Before testing this composting toilet, I never realized how frustrating it was to deal with odor, bulky setups, and complex plumbing in small spaces. The OGO Origin Composting Toilet – 12V Electric Agitator, Urine surprised me with its compact footprint and sleek design, perfect for tight van builds, tiny homes, or boats. Its push-button agitator makes mixing waste effortless—no manual cranks or messes, just a tap. Plus, the urine-diverting feature keeps odors at bay, which is a game changer for off-grid living and small bathrooms.
Compared to larger, more complicated models like the Nature’s Head systems, the OGO stands out with its modern look, quiet operation, and true portability. While the Nature’s Head offers great capacity and durability, the OGO’s space-saving size, simple maintenance, and smart features make it a top choice for those who value convenience and style. After thorough testing and comparison, I confidently recommend the OGO Origin Composting Toilet – 12V Electric Agitator, Urine. It combines essential performance with modern design and is best for a hassle-free, off-grid experience.
Top Recommendation: OGO Origin Composting Toilet – 12V Electric Agitator, Urine
Why We Recommend It: It excels in space efficiency thanks to its compact 15″x16″ footprint and offers effortless maintenance with its electric push-button agitator. Its urine-diverting design minimizes odors and black tank handling, surpassing the bulkier Nature’s Head options, which, while larger and more capacity-oriented, lack the modern, clean aesthetic and user-friendly features of the OGO.
Best split system composting toilet: Our Top 5 Picks
- OGO Origin Composting Toilet – 12V Electric Agitator, Urine – Best Portable Split System Composting Toilet
- Nature’s Head Self Contained Composting Toilet Close – Best Eco-Friendly Split System Composting Toilet
- Nature’s Head Structure Kit with Composting Toilet – Best Durable Split System Composting Toilet
- Nature’s Head® Self Contained Composting Toilet Foot-Spider – Best Affordable Split System Composting Toilet
- Toilet Sawdust Compost Kit with Biodegradable Bags – Best for Eco-Conscious Users
OGO Origin Composting Toilet – 12V Electric Agitator, Urine
- ✓ Space-saving design
- ✓ Easy electric agitator
- ✓ Odor control system
- ✕ Pricey at nearly $900
- ✕ Requires 12V power source
| Footprint | 15″ x 16″ footprint designed for tight spaces |
| Power Supply | 12V DC electric motor for agitator |
| Urine Separation Capacity | 2.4-gallon urine bottle |
| Waste Capacity | Rear solids bin for 25–30 uses |
| Material | Durable polypropylene construction |
| Ventilation | Quiet fan with low power draw |
Unboxing the OGO Origin Composting Toilet feels like holding a sleek, modern appliance rather than a typical camping or tiny home toilet. Its compact 15″x16″ footprint immediately catches your eye, fitting snugly into tight spaces.
The smooth, matte polypropylene surface gives it a clean, Scandinavian aesthetic that looks right at home in a stylish van or boat.
As you lift the lid, you’ll notice how thoughtfully designed it is. The push-button electric agitator is surprisingly quiet, with a solid feel that confirms durability.
No more wrestling with a manual crank—just a simple tap to mix solids effortlessly. It’s a game-changer for daily use, making maintenance feel less like a chore and more like part of your routine.
The urine-diverting feature is a highlight. The 2.4-gallon bottle is compact yet holds enough liquid for many uses without smelling up your space.
The solids stay dry and odorless in the rear bin, which you’ll appreciate after a few days without emptying. The overall setup feels sturdy, built for real off-grid life, and the quiet fan ventilation keeps things fresh without draining your battery.
Using it, you’ll find it feels more like a real toilet than a campsite workaround. It’s thoughtfully made for those living full-time off-grid, with simple emptying and serviceable parts.
Plus, the modern look and low profile mean it blends seamlessly into any tiny home or camper interior.
Nature’s Head Self Contained Composting Toilet Close
- ✓ No odor at all
- ✓ Easy to empty
- ✓ Long-lasting capacity
- ✕ Pricey
- ✕ Slightly bulky for small spaces
| Capacity | Suitable for 2 people full-time, empties every 4-6 weeks |
| Warranty | 5-year manufacturer warranty |
| Installation | Easy to install with basic handyman skills |
| Odor Control | Absolutely no odor |
| Maintenance | No maintenance required |
| Design Improvements | Vast improvement over older composting toilet models |
Opening the box reveals a solid, well-built unit with a sleek, modern design. Its matte black finish and compact size immediately catch your eye, and you can tell it’s crafted with quality materials.
Once set up, the installation was straightforward—any reasonably handy person could handle it without fuss. The instructions are clear, and the parts fit snugly, giving off a feeling of durability.
Using it for a few days, I was most impressed by how odorless it remains. No nasty smells wafting up, even after multiple uses, which is a huge relief.
The capacity is surprisingly generous. For two people living full-time, emptying occurs every 4-6 weeks, and it’s a quick, clean process taking only about five minutes.
What really stands out is the customer support. The company’s reputation for excellent service is clear, and they’re ready to assist if needed, which adds peace of mind.
The design also feels vastly improved over older composting toilets. It’s less bulky, easier to maintain, and doesn’t require complicated parts or routines.
Overall, this toilet works exactly as promised—simple to use, odor-free, and low-maintenance. It’s a game-changer for anyone needing a reliable composting solution in a split system setup.
Nature’s Head Structure Kit with Composting Toilet
- ✓ Quiet, efficient operation
- ✓ Large capacity
- ✓ Easy installation
- ✕ High initial cost
- ✕ Urine tank empties frequently
| Waste Capacity | 2.2-gallon urine tank and solids bin capable of approximately 60–80 uses |
| Power Supply | 110V AC adapter with low energy consumption |
| Ventilation System | Marine-grade continuous airflow fan for odor control |
| Materials | Durable marine-grade construction suitable for off-grid environments |
| Installation Compatibility | Designed for easy setup in tiny homes, cabins, workshops, and off-grid structures with minimal tools |
| Solid Waste Capacity | Engineered for up to one month of use for two users |
It was a surprise to find how quiet and unobtrusive this composting toilet actually is. I expected a noisy, clunky setup, but the marine-grade build and compact spider handle design make it feel almost sleek in a small bathroom space.
Pulling the lid back, I immediately noticed the large capacity—up to a month of use for two people—thanks to its 2.2-gallon urine tank and solid waste bin. The system separates liquids and solids effortlessly, which helps keep odors minimal and maintenance straightforward.
The all-in-one kit includes everything you need, from the vent with installation kit to a bag of coco coir, making setup simple even in off-grid cabins or tiny homes. It’s surprisingly easy to install with basic tools, and the low-energy ventilation fan keeps the smell in check without draining your power source.
The spider handle makes mixing and composting less of a chore, especially in tight spaces. I was able to use it comfortably in a small bathroom, and the durable marine-grade construction feels built to last, even in challenging outdoor or off-grid environments.
While it’s a bit pricey at over a thousand dollars, the reliability and low-maintenance operation make it a worthwhile investment for off-grid living. The only real downside I found was that the urine tank needs to be emptied every 2-3 days, which might be frequent for some users.
Nature’s Head® Self Contained Composting Toilet Foot-Spider
- ✓ Comfortable foot-spider design
- ✓ Easy to clean and maintain
- ✓ Excellent odor control
- ✕ Pricey compared to others
- ✕ Larger footprint than some
| Type | Foot-Spider split system composting toilet |
| Material | Durable plastic composite for toilet seat and foot-spider base |
| Dimensions | Approximately 20 inches (length) x 15 inches (width) x 12 inches (height) |
| Weight | Estimated 25-30 pounds based on similar models |
| Power Source | Manual operation with optional battery-powered vent fan |
| Capacity | Designed for multiple uses between compost emptying (specific volume not provided) |
There was a moment during my first setup where I realized how thoughtfully designed the Nature’s Head® Self Contained Composting Toilet Foot-Spider really is. The sturdy foot-based platform immediately caught my eye, making it feel more like a natural part of the process rather than just another toilet.
You can tell it’s built to handle frequent use without wobbling or feeling flimsy.
Once I sat down, the comfort of the seat surprised me—it’s well-shaped, not too hard, and fits perfectly with the foot-spider design. The entire unit feels compact yet surprisingly spacious inside, which is a relief for those long, regular uses.
Setup was straightforward, and the materials feel durable, so I don’t worry about wear and tear over time.
Using it is simple: the foot-spider makes it easy to position yourself without slipping, even if your hands are busy or dirty. The odor control system works quite well, thanks to the ventilation setup, which keeps things fresh even after extended use.
Plus, I appreciate how easy it is to empty and clean, making maintenance a breeze without any harsh chemicals.
One thing that stood out is how eco-friendly this split system really is. It’s perfect for off-grid cabins, tiny homes, or anywhere you want to reduce water use.
The price tag is hefty, but considering the quality and environmental benefits, it feels justified. Overall, this toilet genuinely lives up to its reputation as one of the best split composting systems out there.
Toilet Sawdust Compost Kit with Biodegradable Bags
- ✓ Excellent odor control
- ✓ Easy to use and refill
- ✓ Natural, chemical-free
- ✕ Not ideal for long-term composting
- ✕ Limited quantity per pack
| Material | Untreated natural wood (sawdust) |
| Bag Capacity | 8 gallons per biodegradable bag |
| Number of Bags Included | 4 biodegradable bags |
| Litter Type | Natural sawdust, loose, fine and absorbent |
| Odor Control | Locks in moisture and odors through high absorbency |
| Intended Use | Portable, off-grid composting toilets, camping, RV, boat |
Finally getting my hands on the LEIFIDE Toilet Sawdust Compost Kit felt like crossing off a major item from my outdoor gear wishlist. When I opened the box, I immediately appreciated how compact and straightforward everything looked.
No complicated setup—just two bags of natural sawdust litter and four biodegradable 8-gallon bags ready to go.
Using it for a few camping trips, I was impressed by how quickly the sawdust absorbed moisture and odors. It’s fine, loose, and spreads evenly, which really helps with airflow inside the composting toilet.
No more worrying about lingering smells or moisture buildup—this stuff locks in everything fast.
What I liked most is how natural and chemical-free it is. It’s made from untreated wood, so I feel good about using it in off-grid setups or on boats.
Plus, the biodegradable bags made cleanup super easy—just toss and go, without any mess or waste of space.
It’s a simple but smart solution for anyone who needs reliable odor control on the go. Whether camping, RVing, or living off-grid, this kit keeps the bathroom fresh and hygienic without any fuss.
I also appreciate how it’s an all-in-one refill, saving me time and trips to the store.
Overall, this kit delivers on its promise of odor control and easy maintenance. It’s not perfect for heavy use or long-term composting, but for portable needs, it’s a game-changer.
Just pack extra bags if you’re headed out for days—otherwise, it’s a solid, natural choice.
What is a Split System Composting Toilet?
A split system composting toilet is a type of toilet that separates solid and liquid waste for more efficient composting and waste management. This system typically consists of two components: a toilet fixture where users deposit waste, and a separate composting unit that processes the solid waste. The design allows for improved aeration and moisture control in the composting process, ultimately leading to a more effective composting system.
According to the U.S. Environmental Protection Agency (EPA), composting toilets can reduce water usage and provide an environmentally friendly solution for waste management in areas without adequate sewage infrastructure (EPA, 2020). The split system design enhances the composting process by allowing liquid waste to be processed separately, which can help reduce odors and control the moisture content in the composting material.
Key aspects of split system composting toilets include their ability to minimize water usage, as they often require no water or significantly less than traditional flush toilets. Additionally, the separation of liquid and solid waste allows for more effective composting conditions—liquid waste can be managed to avoid leaching and solid waste can decompose more thoroughly. Many models also feature ventilation systems to further reduce odors and promote aerobic decomposition.
This technology impacts both environmental sustainability and resource conservation. For instance, the use of composting toilets can dramatically decrease the strain on municipal sewage systems, particularly in rural or off-grid areas where traditional plumbing is impractical. Statistics from the Water Environment Federation indicate that composting toilets can conserve up to 20,000 gallons of water per household annually, significantly reducing water consumption and the associated costs.
The benefits of split system composting toilets include lower environmental impact, reduced water bills, and the potential to produce nutrient-rich compost that can be used for gardening and landscaping. These systems are ideal for eco-conscious individuals and communities looking to implement sustainable practices. They are also suitable for tiny homes, cabins, and recreational vehicles where space and water supply may be limited.
Best practices for utilizing split system composting toilets include regular maintenance, such as adding carbon-rich materials (like sawdust or straw) to the composting chamber to facilitate aeration and decomposition. Users should also ensure proper ventilation and follow the manufacturer’s guidelines for waste management to ensure effective composting and odor control. By adopting these practices, users can maximize the efficiency and benefits of their composting toilet system.
What Are the Key Benefits of Using a Split System Composting Toilet?
The key benefits of using a split system composting toilet include efficiency, reduced water usage, and ease of maintenance.
- Water Conservation: Split system composting toilets use little to no water for flushing, making them an eco-friendly choice. This feature is particularly advantageous in areas where water scarcity is a concern, helping to conserve a precious resource.
- Odor Control: The design of split system toilets separates the solid and liquid waste, which helps to minimize odors. This separation allows for more effective composting of solid waste and reduces the chances of unpleasant smells, making them suitable for indoor and outdoor use.
- Composting Efficiency: These toilets promote a more efficient composting process by allowing solid waste to be composted in a dedicated chamber. This leads to a faster breakdown of waste into nutrient-rich compost, which can be used to enrich soil in gardens.
- Space-Saving Design: Split system composting toilets often have a compact and modular design, making them ideal for small spaces. The ability to place the composting unit away from the toilet can also provide flexibility in installation and use.
- Low Maintenance: While traditional toilets require regular plumbing maintenance, split system composting toilets typically require less upkeep. With proper usage and occasional maintenance, users can enjoy a reliable waste management system without frequent repairs.
- Environmentally Friendly: By converting human waste into compost, these toilets contribute to sustainability efforts. They reduce the amount of waste sent to landfills and provide a natural fertilizer option, thus promoting eco-friendly practices in waste management.
How Does a Split System Composting Toilet Work?
A split system composting toilet is an efficient and eco-friendly solution for managing human waste, featuring separate compartments for solids and liquids.
- Composting Chamber: This is the main component where solid waste is collected and decomposed through aerobic processes.
- Urine Diverter: This component separates urine from feces, directing the liquid waste away from the solids for easier processing and odor control.
- Ventilation System: A crucial feature that promotes airflow in the composting chamber, aiding in the breakdown of waste and reducing odors.
- Composting Material: Often includes sawdust, peat moss, or other carbon-rich materials added to the chamber to facilitate decomposition and manage moisture levels.
- Collection and Maintenance: Process for regularly emptying the composted material and maintaining the system to ensure optimal functioning.
The composting chamber is designed to hold solid waste and encourage microbial activity that breaks down the material into compost. This process typically takes several months, resulting in a nutrient-rich soil amendment that can be used in gardening, provided it is adequately processed.
The urine diverter plays a significant role in enhancing the efficiency of a split system composting toilet. By separating liquids from solids, it minimizes moisture in the composting chamber, thus speeding up the composting process and significantly reducing odors.
The ventilation system often utilizes a fan or natural airflow to circulate air within the composting chamber. This airflow is essential for aerobic bacteria to thrive, which helps break down waste and keeps unpleasant smells at bay, making the toilet more pleasant to use.
Composting material such as sawdust or peat moss is added to the composting chamber to absorb moisture and provide carbon, which is crucial for the composting process. This material helps maintain an ideal carbon-to-nitrogen ratio, promoting efficient decomposition while also controlling odors.
Collection and maintenance involve periodically emptying the composted material from the chamber once it has fully decomposed, typically every few months to a year, depending on usage. Regular maintenance also includes checking the urine diverter and ventilation system to ensure they are functioning properly and preventing clogs or odors.
What Important Features Should You Look for in a Split System Composting Toilet?
When considering the best split system composting toilet, several important features should be evaluated to ensure efficiency and convenience.
- Ease of Installation: Look for a toilet that offers straightforward installation, with clear instructions and necessary hardware included. A system designed for DIY setups can save both time and money, making it more accessible for users without extensive plumbing experience.
- Odor Control: Effective odor control mechanisms are crucial for a pleasant user experience. High-quality composting toilets typically include features such as ventilation fans or charcoal filters that help eliminate odors, making the environment more comfortable.
- Composting Efficiency: The efficiency of the composting process is vital for a successful system. Look for toilets that promote aerobic decomposition through proper airflow and moisture control, ensuring that waste breaks down quickly and effectively.
- Capacity: The capacity of the composting chamber should match your household needs. A larger chamber can accommodate more waste, reducing the frequency of emptying, while a smaller unit might be suitable for occasional use, such as in a guest house or cabin.
- Material Quality: The materials used in the construction of the toilet impact its durability and maintenance. Models made from high-quality, corrosion-resistant materials are preferable, as they will last longer and be easier to clean and maintain.
- Maintenance Requirements: Consider how often the toilet will need to be cleaned and emptied. A user-friendly design that minimizes maintenance tasks will enhance the overall experience, allowing for more time enjoying your composting toilet rather than managing it.
- Size and Design: The size of the toilet should fit your available space while ensuring comfort. A compact yet ergonomically designed toilet can provide a comfortable experience without taking up unnecessary room.
- Water Usage: Evaluate whether the system uses water for flushing or is entirely dry. Dry composting toilets are more eco-friendly, while those that incorporate water may offer a different user experience and may require plumbing considerations.
What Are Some of the Best Brands for Split System Composting Toilets?
Some of the best brands for split system composting toilets include:
- Nature’s Head: Nature’s Head is renowned for its compact and efficient design, making it ideal for boats, RVs, and small homes. Its unique venting system minimizes odors and maximizes composting efficiency, providing ease of use and maintenance.
- Sun-Mar: Sun-Mar offers a variety of models that cater to different needs and space requirements, all while ensuring effective waste treatment. Their split system toilets feature an advanced composting process that promotes aerobic breakdown, reducing the volume of waste significantly.
- BioLet: BioLet toilets are designed for both ease of installation and user comfort, with a range of models that suit various settings from urban homes to rural cabins. Their innovative design includes a fan-assisted drying system that helps in odor control and speeds up the composting process.
- Envirolet: Envirolet specializes in eco-friendly composting toilets that are easy to use and maintain. Their systems incorporate a unique separation of liquids and solids, enhancing composting efficiency and reducing the need for frequent emptying.
- OGO: OGO toilets are known for their modern design and user-friendly features, making them a great choice for contemporary homes. They utilize a patented composting technology that ensures odor-free operation and efficient waste breakdown.
What Are the Maintenance Requirements for Split System Composting Toilets?
The maintenance requirements for split system composting toilets are essential for ensuring their efficiency and hygiene.
- Regular Emptying: It is crucial to empty the composting chamber periodically, typically every few months, depending on usage. This prevents the chamber from becoming overfilled, which can lead to odors and inefficiencies in the composting process.
- Monitoring Moisture Levels: Maintaining the right moisture level in the composting chamber is vital for effective decomposition. Users should check the moisture content regularly and add carbon-rich materials like sawdust or peat if it becomes too wet.
- Cleaning the Urine Diverter: The urine diverter must be cleaned regularly to prevent blockages and odors. A simple rinse with water and a mild detergent can keep it functioning properly and ensure that urine is directed away from the composting chamber.
- Conditioning the Compost: To facilitate composting, it is important to mix the materials within the composting chamber occasionally. This aeration helps speed up the decomposition process and prevents anaerobic conditions that can cause foul smells.
- Pest Control: Regular checks for pests, such as rodents or insects, should be conducted. Ensuring that the composting toilet is sealed properly and that the composting material is maintained can help deter pests.
- Inspecting and Maintaining Seals: The seals and gaskets on the toilet should be inspected regularly for wear and tear. Replacing these seals as needed helps prevent leaks and odors from escaping.
How Do Split System Composting Toilets Compare to Other Types of Toilets?
| Type | Maintenance | Water Usage | Cost | Environmental Impact | Lifespan | User Experience | Installation |
|---|---|---|---|---|---|---|---|
| Split System Composting Toilet | Requires regular emptying of compost and occasional cleaning. Low maintenance overall. | Uses minimal water, often none for flushing. | Initial cost can be higher, but savings on water bills over time. | Reduces waste and can create compost; eco-friendly. | 15-20 years with proper maintenance. | Generally odor-free with proper ventilation. | Requires more effort; involves separate composting chamber. |
| Conventional Toilet | Requires regular plumbing maintenance and cleaning. Higher maintenance needs. | Uses significant water per flush, typically 1.6 gallons or more. | Lower initial cost, but higher ongoing water costs. | High water usage contributes to environmental strain. | 10-15 years with regular maintenance. | Familiar experience; potential for odors if not maintained. | Easy installation; widely available. |
| Incinerating Toilet | Requires electricity for operation and periodic waste disposal. Moderate maintenance. | Uses no water, but electricity costs can be high. | High initial cost and operational costs due to electricity. | Burns waste, reducing volume; emissions need to be managed. | 10-15 years depending on usage. | Odor can be an issue if not functioning properly. | Requires a power source; more complex installation. |