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Best Composting Toilet: Helping you Choose the Right One
Searching for the best composting toilet? You're in the right place! We’ll break down the top options for different needs, from RV travel to off-grid living. Find out which models excel in performance, ease of use, and sustainability.
Best Composting Toilets At a Glance:
We'll go straight into what the best composting toilet is for each scenario, then dive more into the details of how composting toilets work, what the difference is between self containing composting toilets, batch composting toilets and continuous composting toilets and more!
Table of Contents
- Best Composting Toilet for RV
- Best Composting Toilet for Tiny House
- Best Composting Toilet for Cabin
- Best Composting Toilet for Off-Grid
- Best Composting Toilet for a Vacation Home
- How to Use a Composting Toilet
- Different Types of Composting Toilets
- Comparing Urine Diverting Composting Toilets
- What's the difference between a Self Contained or a Collection Urine Diverting Composting Toilet?
- Common Problems and Solutions with Composting Toilets
- Frequently Asked Questions
Best Composting Toilet for an RV or Van Life
Composting toilets for RVs and Van Life are essential. They allow travellers to extend their journey without worrying about water supply or finding dump stations. Here are our recommendations for the best composting toilets for RV's and Vans:
Nature's Head Composting Toilet
- Self Contained Urine Diverting System
- Compact Design
- Known for it's quality build
- Made in the USA
- Easy to Use & Low Maintenance
- Empty solids bin every couple of months
- No Odor
- Height: 20" Width: 19" Depth: 17.75"
- $1030
Laveo Dry Flush Toilet
- Self Sealing Bag system
- Ultra-portable
- No ventilation required
- Holds a charge for 300 flushes.
- No Bulking Material needed
- Easy to Use & Low Maintenance
- No Odor
- Height: 18" Width: 16" Depth: 20"
- $1095
RV Pod
- Collection Urine Diverting System
- Specifically designed for RV's
- Compact
- Easy to empty
- No Bulking material needed
- Easy to Use & Low Maintenance
- No Odor
- Height: 19.7" Width: 13.8" Depth: 20.9"
- $1099
Best Composting Toilet for Tiny House
In the cozy confines of a compact space, every inch counts. Here are some compact toilets that are perfect for tiny homes where space is at a premium:
Separett Villa
- Collection Urine Diverting System
- Optional Urine Collection container or drain
- Odor Free
- High Capacity - 5 people using it will need to be emptied every 4-6 weeks
- Solids area screen opens automatically when you sit
- Easy to empty
- Height: 21.3" Width: 19" Depth: 26.5"
- $989
Sun-Mar Compact
- Self Contained Continuous Composting System
- Easy Installation, No need for Plumbing
- Odor Free
- Easy to empty, completed compost falls into emptying container
- No liquids container to empty or drain
- Accomodates 1-2 users full time, 3-4 seasonally/vacation
- Height: 28 1/2″ Width: 21 1/2″ Depth: 33″
- $2060
Tiny Pod
- Self Contained Batch Composting System
- Designed specifically for Tiny Homes & Compact Spaces
- Easy to Empty
- No liquids container to empty
- Accomodates 1-2 users, can be expanded with add on compost bins
- Covering/Bulking Material allows it to be odor free
- Height: 19.3" Width: 13.8" Depth: 20.5"
- $749
Nature's Head Composting Toilet
- Self Contained Urine Diverting System
- Compact Design
- Known for it's quality build
- Made in the USA
- Easy to Use & Low Maintenance
- Empty solids bin every couple of months
- No Odor
- Height: 20" Width: 19" Depth: 17.75"
- $1099
Best Composting Toilet for Cabin
Living off-grid brings unique challenges, and having a composting toilet that is sustainable and low-maintenance is crucial. Your choice will really depend on how often you'll be using it, if you live in the cabin full time or if it's a vacation spot, also how many people it needs to accommodate.
Green Toilet Family Package
- Self Contained Batch Composting System
- Installed under the floor
- Can be installed indoors or outside in an outhouse
- High Capacity & Expandable
- No urine container to empty
- Easy to use and Low maintenance
- 2X UN Sustainability Award Winning System
- No Odor
- under the floor compost container size: x23.62 in Width, 23.62 in Depth, 27.56 in Height
- $1395
Oz-e Pod
This toilet works great for full time or part time use.
- Self Contained Batch Composting System
- No liquids container to empty
- Easy to empty and maintain
- Expandable size with additional compost bins available
- Privacy screen to cover waste
- No odor
- Easy to use and Low Maintenance
- Easy installation
- Height: 17.7" Width: 19.3" Depth: 25.2"
- $1590
Nature's Head Composting Toilet
This toilet works great for full time or part time use.
- Self Contained Urine Diverting System
- Compact Design
- Known for it's quality build
- Made in the USA
- Easy to Use & Low Maintenance
- Empty solids bin every couple of months
- No Odor
- Height: 20" Width: 19" Depth: 17.75"
- $1099
Sun-Mar Excel
- Self Contained Continuous Composting Toilet System
- Only needs emptying a few times a year
- Easy Installation, No need for Plumbing
- Odor Free
- Easy to empty, completed compost falls into emptying container
- No liquids container to empty or drain
- Full time use can accomodate 3-5 ppl, Seasonal use can accomodate 6-8 ppl
- Height: 33 1/4″ Width: 22 1/2″ Depth: 33″
- $2120
Best Composting Toilet for Off-Grid
Living off-grid means you need a composting toilet that doesn't require plumbing and will be reliable and add to your sustainable lifestyle. These are our top two recommendations based on quality, capacity and ease of use:
Green Toilet Lux by Waterless Toilet Shop
- Self Contained Batch Composting System
- Compost Container installed under the floor
- Comfortable Poreclain toilet to sit on that also hides waste in compost bin
- Can be installed indoors or outside in an outhouse
- High Capacity & Expandable
- No urine container to empty
- Easy to use and Low maintenance
- 2X UN Sustainability Award Winning System
- No Odor
- under the floor compost container size: x23.62 in Width, 23.62 in Depth, 27.56 in Height
- $1890
Sun-Mar Excel Composting Toilet
- Self Contained Continuous Composting Toilet System
- Only needs emptying a few times a year
- Easy Installation, No need for Plumbing
- Odor Free
- Easy to empty, completed compost falls into emptying container
- No liquids container to empty or drain
- Full time use can accomodate 3-5 ppl, Seasonal use can accomodate 6-8 ppl
- Height: 33 1/4″ Width: 22 1/2″ Depth: 33″
- $2120
Best Composting Toilet for a Vacation Home
If you are placing your Composting Toilet in a Vacation Home or Air BNB you are going to want it to be EASY to use and durable, and ideally the closest possible thing to using a traditional toilet. If you are installing it inside, I would recommend the Separett Villa.
- Looks similar to a traditional toilet
- No bulking material needed
- No Tumbling or Cranking required
- Flap over the solids bin that hides the waste and opens automatically when you sit down
- Urine is drained out, not caught, so no emptying is required
- High Capacity, with 4 users it should fill in about 4-6 weeks
- Height: 21.3" Width: 19" Depth: 26.5"
- $989
Intro to Composting Toilets
A composting toilet might just be the game-changer you haven’t considered yet. It’s an odorless, waterless system that transforms human waste into compost, a stark contrast to traditional flush toilets which require gallons of water and complex sewage treatment. Sustainable living is not just a trend but a necessity, these toilets offer an ingenious solution to a problem as old as civilization itself—the disposal of human waste.
As tiny homes and RV living become more than a new trend, the demand for composting toilets has soared. With roughly 4 million Americans living without a flushing toilet, it’s clear that the traditional bathroom setup isn’t accessible or desirable for everyone. Let’s explore how these eco-friendly toilets are making a significant impact on how we think about waste.
Understanding Composting Toilets
Composting toilets are an epitome of green technology. By separating liquid and solid waste, they facilitate a natural process where human waste is broken down into nutrient-rich compost. Unlike traditional toilets, composting toilets operate without water, saving this precious resource and allowing for installation in places where plumbing might not be an option.
The beauty of these systems lies in their simplicity and environmental benefits. They’re 100% green and help reduce the ecological footprint of our most basic human need—sanitation. Whether it’s a tiny house or a sprawling homestead, composting toilets offer a sustainable and efficient waste management solution.
Who Uses Composting Toilets?
Who exactly uses composting toilets? The answer might surprise you. Composting toilets are used by:
- RV and Van owners seeking freedom on the open road
- Eco-conscious individuals building their tiny homes
- People who value sustainability and want to reduce their environmental impact
- Those living off the grid, where traditional utilities may not be available or reliable
- People experiencing Mobility issues that need a toilet in an untraditional space (i.e beside their bed)
How to Use a Composting Toilet
At its core, a compact composting toilet is a marvel of simplicity and efficiency, making many people wonder how does a composting toilet work. It separates liquids from solids, with urine typically diverted to a front canister or urine drain and solids collected in a bucket at the back. The secret to a well-functioning compost toilet system is ventilation—using a fan to circulate air and control humidity, thus preventing odor and facilitating the drying process.
The composting process thrives on balance—heat, oxygen, moisture, and organic material all contribute to a natural decomposition that turns human waste into compost. With proper maintenance, a composting toilet produces a nutrient-rich material, devoid of sewage smell, ready to nurture the soil. It’s a beautiful cycle that reflects the natural processes of the Earth.
Different Types of Composting Toilets
Urine Diverting
A Urine Diverting Composting toilet generally has two openings, one in the front to divert the liquid and a larger opening in the back to handle solid waste. Generally the liquid is either caught in a container that will fill and need to be emptied, or will have a drain that can be diverted to another container or a trench. Urine is sterile, so it is not unsafe, however it can cause odor if not handled correctly.
The Solids bin will usually have compost bulk material that mixes with the solid waste which allows for the compost process to happen. The solids will turn into soil and should have an earthy smell (because it's soil) and will not smell like human waste.
Batch Composting
A Batch Composting Toilet will have one large opening that both solid and liquid waste go into. There will be drainage at the bottom of the bowl/container to allow excess moisture to drain out and there will be a drain tube to allow it to leave the toilet. Urine will actually speed up the composting process, so allowing it to pass through the waste can be a great thing. You will need to add some composting bulk material to the bowl as well, such as coco coir or sawdust.
Once the composting container is full, you can place the lid on the bowl and put it in a shed or out of view to allow the composting process to finish. Then you just place the fresh composting container in the toilet to continue use.
Continuous Composting
A continuous composting toilet is an eco-friendly type that composts waste continuously in a single container. Unlike batch systems, where you swap out full containers, a continuous system lets you add new waste on top while older waste breaks down at the bottom. This design allows you to remove composted material from one end, usually the bottom or front, while adding fresh waste from the top or back.
These toilets manage moisture, vent to prevent smells, and often separate liquid and solid waste. This setup boosts composting efficiency, making the toilets usable for longer periods without needing frequent emptying.
Comparing Urine Diverting Composting Toilet Models
| Price | $1030 | $1030 | $766 | $1099 | $989 | $999 |
| Dimensions | Height: 20" Width: 19" Depth: 17.75" | Height: 17" Width: 18" Depth: 17.75" | Height: 19.8″ Width: 15.75″ Depth: 24″ | Height: 19.7" Width: 13.8" Depth: 20.9" | Height: 21.3" Width: 19" Depth: 26.5" | Height: 18.5" Width: 15.7" Depth: 19.6" |
| Weight | 28 lbs | 26 lbs | 25 lbs | 31 lbs | 42 lbs | 18.7 lbs |
| Electricity Requirement | 12 V fan with optional 110V adapter | 12 V fan with optional 110V adapter | 12V dc fan 0.6W (110V, 240V) | 12V fan with 110V adapter | 12V fan with 110-240 V universal adapter | 12V fan, 110-240 V adapter |
| Self Contained or Collection | Self Contained | Self Contained | Collection | Collection | Collection | Collection |
| Capacity | 6.5 Gallons. 2 Full time users will fill the solids bin in about 3 - 4 weeks | 2 Full Time users will fill the solids bin in about 2 weeks | 6 Gallons. Empty Compostable bag when needed. | 3.96 Gallons. Empty Compostable bag when needed. | 6.1 Gallons. 4 people can use it for about a month. | 3.8 Gallons. |
| Special Features | Easy to Use Agitator Handle | Even more compact than the original Nature's Head | Portable, can be used at a campsite etc. | Ultra Compact. Has an LED Light to indicate when liquids container is full | Solids area opens automatically when you sit | Can use a Urine container or Drain. Super compact. |
| Bulking Material Required? | Yes | Yes | Yes (as covering material) | No | No | No |
| Urine Container or Drain | Container | Container | Container | Container | Drain | container or drain |
What's the difference between a Self Contained or a Collection Urine Diverting Composting Toilet?
A Self contained urine diverting composting toilet means that the waste material gets composted within the toilet with your bulking material. When it's full, the material will be ready to add to your lawn or garden.
A Collection urine diverting composting toilet means that the waste is collected in a bin within the toilet that is lined with a compostable bag and you empty it when its full. You then place the bag into your compost pile to let the waste finish composting.
Some people choose to add bulking material to their waste bin each time they go so they can simply throw the bag in the garbage when it's full.
Top Brands of Composting Toilets
When it comes to the best composting toilets, several brands have made a name for themselves with their reliability and innovative features.
- Nature’s Head
- Waterless Toilet Shop
- Separett Villa
- Laveo Dry Flush
- Sun-Mar Excel
Nature's Head Composting Toilet
The incredibly popular, compact & durable urine diverting composting toilet
- Stainless-steel hardware
- 12V electric fan
- Designed to handle the demands of up to four users with ease
- Compact design, often used in Vans, Tiny Homes and Cabins
- Waterless system that separates liquids from solids (Urine Diverting)
- Requires a composting material like coconut fiber or peat moss to aid the process
- Simply Crank the tumbler to get oxygen into the compost after each use
- Easy to Empty
- Urine is caught and will need to be emptied once container is full
- Compost container gets emptied once full, can throw it in the garbage or use the compost in the garden
Installation is a breeze with secure L-brackets and a single hose for ventilation, making it a favorite among RVers and tiny house dwellers alike. And when it’s time to empty the tank, the process is straightforward, ensuring a clean and hassle-free maintenance routine.
The Waterless Toilet Shop
The Waterless Toilet shop started in Finland over 30 years ago, then expanded to Australia and now have expanded to the United States. They have a fabulous reputation for durability and innovation. They are known for their Green Toilet, which uses a batch composting system and replaces the need for an outhouse. They have a large variety of composting toilets, urine diverting compact systems, batch composting systems for longer use and larger crowds, as well as continuous composting systems. Whatever you need, they have a composting toilet for you!
- Most commonly used in outhouses for larger families or crowds
- Can be used in Tiny Homes & Cabins
- Comes with a spare container for easy switch outs to allow the composting process to complete while still using the toilet
- Designed with durability in mind. There are no easy to break parts, so even in public use, the Green Toilet will last.
- 3-5 people part time/seasonal use, or 1-2 people full time use. If the use will be higher, all you need to do it buy an extra container to switch it out when full.
- Compact Size for Vans, Tiny Homes and RV's
- Urine diverting toilet
- Compostable bag for easy solid removal once full
- 12V Fan and a chamber screen to prevent any odours
- LED light liquids indicator to see when it's full
- No bulk agent or covering material needed. When solids container is full, it's emptied onto a compost pile and should be buried by 4 inches of compost or covering material.
- When 2 people are using it regularly, the solids chamber will fill in about 2 weeks of use
- Made in Australia
Separett Villa Composting Toilet
The Separett Villa composting toilet stands out with its user-friendly design and sophisticated urine-diverting system. It offers the following features:
- User-friendly design
- Sophisticated urine-diverting system (drained out, not collected)
- Using it feels like a regular toilet
- Waste hiding flap opens automatically once you sit, no need to open it yourself
- No Bulking Material Needed
- No Cranking or Tumbling necessary
- Easy maintenance
- Odor-free operation
- Internal fan for ventilation and dryness
- Low power consumption (17 watts)
With these features, the Separett Villa provides a convenient and odor-free composting toilet solution.
Whether you’re living off-grid or simply want to reduce your environmental impact, the Separett Villa is a reliable and efficient choice. Its compact size allows for easy installation in a variety of settings, from cabins to mobile homes.
Laveo Dry Flush Portable Toilet
Although the Laveo isn't a Composting Toilet, I thought it would be a disservice not to include it for those looking for an off-grid toilet solution. For those on the go, the Laveo Dry Flush Portable Toilet is a game-changer. Its unique features include:
- A bagging system that seals waste with each flush
- Incredibly portable design
- Waterless operation
- Odor-free design
- No bulking material or tumbling required
- Can hold a charge for 300 flushes, so no need to keep it plugged in
- No Venting Required
These features make it an attractive option for campers and road trippers.
The Laveo’s maintenance is as simple as its use: wipe down the exterior, and you’re done.
Thanks to its innovative design that keeps waste contained and out of sight. Its compact size and the ability to hold up to 500 lbs make it a robust choice for nearly any adventure.
Sun-Mar Excel
The Sun-Mar Excel Composting Toilet is a super popular choice. It uses a patented Bio-Drum Technology that allows it to be self contained and easy to use.
- Patented Bio-drum Technology: Features a rotating drum that facilitates composting by mixing and aerating waste material.
- Two-Chamber Design: Allows for continuous composting; one chamber is in use while the other composts.
- Self-Contained System: Does not require plumbing or water connection, making it versatile for different installations.
- Continuous Composting: Waste is composted continuously with the rotation of the drum so you can easily remove the ready to go compost without needing to empty the whole toilet.
- Non-Electric Option Available
- Perfect for Cabins, Off-Grid Homes & Homesteads
- Residential/Continuous - 3 adults or families of 5
- Seasonal/Vacation - 6 adults or families of 8
Installation Tips for an RV or Camper
Secure installation is paramount when it comes to fitting a composting toilet in an RV. Here are some steps to follow:
- Fasten the toilet to the floor to prevent any movement during travel.
- Ensure proper ventilation
- Keep maintenance and emptying in mind when chosing where to install your composting toilet
Common Problems and Solutions with Composting Toilets
Like any system, composting toilets can face issues, but fear not—solutions are at hand. Odors, often caused by excess moisture or clogged hoses, can be managed by ensuring functional ventilation and regular maintenance. Bugs and pests can also be deterred with proper care and a sealed system.
Waste Disposal
There are a variety of composting toilets to choose from, each offering their own unique way to dispose of waste.
Composted waste is safe to discard in the trash or simply add it to your lawn or garden.
Managing Pests
If your composting toilet has a vent, be sure to cover it with mesh to prevent pests from coming in.
Aside from that, composting toilets are generally pretty sealed so just keep your lid closed and you should be good to go.
Odor Control
Generally composting toilets can sometimes have a slight earthy smell from the compost, they shouldn't smell like urine or waste if they are being handled correctly.
Check the instructions of your model to make sure you're cleaning and maintaining it correctly.
Installation
Each composting toilet will have different installation instructions, but generally they include mounting to the floor and installing a vent.
A few models can be completely portable with no vent install needed, so if that's what you need, it is available.
Maintenance Tips
Routine maintenance is essential for keeping your composting toilet in top condition.
Natural cleaners like vinegar are your best friend when it comes to keeping the system clean and hygienic.
Regular checks on the urine container or urine diverting system are always a good idea as urine is generally the biggest culprit of odors.
Composting Toilet Considerations at a glance:
Composting toilets that don't require Tumbling or Cranking:
Separett Villa, Separett Tiny, Oz-E Pod by The Waterless Toilet Shop, RV Pod by The Waterless Toilet Shop, Green Toilet by The Waterless Toilet Shop, Laveo Dry Flush Toilet
Batch Composting Toilets:
Oz-E Pod by The Waterless Toilet Shop, Green Toilet by The Waterless Toilet Shop, Tiny Pod by The Waterless Toilet Shop
Continuous Composting Toilets:
Sun-Mar Excel Sun-Mar Excel NE (Non Electric), Sun-Mar Compact Composting Toilet, Sun-Mar Spacesaver
Composting Toilets that are the most like using a regular toilet:
Separett Villa
Composting toilets that can handle large crowds:
Green Toilet by the Waterless Toilet Shop, GL 90 by the Waterless Toilet Shop and Sun-Mar Centrex
Composting toilets that only get emptied once or twice a year:
Sun-Mar Excel, Centrex Central Composting Toilet System by Sun-Mar, Green Toilet by The Waterless Toilet Shop
Composting toilets that are completely portable:
Laveo Dry Flush
Composting toilets that don't require electricity:
Sun-Mar Excel NE, Laveo Dry Flush (holds a charge for 300 flushes) and Tiny Pod by The Waterless Toilet Shop. Most of the other compost toilets can hook up to a solar panel or battery as well
Composting toilets that can fit in a tiny space:
Nature's Head Composting Toilet Tiny Pod by The Waterless Toilet Shop, Separett Tiny, Sun-Mar Compact
Composting toilets that don't require emptying urine:
Sun-Mar Excel (evaporates urine), Separett Villa (empties through tube and leaves your home), Oz-E Pod by The Waterless Toilet Shop (empties through tube and leaves your home), Laveo Dry Flush Toilet (contains all waste in self sealed bags and is disposed of), Green Toilet by The Waterless Toilet Shop (works like an outhouse)
Composting toilets that don't require bulking material:
Separett Villa, RV Pod by the Waterless Toilet Shop, Laveo Dry Flush Toilet
Best Composting Toilet Frequently Asked Questions
How do composting toilets handle toilet paper?
Composting toilets can handle toilet paper, especially if you use single-ply paper as it breaks down more easily. Just make sure to use toilet paper that is safe for composting.
Can composting toilets really be odorless?
Yes, with proper maintenance, ventilation, and moisture control, composting toilets can be virtually odorless.
Is it difficult to install a composting toilet in an RV?
Installing a composting toilet in an RV is generally straightforward if you have some DIY skills, as it involves securing the toilet to the floor and ensuring proper ventilation.
What happens to the waste in a composting toilet?
The waste in a composting toilet is broken down into compost with the help of bulking materials like coco coir or peat moss. This natural decomposition process turns the waste into usable compost for gardening or landscaping purposes.
Are composting toilets legal in all areas?
Composting toilets are legal, but you should check the local regulations when it comes to disposal of waste. The composted waste should be totally safe to add to your lawn or garden, or simply dispose of in the garbage.
The Best Composting Toilet For You
Composting toilets are a smart choice for anyone looking to live sustainably. Whether you’re on a homestead, in a tiny home, or traversing the country in an RV, there’s a composting toilet that fits your needs.
By embracing this eco-friendly option, you’re contributing to a healthier planet and a more resourceful way of living. We would love it if you would make your purchase through our family run shop, Wild Oak Trail. It really means the world to us!
Call us at 1-844-WILDOAK (945-3625), email at customersupport@wildoaktrail.com or chat in on our website. We'd love to hear from you!
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