For greenhouse growers looking to incorporate composting toilets, choosing the right model involves balancing odor control, ease of use, and maintenance. The Trobolo WandaGO stands out as the best overall due to its portability and adjustable height, ideal for flexible greenhouse setups. The Separett Villa offers excellent urine separation for odor reduction, making it perfect for those prioritizing smell control. Meanwhile, the Sun-Mar Compost Sure Green provides a more traditional, self-contained composting experience for permanent installations. The main tradeoffs involve balancing cost, complexity, and capacity—read on for a detailed breakdown of these options and how to pick the right one for your greenhouse needs.
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Key Takeaways
- Top-ranked models combine effective odor control with ease of maintenance, making them suitable for greenhouse environments.
- Urine separation features are crucial for reducing smells and speeding composting, especially in enclosed or semi-enclosed greenhouses.
- Portability and adjustable designs are valuable for flexible setups or temporary greenhouse use.
- Higher-priced options tend to offer better build quality and more advanced odor management, but simpler models can work for small-scale or seasonal use.
- Many products include DIY kits or detailed guides, highlighting the importance of user familiarity with composting principles.
More Details on Our Top Picks
TROBOLO WandaGO Composting Toilet, Portable Outdoor Camping Toilet, Urine Diverting Dry Toilet with Height Adjustment
The TROBOLO WandaGO stands out for its lightweight, compact design, making it ideal for those who need a portable solution outside a greenhouse environment. Unlike bulkier models like the Xastro Complete Kit, this toilet is easy to carry and store, but its limited capacity means it’s best suited for short-term or occasional use rather than continuous, heavy-duty applications within a greenhouse. Its adjustable seat height and odorless operation enhance user comfort and convenience. However, it requires manual cleaning and isn’t designed for long-term waste storage, which could be a drawback in a greenhouse setting where continuous composting is desired. Best for gardeners or hobbyists needing a portable, odorless option who prioritize ease of transport. Skip if you need a high-capacity, permanent installation.Pros:- Lightweight and highly portable for outdoor use
- Adjustable, ergonomic seat enhances comfort
- Odorless operation with spill-proof design
Cons:- Limited number of uses before needing to empty
- Manual cleaning required, less suitable for long-term use
Best for: Gardeners or hobbyists needing a portable, odorless option
Not ideal for: Greenhouse operators requiring long-term, high-capacity composting solutions
- Dimensions:12.3” (H) x 15.0” (D) x 13.4” (W)
- Weight:10.4 lbs
- Seat Height:12.0” or 17.2”
- Supports:up to 330.7 lbs
- Uses:10-20 urination uses, 8-12 defecation uses
Our verdict“This pick makes the most sense for users who need a lightweight, odorless portable toilet for occasional or outdoor use in a greenhouse setting.”
Upgraded Large Composting Toilet Urine Diverter DIY Kit with Stainless Steel Sink Lid and Drain Hose
This DIY urine diverter kit offers a large, comfortable opening and durable ABS construction, making it ideal for customizing a composting toilet system within a greenhouse. Compared to the Xastro Complete Kit, it provides a more flexible, tailored setup, but requires basic DIY skills and some effort to install. The included cutting template simplifies the process, yet the need for precise fitting might challenge novice users. It’s best suited for those comfortable with DIY projects and wanting a tailored, hygienic diverter for composting applications. It’s less ideal for users seeking a ready-made, plug-and-play solution. Best for experienced DIYers building or upgrading composting systems in greenhouses who value customization over convenience.Pros:- Large, comfortable opening enhances hygiene
- Made from durable, easy-to-clean ABS material
- Complete kit with all necessary components and cutting guide
Cons:- Requires basic DIY skills for installation
- Designed mainly for custom builds, may not fit all models
Best for: Experienced DIYers installing or upgrading composting systems in greenhouses
Not ideal for: Beginners or those seeking a quick, pre-assembled solution
- Opening Size:365×276mm (14.37″×10.87″)
- Material:ABS plastic
- Includes:Urine diverter, metal filter screen, discharge hose, cutting template
- Compatible Uses:Composting toilets, RVs, boats, pet shops, outdoor and indoor sanitation
Our verdict“This kit is designed for experienced DIYers aiming for a customized, hygienic composting toilet setup in a greenhouse environment.”
Sun-Mar Compost Sure Green
The Sun-Mar Compost Sure Green excels at maintaining a healthy, odor-free composting process thanks to its coarse peat moss and agricultural biomass blend. Compared with the Essential Composting Toilets guide, this product offers a tangible material that helps keep compost aerated and moist, which is vital for continuous, odorless operation in a greenhouse. It’s especially suited for self-contained or waterless composting toilets where maintaining porosity and organic carbon is essential. However, it’s a specialized product, making it less versatile outside composting systems. Its moisture content of 40-60% ensures the compost remains aerobic but requires careful management. Best for greenhouse operators seeking to optimize compost quality and odor control in their self-contained systems.Pros:- Helps maintain aerobic, odor-free composting
- Enriches compost with organic carbon
- Designed specifically for water-free composting toilets
Cons:- Limited to composting applications, not versatile for other uses
- Requires proper moisture management for best results
Best for: Greenhouse operators using self-contained or water-free composting toilets seeking to improve compost quality
Not ideal for: Users needing a multipurpose soil amendment or a non-composting application
- Material:Peat moss and agricultural biomass
- Purpose:Maintain porosity, hold moisture, enrich compost
- Moisture Content:40-60%
Our verdict“This bulking material is ideal for those focused on maintaining healthy, odorless compost in greenhouse composting toilets.”
Essential Composting Toilets: A Guide to Options, Design, Installation, and Use
This comprehensive guide provides valuable insights into selecting, designing, and installing composting toilets, making it a useful resource for those planning to incorporate such systems into a greenhouse. Unlike physical products like the Xastro Kit, this book offers in-depth information on various options and best practices, but it doesn’t provide any hardware or direct installation support. It’s perfect for eco-conscious builders or hobbyists wanting a thorough understanding before investing in equipment. For immediate setup, this resource must be paired with actual products. Best for those interested in detailed planning and sustainable building principles rather than quick installations.Pros:- Detailed information on options and design considerations
- Guidance on installation and use
- Excellent resource for sustainable building projects
Cons:- No physical product or direct hardware included
- Limited to informational content, not a practical kit
Best for: Eco-conscious builders or hobbyists interested in detailed planning of composting toilets
Not ideal for: Those needing ready-to-install products or quick solutions
Our verdict“This book is perfect for those seeking to understand and plan composting toilet systems within a greenhouse or sustainable project.”
Xastro Complete Composting Toilet Kit with Urine Diverter & Toilet Seat
The Xastro Complete Kit offers a comprehensive, easy-to-install solution with a durable ABS construction, large opening, and all necessary components included. Compared with the Upgraded Large DIY Kit, it simplifies the setup process, making it accessible for users who prefer an all-in-one package. Its pre-drilled holes reduce customization flexibility but streamline installation. This kit is well-suited for off-grid living, greenhouses, or cabins where a reliable, odor-controlled composting toilet is needed without extensive DIY work. However, the need for assembly and the absence of additional ventilation features could limit performance in very humid or large-scale applications. Best for users who want a complete, easy-to-install composting toilet for greenhouse or off-grid use with minimal customization effort.Pros:- All-in-one kit with everything needed for installation
- Durable, easy-to-clean mirror-finish ABS construction
- Large opening for user comfort
Cons:- Requires some cutting and assembly, which may challenge some users
- Pre-drilled holes limit customization options
Best for: Users seeking a complete, easy-to-install composting toilet kit for greenhouse or off-grid applications
Not ideal for: Those requiring a highly customizable system or advanced ventilation options
- Opening Size:365mm x 276mm
- Material:Mirror-finish ABS
- Includes:Urine Diverter, Toilet Seat, Metal Filter Screen, Discharge Hose, Instructions
- Application:RVs, cabins, boats, tiny homes, off-grid living
Our verdict“This kit is ideal for those who want a straightforward, reliable composting toilet setup with minimal fuss in a greenhouse environment.”
OGO Origin Urine-Diverting Composting Toilet – Odorless 12V RV & Van Toilet
This sleek, modern toilet excels in tight greenhouse corners or small off-grid setups, thanks to its compact 15″x16″ footprint and urine-diverting system for odor control. Unlike bulkier options like the Xastro Kit, it offers a quiet, odorless experience suitable for enclosed greenhouse environments. The electric push-button agitator simplifies maintenance, but it does require a 12V power source, which may complicate installations in some greenhouses without reliable electricity. Its limited urine capacity of 2.4 gallons means frequent emptying in high-use scenarios, making it less ideal for larger or more active setups. Compared with manual systems, this model provides greater convenience and hygiene, but at a higher cost and dependency on power. This pick makes the most sense for growers who prioritize space-saving, odorless operation, and have reliable power access.
Pros:- Compact size fits tight spaces and corners
- Odorless operation with urine-diverting system
- Electric push-button agitator for ease of use
Cons:- Requires 12V power source, which may limit placement
- Limited urine capacity of 2.4 gallons necessitates frequent emptying
Best for: Small greenhouse setups where space is limited and reliable power is available, especially for off-grid or mobile applications.
Not ideal for: Large-scale greenhouse operations or environments without consistent 12V power, due to its limited capacity and power dependency.
- Footprint:15″x16″
- Capacity:2.4 gallons for urine
- Uses:25–30 uses
- Power:12V
- Material:Polypropylene
Our verdict“This toilet suits growers needing a space-efficient, odorless solution with minimal maintenance where power is accessible.”
Leifide 1.76 Pounds Composting Toilet Sawdust – All Natural, No Chemicals
This lightweight sawdust product is ideal for those seeking a chemical-free, organic approach to composting in greenhouses or small portable toilets. Its all-natural wood shavings accelerate decomposition while reducing odors, making it a good match for DIY composting setups. Compared with the more complex systems like the Xastro Kit, it requires manual mixing and frequent replenishment, which may be less convenient for long-term greenhouse operations. Its lightweight design (just 1.76 pounds) makes it easy to store and handle, but this also means it’s not suitable for large or high-use scenarios. The need for multiple packs to sustain larger setups adds to ongoing costs. It’s a solid choice for growers committed to chemical-free composting, but less so for commercial-scale or automated systems.
Pros:- All-natural, chemical-free formula
- Effective in accelerating compost decomposition
- Lightweight and easy to handle
Cons:- Limited to small-scale or portable use
- Requires multiple packs for extensive use
Best for: Gardeners and small-scale greenhouse operators who prioritize natural, chemical-free composting materials and are comfortable with manual handling.
Not ideal for: Large or high-frequency greenhouse operations that require more robust or automated composting solutions, due to limited volume and manual handling.
- Weight:1.76 pounds
- Material:100% organic sawdust and shavings
- Application:Home-built, camping, small public toilets
Our verdict“This sawdust is best for eco-conscious growers with small or hobby-scale greenhouse projects seeking natural composting materials.”
Composting Toilet System Book: A Practical Guide to Choosing, Planning and Maintaining Composting Toilet Systems
This comprehensive guide stands out for its detailed advice on selecting and maintaining composting systems, making it a valuable resource for those new to greenhouses or seeking sustainable waste solutions. Unlike specific product reviews like the Xastro Kit, it offers broad insights applicable across many models and setups. It covers everything from basic planning to long-term maintenance, but it doesn’t provide technical specifications or direct product comparisons, limiting its use for immediate system selection. Growers interested in understanding principles and best practices will find it helpful, though it won’t replace hands-on product research. It’s a good starting point for those wanting to build or manage their own composting toilet in a greenhouse context.
Pros:- Provides practical and detailed guidance
- Covers eco-friendly waste management principles
- Suitable for both beginners and experienced users
Cons:- No specific product features or specifications
- Limited information on actual systems or models
- No customer reviews or ratings
Best for: Beginners and planners seeking foundational knowledge and step-by-step guidance on composting toilet systems for greenhouses.
Not ideal for: Experienced users looking for detailed product specifications or ready-to-install solutions, since it offers general guidance rather than specific models.
Our verdict“This book is a helpful starting point for gardeners planning to include composting toilets in their greenhouse, emphasizing understanding and proper setup.”
Composting Toilets for Off-Grid Living: A Beginner’s DIY Building Manual
This manual offers clear, step-by-step instructions perfect for eco-minded growers interested in building their own composting toilets for greenhouses. Unlike the more general guides like the Compost Toilet Handbook, it emphasizes practical construction and customization, making it suitable for those with basic carpentry skills. While it provides a solid foundation, it lacks detailed specifications or product recommendations, which could be a drawback for those seeking ready-made solutions. Its focus on DIY construction makes it ideal for small-scale, off-grid greenhouses where customization and cost savings matter, but less suitable for larger operations needing turnkey systems. This manual makes eco-friendly, self-built solutions approachable for dedicated growers willing to put in the effort.
Pros:- Easy-to-follow DIY instructions
- Eco-friendly and sustainable approach
- Suitable for off-grid greenhouses
Cons:- No detailed specifications or product recommendations
- Requires basic carpentry skills
Best for: Greenhouse owners interested in DIY, sustainable, off-grid composting toilet projects who have basic carpentry skills.
Not ideal for: Growers seeking plug-and-play systems or detailed product specifications, since it focuses solely on DIY construction methods.
Our verdict“This manual is perfect for eco-conscious growers eager to build their own composting toilet tailored to off-grid greenhouse needs.”
The Compost Toilet Handbook
This handbook delivers thorough guidance on installing and maintaining compost toilets, standing out for its practical advice applicable across a variety of models. Unlike the more specific products like the Leifide Sawdust, it covers broad principles that benefit growers new to composting systems in greenhouses. The lack of detailed specifications or direct product comparisons means it’s less useful for technical decision-making but excellent for understanding system upkeep and benefits. It’s especially valuable for those who want a comprehensive understanding of eco-friendly waste management without being tied to a particular brand. This book suits anyone looking to deepen their knowledge of compost toilet operation in the greenhouse setting.
Pros:- Provides detailed instructions on setup and maintenance
- Covers benefits of eco-friendly waste systems
- Suitable for both beginners and experienced users
Cons:- No specific product features or specifications
- Limited information on different models or brands
Best for: Growers seeking a comprehensive guide on installation, use, and benefits of composting toilets, especially beginners or those maintaining multiple systems.
Not ideal for: Users seeking specific product recommendations or technical specifications, as it offers broad guidance rather than detailed system reviews.
Our verdict“This handbook is a valuable resource for greenhouse growers wanting to understand and properly maintain composting toilets without focusing on particular products.”
Separett Villa Urine-Separating Compost Toilet
The Separett Villa stands out for its waterless operation, making it perfect for remote greenhouse setups where water supply is limited. Unlike the Upgraded Large Composting Toilet DIY Kit, which requires assembly and customization, the Villa offers a ready-to-use, low-maintenance solution that effectively separates urine for off-site disposal. Its spacious design allows for extended use without frequent emptying, but it may require some initial planning to ensure proper installation in your greenhouse. While the Villa conserves water and avoids chemical additives, it doesn’t specify advanced odor control features, which could be a concern for enclosed greenhouse environments. This makes it a strong choice for growers prioritizing sustainability and minimal upkeep.
Pros:- Waterless operation significantly reduces water consumption
- Spacious design allows for extended use without frequent emptying
- No chemical additives or complex maintenance required
- Versatile installation options for off-grid or remote spaces
Cons:- May require careful initial setup for specific installation sites
- Limited information on odor control features
Best for: Off-grid greenhouse operators seeking a reliable, waterless composting toilet that minimizes maintenance.
Not ideal for: Growers in enclosed, highly sensitive greenhouse environments where odor control and odor masking are critical, as it lacks detailed odor management features.
- Type:Urine-Separating Compost Toilet
- Water Requirement:Waterless
- Capacity:High-capacity design
- Installation:Versatile options for off-grid spaces
Our verdict“This toilet is best suited for off-grid growers prioritizing water savings and simple maintenance over advanced odor control.”
Upgraded Large Composting Toilet Urine Diverter&Toilet Seat DIY Kit,Complete Wrap-Around Urine Separator with Stainless Steel Sink Lid,Drain Hose and Cutout Sticker, ABS Material for Composting Toilet
This DIY kit offers a wide, 14.37″×10.87″ surface that comfortably accommodates larger users and prevents waste sticking, making it ideal for busy households or communal greenhouse setups. Compared with the Sun-Mar Compost Sure Green, which comes as a ready-made unit, this kit provides a customizable solution that can be tailored to your specific space and user needs, potentially saving money on larger, pre-fabricated models. The included cutting template simplifies installation, but it requires some DIY skill and tools, which might not suit everyone. The non-stick ABS surface is easy to clean and resistant to staining, though it may not be as durable long-term as ceramic or stainless steel options. It excels for those wanting a budget-friendly, adaptable composting toilet that can be integrated directly into a greenhouse workspace.
Pros:- Extra-large opening provides comfort for larger users
- Non-stick, easy-to-clean ABS surface saves time on maintenance
- Includes detailed cutting guide for precise DIY installation
- Cost-effective alternative to pre-made units
Cons:- Requires basic DIY skills and tools for installation
- Lacks integrated odor control features, which might need additional solutions
Best for: Homeowners or greenhouse growers wanting a customizable, easy-to-install composting toilet solution for larger or shared use.
Not ideal for: Individuals seeking a plug-and-play, maintenance-free composting system or those uncomfortable with DIY installation steps, as it demands some manual work and precision.
Our verdict“This kit is ideal for DIY enthusiasts and larger users seeking a customizable, budget-friendly composting toilet for greenhouse use.”
How We Picked
Products were evaluated based on performance in odor control, ease of installation and maintenance, durability, capacity, and value for money. We prioritized models with user-friendly features suitable for greenhouse environments, weighing the tradeoff between complexity and convenience. The ranking reflects a balance of practical usability, longevity, and affordability, aiming to recommend options for different greenhouse sizes and user experience levels. Our selection includes both portable units for flexible setups and permanent installations for dedicated greenhouses, ensuring a broad relevance for various growers.Factors to Consider When Choosing Composting Toilets In Greenhouses
Choosing the right composting toilet for a greenhouse involves understanding several key factors that influence functionality, maintenance, and integration with your growing setup. Beyond basic features, buyers should consider how the unit manages odors, ease of use, and the type of composting system. A thoughtful approach can prevent common mistakes like underestimating capacity or overlooking ventilation needs. The right model aligns with your greenhouse size, greenhouse climate, and your experience with composting systems, making maintenance straightforward and odor manageable.Odor Control and Ventilation
Effective odor management is fundamental in a greenhouse setting to prevent unpleasant smells from affecting plant health and worker comfort. Look for models with urine separation, ventilation fans, or odor-absorbing materials. Proper ventilation is especially critical in enclosed greenhouses where air circulation is limited. Poor odor control can quickly lead to uncomfortable conditions and discourage continued use, so prioritize systems with reliable odor mitigation features.
Ease of Installation and Maintenance
Greenhouse owners often prefer models that are straightforward to install and maintain, especially if they lack extensive plumbing skills. Portable units or DIY kits can be appealing, but they may require more frequent cleaning or adjustments. Consider how accessible the composting chamber is, whether filters or ventilation parts are replaceable, and if the design minimizes mess. Simpler maintenance routines reduce downtime and keep the system functioning smoothly over seasons.
Capacity and Size
Size and capacity vary widely among composting toilets, influencing how often you’ll need to service the unit. Small setups or seasonal greenhouses may only need compact models, while year-round or larger operations require higher capacity systems. Overestimating capacity can lead to unnecessary expense and complexity, while underestimating can cause overflow or frequent servicing. Match the unit size to your greenhouse’s usage patterns to optimize performance and convenience.
Durability and Material Quality
Greenhouse environments often involve exposure to moisture, so choosing a durable, weather-resistant model is wise. Materials like high-grade plastics or stainless steel tend to last longer and resist corrosion. Cheaper, lower-quality units might save money upfront but could require replacement sooner, adding to long-term costs. Prioritize units with solid construction to ensure they withstand seasonal changes and regular handling.
Cost and Value
Budget constraints influence many buying decisions, but it’s important to weigh cost against features and durability. While inexpensive models may seem attractive initially, they often lack advanced odor control or capacity. Conversely, premium options offer enhanced features but come at a higher price. Focus on what features are most important for your greenhouse, balancing upfront investment with long-term usability and maintenance costs.
Frequently Asked Questions
How often do I need to empty or service a composting toilet in a greenhouse?
The frequency of emptying depends on the size of the unit and the number of users or plants feeding into it. Small portable models may require emptying every few weeks during active use, while larger systems designed for continuous operation can last several months. Regular inspection and maintenance—such as removing finished compost and checking ventilation—help prevent odors and ensure smooth functioning. Planning for seasonal or annual servicing is also advisable, especially in high-traffic or humid greenhouse environments.
Can I install a composting toilet directly in my greenhouse without additional plumbing?
Many composting toilets are designed for minimal plumbing, making them suitable for greenhouse installation without extensive piping. Portable and DIY models often only need a vent and a drain hose for liquids, which can be routed outside or into a compost bin. Permanent systems may require venting kits and proper siting to allow for airflow and odor control. Always consider how the unit integrates with your greenhouse layout and whether additional ventilation or drainage is needed for optimal performance.
Are composting toilets in greenhouses suitable for year-round use?
Yes, but with some caveats. Proper insulation and ventilation are key to maintaining odor control and preventing freezing in colder climates. Many models are designed for outdoor use, but ensuring they are protected from extreme weather enhances longevity. In colder months, additional insulation or heated ventilation may be necessary to keep composting processes active and odor-free. For year-round use, select a model with robust construction and consider supplementing with climate control features.
What is the typical lifespan of a composting toilet in a greenhouse setting?
The lifespan varies depending on build quality, usage, and maintenance. Well-made units with durable materials can last over a decade with proper care, while cheaper models might need replacement sooner—often within 3-5 years. Regular maintenance, such as replacing filters and cleaning components, extends the life of the system. Investing in higher-quality models generally offers better longevity and reduces long-term replacement costs, especially in a demanding greenhouse environment.
How much do composting toilets in greenhouses typically cost?
Prices range from around $200 for basic portable units to over $2,000 for high-end, permanent systems with advanced odor control and capacity. Budget models work well for small or seasonal greenhouses, but they may lack features like urine separation or high durability. Premium options tend to include more sophisticated ventilation, better materials, and larger capacities, making them more suitable for continuous, year-round use. Consider your greenhouse size, usage frequency, and long-term maintenance when selecting a model within your budget.
Conclusion
For greenhouse owners prioritizing flexibility and portability, the Trobolo WandaGO offers a great balance of features and ease of use. Those seeking odor control for permanent installations should consider the Separett Villa for its urine separation system. Beginners or seasonal growers will find the Sun-Mar Compost Sure Green simple to set up and maintain. Budget-conscious buyers can opt for basic DIY kits, while dedicated greenhouse operators investing in durability and advanced features should look at premium models with robust ventilation and capacity. Tailor your choice to your greenhouse size, climate, and experience level to find the best fit.
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