Toilets from CompoCloset?
Ultra-portable & waterless
Our toilets are perfect for vans, RVs, cabins, boats, and more!
Built for odour control
Keeping #1s and #2s separate = no sewage.
Easy maintenance
A urine indicator light tells you when the urine bottle needs emptying. The solids bin lifts straight out, so emptying and cleaning are quick.
Eco-conscious choice
Does not use water or harsh chemicals.
Two styles, one idea
There are two kinds
of composting toilet
Composting toilets come in two styles. Some have no agitator and use the layering method, often called manual bagging. Others are self-contained units with a built-in agitator. We make one of each. Both divert urine into its own 6.5 litre bottle, so urine and solids never mix and there’s no sewage smell.
The layering method (no agitator)Cuddy Lite
Line the solids bin with a bag, add a layer of coco coir, and cover each #2 with a little more. When the bag’s full, tie it off and toss it. It’s the easiest composting toilet there is to empty and clean, and it needs no power or wiring.
Best for: weekends, guests, part-time use and anyone who wants zero wiring.
- 1. Line it. Pop a bag in the solids bin and add a layer of coco coir.
- 2. Use it. #1s flow into the urine bottle at the front. After a #2, sprinkle a scoop of coir on top.
- 3. Empty it. After 8–12 uses, tie off the bag and bin it (check your local rules). Empty the urine bottle every few days.
The self-contained composting unit (with agitator)Cuddy
Solids drop onto a bed of coco coir in the bin. After each #2 you turn the built-in agitator to mix and dry them, while a 12V fan pulls air through a refillable carbon filter. There are no bags, and two people get 2–3 weeks between empties.
Best for: full-time vanlife, RVs, tiny homes and cabins.
- 1. Prep it. Add coco coir to the solids bin and connect the fan to 12V power. You have multiple venting options.
- 2. Use it. #1s flow into the urine bottle at the front. After a #2, give the agitator handle a few turns.
- 3. Empty it. Every 2–3 weeks (two people, full time), tip the solids into a bag or onto your compost pile. They finish composting there over 6–12 months.
Both have covering plates, a urine indicator light and the same 432 × 386 × 418 mm footprint. No water, no chemicals, no black tank.
Cuddy vs Cuddy Lite
How They Actually Work
Same urine separation, two different routines. One’s powered and vented for full-time living, the other’s stripped back and grab-and-go. Here’s the day to day, side by side.
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FAQ
Common Composting Toilet FAQs
How does a composting toilet work?
A composting toilet works by using aerobic decomposition to transform human waste into a humus-like material suitable for use as fertiliser.
Unlike a traditional toilet which flushes waste away into a septic tank or sewage system, composting toilets treat waste locally to produce a solid substance similar to humus while liquids are separated to ensure an aerobic environment for the microbial activity.
This process of composting, in which waste is converted into a nutrient-rich soil amendment, makes composting toilets a more sustainable and environmentally friendly alternative to conventional sanitation.
Do composting toilets smell?
No, composting toilets do not smell when used properly.
They will not stink out your van, boat, tiny home, camper, or cabin.
Read more: Do composting toilets smell?
How do you empty a composting toilet?
It’s easier than you might think. For solids, most people bag them and toss them out with their household waste - kind of like dealing with a used diaper. Quick, clean, and low effort. If you’re set up for it, you can compost the solids, but be sure to follow your local guidelines and only use certified compostable bags.
Urine’s even simpler. Pour it down a regular toilet or onto soil by a mature tree, wherever local rules allow. You can also dilute it (usually 1:10) and give your ornamental plants a natural nutrient boost.
Some of our Compo Crew even divert it straight into a greywater system with our Drain Away Kit.
When do you empty a composting toilet?
Depending on size and style of composting toilet the time between emptying varies.
For Cuddy Composting Toilet, two people using it full time empty the solids bin every 2–3 weeks.
For Cuddy Lite, you tie off and swap the bag every 8–12 uses.
Cuddy and Cuddy Lite have a 6.5 litre urine bottle. It will last 2 people full time 1-2 days.
Can I urinate in a composting toilet?
Yes, you can urinate in a composting toilet.
CompoCloset composting toilets are designed to separate urine from solids to eliminate any nasty odours.
Can I put a composting toilet in an RV?
Yes, you can put a composting toilet in an RV.
It is a great way to save water, space and not deal with nasty chemicals.
Does a Composting Toilet need Power?
Most composting toilets typically do not require power for the composting process or to use them. However, it is common for composting toilets in the home or RV to have a built-in fan that requires a small amount of power.
Composting toilet or Compostable Toilet?
Composting toilets are sometimes referred to as compostable toilets. Personally, we prefer "composting toilet" because it is the process of composting that treats waste, whereas the phrase "compostable toilet" makes us think you can compost the toilet itself, which isn't the case!
Can I use soil as my covering medium?
While soil may be brown and look a bit like compost, it is not rich in carbon so is not appropriate as a covering medium. The microbes that do the composting can't eat soil or fresh dirt.
Should I add wood ash to my composting toilet?
Not needed with our toilets, since they divert urine. If you are not separating liquid waste from your solid chamber, then adding wood ash as well as a covering medium is a good way to reduce odour. Wood ash from your campfire is very alkaline. By raising the pH, the hydrolysis of urea is inhibited, preventing the formation of ammonia, which is a common reason for a smelly toilet.
Can I poo in a composting toilet?
Yes, you can poo in a composting toilet! Isn’t that the point? Composting toilets can handle #1s, #2s, puke and even periods!
Can I be sick in a composting toilet?
Composting toilets can handle all bodily waste. For vomit, it is commonly advised to add extra covering medium to absorb the additional liquid and reduce any odours.
Time to 💩 or get off the pot
Ready to Upgrade?
Not sure if a composting toilet is right for you? Check out our S1 Dry Flush Sealing Toilet (or the battery-free S1 12V)!
Still have questions? Contact us and we’ll be happy to talk toilets with you.
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