The Separett Tiny is my best overall pick for a tiny house because its urine-separating design suits compact living without requiring a bulky conventional toilet setup. The Sun-Mar GTG stands out for a waterless, space-conscious installation, while the Separett Villa is a stronger candidate for households prioritizing a more permanent fixture. The main tradeoffs are footprint, electrical needs, waste-container capacity, and how often you are willing to empty and clean the system. Portable models can suit flexible layouts but may call for more hands-on waste management. Read on for my full comparison of 13 tiny house composting toilets and the buyer factors that separate them.
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Key Takeaways
- Urine separation is a defining difference: Several Separett, OGO, Sun-Mar, and portable models separate liquids from solids, which changes how waste is handled and how often each container needs attention.
- Compact does not always mean portable: The Separett Tiny and OGO Origin target tight installations, while the Cuddy Lite, OGO NOMAD, and TROBOLO WandaGO put more emphasis on portability.
- Electrical features add installation demands: Models with fans, heaters, or powered mixing can offer more active waste management, but buyers need to plan for a reliable power source and additional components.
- Handle and seat design matter in confined rooms: Nature’s Head offers two handle configurations, so the available clearance around the toilet can affect which version fits better.
- Capacity and service access can outweigh extra features: A toilet that fits the floor plan still needs room to remove containers, clean components, and route ventilation or urine drainage.
| Sun-Mar GTG Waterless Urine-Diverting Composting Toilet |  | Best for Quick Installation | Brand: Sun-Mar | Model: GTG-011 | Water use: Waterless | VIEW LATEST PRICE | See Our Full Breakdown |
| Separett Tiny Self-Contained Urine-Separating Composting Toilet |  | Best for Waste-Level Monitoring | Brand: Separett | Model number: 1270-03 | Type: Self-contained urine-separating composting toilet | VIEW LATEST PRICE | See Our Full Breakdown |
| OGO NOMAD Portable Urine-Diverting Composting Toilet |  | Best Electricity-Free Portable Pick | Brand: OGO | Model number: nom-bas-2024 | Dimensions: 15.4 × 13 × 12.38 inches (D × W × H) | VIEW LATEST PRICE | See Our Full Breakdown |
| Separett Villa Urine-Separating Composting Toilet |  | Best for Larger Off-Grid Homes | Brand: Separett | Model number: 1255-01 | Manufacturer part number: 1123-01 | VIEW LATEST PRICE | See Our Full Breakdown |
| OGO Origin Compact Composting Toilet for Vans, RVs, and Boats |  | Best Compact Powered Option | Brand: OGO | Footprint: 15 × 16 inches | Agitator: 12V electric, push-button | VIEW LATEST PRICE | See Our Full Breakdown |
| Compo Closet Cuddy Lite Portable Composting Toilet |  | Best Compact Portable Pick | Brand: Compo Closet | Model: CUDDYLITE | Dimensions: 17 x 15.2 x 16.5 in (D x W x H) | VIEW LATEST PRICE | See Our Full Breakdown |
| Compo Closet Cuddy Composting Toilet |  | Best for Frequent Small-Space Use | Brand: Compo Closet | Model: 22022 | Capacity: 3.9 gallons | VIEW LATEST PRICE | See Our Full Breakdown |
| LECARDIO Waterless Composting Toilet with Heating Plate, Electric Mixing, Urine Separation, and Exhaust Fan |  | Best for Cold or Damp Setups | Brand: LECARDIO | Model: XY-JY | Type: Waterless composting toilet | VIEW LATEST PRICE | See Our Full Breakdown |
| Nature’s Head Self-Contained Composting Toilet with Close-Quarters Spider Handle |  | Best for Longer Emptying Intervals | Brand: Nature’s Head | Model: Spider Handle | Dimensions: 20.98 x 19.02 x 20.98 in (D x W x H) | VIEW LATEST PRICE | See Our Full Breakdown |
| LECARDIO Waterless Composting Toilet for RVs, Vans, Boats, and Tiny Houses |  | Best Feature-Rich Rotating-Top Pick | Brand: LECARDIO | Model: CT-YMX | Dimensions: 21.6 x 22.4 x 14.4 in (D x W x H) | VIEW LATEST PRICE | See Our Full Breakdown |
| Nature’s Head Self-Contained Composting Toilet with Foot-Spider Handle |  | Best for Fixed Tiny-House Installation | Model: NH030-2020 | Manufacturer part number: NH030 | Toilet type: Self-contained composting toilet | VIEW LATEST PRICE | See Our Full Breakdown |
| TROBOLO WandaGO Portable Composting Toilet |  | Best Portable Pick | Model: P1 | Dimensions: 15.0 × 13.4 × 12.3 in (D × W × H) | Weight: 10.4 lb | VIEW LATEST PRICE | See Our Full Breakdown |
| Separett Tiny Urine-Separating Composting Toilet with Urine Tube |  | Best for Reduced Urine Handling | Model number: 1271-03 | Manufacturer part number: 1271-02 | Toilet type: Waterless urine-separating composting toilet | VIEW LATEST PRICE | See Our Full Breakdown |
| tiny house composting toilet | Brand | Dimensions | Weight | Model |
|---|---|---|---|---|
| Sun-Mar GTG Waterless Urine-Di | Sun-Mar | 24 × 15.75 × 19.8 inches (D × W × H) | 25 pounds | GTG-011 |
| Separett Tiny Self-Contained U | Separett | — | — | — |
| OGO NOMAD Portable Urine-Diver | OGO | 15.4 × 13 × 12.38 inches (D × W × H) | 12 pounds | — |
| Separett Villa Urine-Separatin | Separett | 26.5 × 18 × 21.3 inches (D × W × H) | 34 pounds | — |
| OGO Origin Compact Composting | OGO | — | 28 pounds | — |
| Compo Closet Cuddy Lite Portab | Compo Closet | 17 x 15.2 x 16.5 in (D x W x H) | 12.3 kg | CUDDYLITE |
| Compo Closet Cuddy Composting | Compo Closet | 17 in D x 15.2 in W | — | 22022 |
| LECARDIO Waterless Composting | LECARDIO | 32 x 16 x 20 in (D x W x H) | — | XY-JY |
| Nature’s Head Self-Contained C | Nature’s Head | 20.98 x 19.02 x 20.98 in (D x W x H) | 28 lb | Spider Handle |
| LECARDIO Waterless Composting | LECARDIO | 21.6 x 22.4 x 14.4 in (D x W x H) | 48 lb | CT-YMX |
| Nature’s Head Self-Contained C | — | — | 12.7 kg | NH030-2020 |
| TROBOLO WandaGO Portable Compo | — | 15.0 × 13.4 × 12.3 in (D × W × H) | 10.4 lb | P1 |
| Separett Tiny Urine-Separating | — | — | — | — |
More Details on Our Top Picks
Sun-Mar GTG Waterless Urine-Diverting Composting Toilet
The Sun-Mar GTG suits tiny-house owners who want a floor-mounted, self-contained unit without a complicated setup. Its two-chamber design separates liquids from solids, helping keep routine waste handling distinct, and the included hardware kit and Compost Magic add useful setup materials. At 25 pounds, it is lighter than the Separett Villa, though its 24-inch depth still takes planning in a compact bathroom. Compared with the OGO NOMAD, the GTG is a more fixed, home-oriented choice: it needs a 12V fan and floor mounting, while the NOMAD can operate without electricity or plumbing. That fan supports ventilation, but buyers need to plan for a compatible power supply. I’d choose it for a small home or cabin with a steady installation spot, not for frequent moves.
Pros:- Separates liquid and solid waste into two chambers
- Designed for quick floor-mounted installation
- Includes Compost Magic and a hardware kit
- Waterless design suits locations without conventional plumbing
Cons:- Requires a 12V power source for its fan
- 24-inch depth may be difficult to fit in a very small bathroom
Best for: Tiny-house and cabin owners who want a floor-mounted urine-diverting toilet with included setup materials
Not ideal for: People who need a fully portable toilet or cannot provide 12V power for the ventilation fan
- Brand:Sun-Mar
- Model:GTG-011
- Water use:Waterless
- Waste separation:Two chambers for liquid and solid waste
- Fan:12V
- Dimensions:24 × 15.75 × 19.8 inches (D × W × H)
- Seat height:18 inches
- Weight:25 pounds
- Installation:Floor mounted
Our verdict“Choose the Sun-Mar GTG for a fixed tiny-house installation when quick setup and separated waste chambers matter more than portability.”
Separett Tiny Self-Contained Urine-Separating Composting Toilet
The Separett Tiny is a strong fit for a compact home where residents want clearer signals for routine emptying. Its sensor alerts when the 2-gallon urine container needs attention, while a built-in fan removes odor and moisture. That added feedback distinguishes it from the Sun-Mar GTG, whose supplied details describe separated chambers but no container-full alert. The Tiny runs on 12V or 110–240V power, giving it more power-source flexibility than a 12V-only setup, though it still depends on electricity for ventilation. Solid waste goes into separate bags, so it is not a hands-off system: owners must handle both the urine container and bagged solids. I’d favor it over the OGO NOMAD for a stationary tiny house with power, but not for someone seeking an electricity-free portable toilet.
Pros:- Sensor alerts when the 2-gallon urine container needs emptying
- Built-in fan helps remove odor and moisture
- Accepts 12V or 110–240V power
- Waterless operation suits locations without plumbing
Cons:- Urine container requires regular emptying
- Solid waste is handled in separate bags
- Ventilation relies on an electrical connection
Best for: Tiny-house residents who want a urine-container alert and access to either 12V or standard-range AC power
Not ideal for: Off-grid buyers without dependable power or owners who do not want to manage separate urine-container and bag emptying
- Brand:Separett
- Model number:1270-03
- Type:Self-contained urine-separating composting toilet
- Urine container capacity:2 gallons
- Power:12V / 110–240V
- Water required:No
- Ventilation:Built-in fan
- Solid waste handling:Separate bags
Our verdict“Pick the Separett Tiny if you want an alert for urine-container emptying and can provide power for its fan.”
OGO NOMAD Portable Urine-Diverting Composting Toilet
The OGO NOMAD stands apart for tiny-house owners who need a toilet they can also take camping or move between vehicles: it is free-standing, 12 pounds, and needs no electricity or plumbing. Its urine-diverting design and compatibility with widely available 8-gallon bags keep the basic system straightforward, while the included coco coir provides an initial composting medium. Unlike the fan-equipped Separett Tiny and OGO Origin, the NOMAD does not need power for ventilation or agitation, a useful advantage in remote setups. The tradeoff is more hands-on waste management: users need composting medium and must dispose of used bags, and only two compostable bags are included. Its 12.38-inch height also makes it more portable than a fixed-height household toilet, but may not suit everyone as a permanent daily fixture.
Pros:- Operates without electricity or plumbing
- Lightweight at 12 pounds and free-standing for easy relocation
- Uses widely available 8-gallon bags
- Urine-diverting design separates liquid and solid waste
Cons:- Requires composting medium and used-bag disposal
- Only two compostable bags are included
- Compact height may be less suitable for permanent everyday use
Best for: Tiny-house owners who also need a lightweight, electricity-free toilet for camping, boats, or remote stays
Not ideal for: Households seeking a fixed, fan-ventilated toilet or a system that avoids bag and composting-medium handling
- Brand:OGO
- Model number:nom-bas-2024
- Dimensions:15.4 × 13 × 12.38 inches (D × W × H)
- Weight:12 pounds
- Material:Polypropylene
- Installation:Free-standing
- Bag compatibility:Widely available 8-gallon bags
- Power or plumbing required:No
- Included components:2 compostable bags, coco coir, and spray bottle
Our verdict“Choose the OGO NOMAD when portability and electricity-free operation outweigh the convenience of a built-in fan or fixed home installation.”
Separett Villa Urine-Separating Composting Toilet
The Separett Villa is aimed at a different scale of tiny-house use than portable picks such as the OGO NOMAD: it is a larger, home-oriented installation for cabins, cottages, and converted buses. Its waterless, urine-separating setup requires no additives or mixing, reducing the number of routine materials and steps owners need to manage. At 26.5 inches deep and 34 pounds, it takes more space and effort to place than the Sun-Mar GTG, and the specified wall-mounted installation may constrain bathroom layout. Those dimensions make the Villa a better match for a dedicated toilet area than a multipurpose micro-bathroom. The supplied product details do not list a fan or power requirements, so I would verify ventilation and installation needs before choosing it over the fan-equipped Separett Tiny.
Pros:- Waterless operation requires no plumbing connection
- Separates urine without requiring additives or mixing
- Designed for homes, cabins, cottages, and converted buses
- Home-oriented alternative to portable models such as the OGO NOMAD
Cons:- Large 26.5-inch depth requires a dedicated installation area
- Wall-mounted installation can limit placement options
- Provided product details do not specify fan or power requirements
Best for: Owners of off-grid tiny homes, cabins, or converted buses with room for a dedicated wall-mounted toilet
Not ideal for: Buyers with very tight bathroom layouts, frequent relocation needs, or a preference for floor-mounted installation
- Brand:Separett
- Model number:1255-01
- Manufacturer part number:1123-01
- Water required:No
- Additives or mixing:Not required
- Dimensions:26.5 × 18 × 21.3 inches (D × W × H)
- Weight:34 pounds
- Seat material:PVC
- Installation method:Wall mounted
Our verdict“Choose the Separett Villa for a roomier off-grid home installation if its wall-mount requirements fit your layout.”
OGO Origin Compact Composting Toilet for Vans, RVs, and Boats
The OGO Origin balances a 15 × 16-inch footprint with powered features aimed at regular use in vans, RVs, boats, and tiny houses. Its 12V push-button agitator avoids manual cranking, while a quiet fan supports ventilation and the urine-diverting layout keeps solids drier. Compared with the electricity-free OGO NOMAD, the Origin is more suited to a permanently installed setup where 12V power and venting are available; the NOMAD is lighter and easier to relocate. The Origin’s 2.4-gallon urine bottle and stated 25–30-use solids capacity give buyers useful planning figures, but the solids bin still needs periodic emptying. At 28 pounds, it is also less convenient to move. I’d pick it for a compact powered installation, not for remote use without electricity.
Pros:- Compact 15 × 16-inch footprint fits space-conscious layouts
- 12V push-button agitator avoids manual cranking
- Quiet fan provides ventilation
- Urine-diverting design keeps solids dry
Cons:- Requires 12V power and ventilation
- Solids bin holds about 25–30 uses before emptying
- At 28 pounds, it is heavier than the portable OGO NOMAD
Best for: Van, RV, boat, and tiny-house owners with 12V power who want a compact toilet with powered agitation and ventilation
Not ideal for: Buyers who need an electricity-free portable unit or want to avoid emptying a solids bin after roughly 25–30 uses
- Brand:OGO
- Footprint:15 × 16 inches
- Agitator:12V electric, push-button
- Urine bottle capacity:2.4 gallons
- Solids capacity:25–30 uses
- Ventilation:Quiet fan
- Material:Polypropylene
- Weight:28 pounds
- Installation method:Floor mounted
Our verdict“Choose the OGO Origin for a small, powered installation when push-button agitation matters more than electricity-free portability.”
Compo Closet Cuddy Lite Portable Composting Toilet
The Cuddy Lite suits tiny houses where a toilet may need to move between a living space, vehicle, or storage spot. Its liquid-and-solids separation and removable solids bin make routine emptying more manageable than a single-container setup, while the LED liquid-full alert helps avoid an overflow. Unlike the larger, powered LECARDIO XY-JY, it can be used freestanding or floor-mounted without plumbing or mains electricity, which gives it more placement flexibility. That simplicity has a tradeoff: waste still needs manual emptying, and the indicator needs a separate 9V battery that is not included. I’d choose it for occasional or mobile use, not for buyers seeking powered mixing or a long interval between service stops.
Pros:- Portable or floor-mounted installation offers flexible placement
- Separates liquids and solids and has a removable solids bin
- LED liquid-full indicator can help prevent overfilling
- Does not require plumbing or mains electricity
Cons:- Both waste containers require manual emptying
- The 9V battery for the LED indicator is not included
- No powered fan or mixer is listed for odor management or waste handling
Best for: Tiny-house owners who need a lightweight, movable toilet and can empty separate waste containers regularly
Not ideal for: Full-time users who want powered mixing, longer service intervals, or an indicator ready to use without sourcing a battery
- Brand:Compo Closet
- Model:CUDDYLITE
- Dimensions:17 x 15.2 x 16.5 in (D x W x H)
- Weight:12.3 kg
- Material:ABS plastic
- Installation:Portable or floor-mounted
- Power:9V battery for LED indicator; battery not included
- Included components:12V power cable, bottle cap, carbon filter, googly eye stickers
Our verdict“Choose the Cuddy Lite if portability and simple installation matter more than powered features or less frequent emptying.”
Compo Closet Cuddy Composting Toilet
Compared with the Cuddy Lite, the Compo Closet Cuddy adds a 12V fan and carbon filter to help manage odors, plus a manual mixer for routine use. That makes it a more equipped choice for a tiny house used regularly, while its compact footprint still suits vans, boats, and cabins. The stated 3.9-gallon capacity and emptying guidance—solids every two to three weeks and liquids every few days—give buyers a clearer maintenance rhythm than the product data for the Cuddy Lite. The tradeoff is that this remains a hands-on system: the mixer needs attention after each use, and the containers still need regular emptying. It can operate without electricity, but the listed fan depends on 12V power, so I would plan the setup around ventilation needs rather than assume every feature works off-grid without power.
Pros:- Compact dimensions suit limited bathroom floor space
- 12V fan and carbon filter are designed to help control odors
- Requires no water or chemicals
- Removable containers and an LED alert support routine emptying
Cons:- Manual mixing is required after each use
- Liquid container needs emptying every few days
- The fan’s powered odor-control function depends on a 12V supply
Best for: Tiny-house residents who want a compact, waterless toilet with a powered odor-control option and can keep up with frequent liquid emptying
Not ideal for: Buyers who want an entirely maintenance-free setup or do not want to mix waste manually after use
- Brand:Compo Closet
- Model:22022
- Capacity:3.9 gallons
- Dimensions:17 in D x 15.2 in W
- Power:12V; can operate without electricity
- Odor control:Built-in fan and carbon filter
- Water or chemicals required:No
- Solids emptying interval:Every 2–3 weeks
- Liquid emptying interval:Every few days
Our verdict“Pick the Cuddy if you want more odor-control equipment than the Cuddy Lite offers and are comfortable with regular, hands-on maintenance.”
LECARDIO Waterless Composting Toilet with Heating Plate, Electric Mixing, Urine Separation, and Exhaust Fan
The LECARDIO XY-JY is the most feature-driven option here for a tiny house where cool or damp conditions are a concern. Its heating plate and electric mixing are intended to support the composting process, while urine separation and an exhaust fan add a more involved approach than the manual-mix Compo Closet Cuddy. It also arrives with wood chips and compost starter, so buyers have basic composting supplies on hand. The cost of that equipment is a larger, 32-inch-deep unit and dependence on electricity for its fan, heater, and mixer. It also needs an outdoor exhaust vent, which can complicate installation in a finished tiny house. I’d favor it over a portable separator when a fixed, vented installation is practical; I’d skip it if mobility or power independence is the priority.
Pros:- Heating plate is intended to support operation in cold or damp conditions
- Electric mixing avoids manual mixing
- Urine separation and an exhaust fan are built into the system
- Wood chips and compost starter are included
Cons:- Fan, heating plate, and mixing require electricity
- Outdoor exhaust vent is required
- At 32 inches deep, it takes more room than the compact Compo Closet Cuddy
Best for: Tiny-house owners in cold or damp locations who can install an outdoor vent and supply electricity
Not ideal for: Mobile-home users, power-limited off-grid households, or anyone unable to route an exhaust vent outdoors
- Brand:LECARDIO
- Model:XY-JY
- Type:Waterless composting toilet
- Dimensions:32 x 16 x 20 in (D x W x H)
- Material:ABS
- Features:Heating plate, electric mixing, urine separation, exhaust fan
- Color:White
- Included components:Composting toilet, wood chips, compost starter
Our verdict“Choose the XY-JY when a fixed, powered, vented installation and cold-weather features matter more than compactness.”
Nature’s Head Self-Contained Composting Toilet with Close-Quarters Spider Handle
For full-time tiny-house residents, the Nature’s Head Close-Quarters Spider Handle stands out for its stated capacity: about 4–6 weeks for two full-time users before emptying. That is a substantially longer interval than the Cuddy models’ listed routine, particularly for households tired of handling a liquid container every few days. Its self-contained design and reported five-minute emptying process also make the maintenance task relatively defined. The compromise is its larger footprint and 28-pound weight, which make it less appealing for a toilet that must move or fit an especially tight bathroom. The listing describes wall installation, so buyers should check that this suits their intended layout. Compared with the LECARDIO XY-JY, it does not list a heating plate or electric mixer; its appeal is capacity and a stated five-year warranty, not extra powered features.
Pros:- Stated capacity is about 4–6 weeks for two full-time users
- Emptying is described as taking approximately five minutes
- Self-contained design supports installation without a separate external tank
- Includes a five-year warranty
Cons:- Larger and heavier than the portable Compo Closet Cuddy Lite
- Still requires periodic emptying
- Wall installation may not suit every tiny-house bathroom layout
Best for: One or two full-time tiny-house residents who value fewer emptying sessions and can dedicate a fixed space to the toilet
Not ideal for: Owners of very compact or frequently rearranged layouts, and buyers seeking listed electric mixing or heating features
- Brand:Nature’s Head
- Model:Spider Handle
- Dimensions:20.98 x 19.02 x 20.98 in (D x W x H)
- Weight:28 lb
- Material:Plastic
- Installation method:Wall
- Stated capacity:About 4–6 weeks for two full-time users
- Emptying time:Approximately five minutes
- Warranty:5 years
Our verdict“Choose Nature’s Head if longer intervals between emptying are more valuable than a small footprint or powered composting features.”
LECARDIO Waterless Composting Toilet for RVs, Vans, Boats, and Tiny Houses
The LECARDIO CT-YMX combines urine separation, electric mixing, a heating plate, and an exhaust fan with a rotating top, making it the most mechanically equipped choice in this group. That package is aimed at buyers who want more automated handling than the manual-mix Compo Closet Cuddy, while the rotating top is a distinct design feature not listed for the XY-JY. Both LECARDIO models need power for their electrical functions; unlike the XY-JY, this model’s listed dimensions are shorter in depth, though it still weighs 48 pounds, limiting its practicality as a movable toilet. The claimed two-month cleaning interval is specified for one person, so I would not assume the same schedule for a couple. Its feature set suits a fixed installation better than a lightweight, simple setup.
Pros:- Urine separation, electric mixing, heating, and an exhaust fan are included
- Rotating top adds a distinct mechanical feature
- Waterless design avoids flushing-water use
- Designed for RVs, vans, boats, and tiny houses
Cons:- At 48 lb, it is substantially heavier than the Compo Closet Cuddy Lite
- Electrical features require a power supply
- The stated two-month cleaning interval applies to one person, not a household of multiple users
Best for: Solo tiny-house residents who want powered mixing, heating, ventilation, and a rotating top in a fixed installation
Not ideal for: Couples seeking a confirmed long cleaning interval, households with limited electrical supply, or buyers who need a lightweight portable toilet
- Brand:LECARDIO
- Model:CT-YMX
- Dimensions:21.6 x 22.4 x 14.4 in (D x W x H)
- Weight:48 lb
- Color:White
- Features:Urine separation, electric mixing, heating plate, exhaust fan, rotating top
- Included components:Composting toilet
- Cleaning interval claim:Up to two months for one person
Our verdict“Choose the CT-YMX if you want its powered feature set and rotating top for a fixed solo setup, but not if low weight or multi-user service guidance is a priority.”
Nature’s Head Self-Contained Composting Toilet with Foot-Spider Handle
For a tiny house with a dedicated bathroom, this floor-mounted, self-contained design is a more permanent fit than the portable TROBOLO WandaGO, which is built for trips and frequent relocation. The foot-spider handle gives this model a distinct operating feature, while its plastic seat and body keep the listed construction straightforward. Its role here is best for buyers who want a composting toilet installed in one place rather than a unit to carry between a vehicle and campsite. The supplied details do not specify capacity, power needs, or ventilation requirements, so I would confirm those before planning a tight bathroom layout. At 12.7 kg, it is also considerably heavier than the WandaGO; that tradeoff is easier to accept in a stationary home than in mobile use.
Pros:- Self-contained composting design suits a permanent tiny-house bathroom.
- Foot-spider handle provides a distinctive operating arrangement.
- Floor-mounted installation is suited to a fixed layout.
- Plastic seat and construction are specified in the product details.
Cons:- At 12.7 kg, it is less convenient to move than the 10.4 lb TROBOLO WandaGO.
- The supplied specifications do not state capacity or emptying intervals.
- Ventilation and power requirements are not provided, so installation planning needs confirmation.
Best for: Tiny-house owners planning a fixed, floor-mounted toilet and who prefer a self-contained unit with a foot-operated handle.
Not ideal for: Campers and owners who need a lightweight portable toilet; its 12.7 kg weight and floor-mounted installation are less suited to frequent moves.
- Model:NH030-2020
- Manufacturer part number:NH030
- Toilet type:Self-contained composting toilet
- Handle shape:Foot-Spider
- Installation:Floor mounted
- Material:Plastic
- Seat material:Plastic
- Weight:12.7 kg
- Color:White
Our verdict“Choose this Nature’s Head model for a stationary tiny-house bathroom, not for a setup that needs to travel.”
TROBOLO WandaGO Portable Composting Toilet
The WandaGO is the clearest choice for mobility in this group: at 10.4 lb, it is far easier to carry than the 12.7 kg Nature’s Head Foot-Spider, and it does not need water, chemicals, or electricity. Its separate urine and solids containers make it usable where plumbing is unavailable, while the two seat-height settings let buyers adapt it to different users or settings. The tradeoff is hands-on upkeep: the listed containers cover roughly 10–20 urination uses and 8–12 defecation uses before emptying, so it is not a set-and-forget fixture for a full-time household. Compared with the Separett Tiny, which routes urine to an external system, the WandaGO avoids that installation but asks the owner to empty its containers regularly.
Pros:- Lightweight 10.4 lb body is suited to portable and mobile use.
- Works without water, chemicals, or electricity.
- Two seat-height settings accommodate different users and setups.
- Urine level indicator and travel fastening system support transport and monitoring.
Cons:- Urine and solids containers need regular emptying.
- No water-assisted or electric flushing is provided.
- Its portable format is less suited to owners seeking a permanently installed toilet with urine routed to an external tank.
Best for: Tiny-house owners who also camp or travel and want a lightweight, waterless toilet that can move between locations.
Not ideal for: Full-time households seeking reduced container handling; its stated use counts mean regular emptying is part of ownership.
- Model:P1
- Dimensions:15.0 × 13.4 × 12.3 in (D × W × H)
- Weight:10.4 lb
- Seat height settings:12.0 in or 17.2 in
- Weight capacity:330.7 lb
- Urine container capacity:1.2 gal
- Solids container capacity:1.7 gal
- Material:Plastic; polypropylene (PP) seat
- Uses before emptying:10–20 urination uses; 8–12 defecation uses
Our verdict“Pick the WandaGO if portability and independence from utilities matter more than avoiding frequent container emptying.”
Separett Tiny Urine-Separating Composting Toilet with Urine Tube
The urine hose changes the maintenance routine: instead of repeatedly emptying a urine container like the TROBOLO WandaGO, this Separett Tiny can drain to an external greywater system or holding tank. That makes it a stronger fit for a tiny house with a planned drainage route, especially when paired with its quiet ventilation fan to move air and help manage moisture and odors. The convenience comes with infrastructure demands: it needs a suitable urine destination, ventilation piping, and a power connection. This is less self-contained than the Nature’s Head Foot-Spider and less travel-friendly than the WandaGO, but it offers a more integrated stationary setup. The included hose and installation components help, while the stated five-year warranty adds a defined coverage period.
Pros:- Urine can drain to an external system, reducing container-emptying chores.
- Quiet ventilation fan helps remove odors and moisture.
- Includes a 6.6-foot urine hose and installation components.
- Five-year warranty is specified.
Cons:- Requires an external greywater system or holding tank for urine.
- Ventilation piping and a power connection add installation work.
- Less portable than the TROBOLO WandaGO and not self-contained in the same way as the Nature’s Head Foot-Spider.
Best for: Tiny-house owners with an external greywater system or holding tank who want to reduce routine urine-container emptying.
Not ideal for: Mobile or off-grid buyers without a urine drainage destination or dependable power for the ventilation fan.
- Model number:1271-03
- Manufacturer part number:1271-02
- Toilet type:Waterless urine-separating composting toilet
- Urine hose length:6.6 ft
- Ventilation piping:Up to 16 ft with two 90-degree bends
- Power:12V / 110–240V
- Warranty:5 years
- Included components:Urine hose, connectors, ventilation pipe components, toilet, installation hardware, and manuals
Our verdict“Choose this Separett Tiny when your fixed tiny-house plumbing and power can support urine drainage and ventilation.”
How We Picked
I ranked these toilets around the realities of tiny-house use: limited floor area, constrained utility access, and the need to manage waste without a conventional sewer connection. I compared their stated designs and intended settings, giving weight to footprint, urine separation, portability, ventilation and electrical requirements, waste handling, and the amount of installation planning each approach suggests. I also considered whether a model appears better suited to a fixed full-time bathroom or a flexible, occasional-use setup.
The ranking favors options with a clear fit for small, lived-in spaces and a practical balance of installation demands and ongoing upkeep. A higher position does not mean one toilet suits every household: portable units rank well for mobility, while larger or more feature-rich designs may suit buyers with room and utility capacity. Product names and descriptions do not provide every dimension, capacity, or power detail, so buyers should verify those specifications and local requirements before choosing.
| tiny house composting toilet | Brand | Material |
|---|---|---|
| Sun-Mar GTG Waterless Urine-Di | Sun-Mar | — |
| Separett Tiny Self-Contained U | Separett | — |
| OGO NOMAD Portable Urine-Diver | OGO | Polypropylene |
| Separett Villa Urine-Separatin | Separett | — |
| OGO Origin Compact Composting | OGO | Polypropylene |
| Compo Closet Cuddy Lite Portab | Compo Closet | ABS plastic |
| Compo Closet Cuddy Composting | Compo Closet | — |
| LECARDIO Waterless Composting | LECARDIO | ABS |
| Nature’s Head Self-Contained C | Nature’s Head | Plastic |
| LECARDIO Waterless Composting | LECARDIO | — |
| Nature’s Head Self-Contained C | — | Plastic |
| TROBOLO WandaGO Portable Compo | — | Plastic; polypropylene (PP) seat |
| Separett Tiny Urine-Separating | — | — |
Factors to Consider When Choosing Tiny House Composting Toilets
My product picks show different approaches to the same small-home problem. Before choosing, map the toilet into your actual floor plan and daily routine; a good match depends as much on access, utilities, and waste removal as on the bowl itself.
Measure the Whole Installation, Not Just the Toilet
Start with the toilet’s full footprint, then account for seat clearance, door swing, nearby fixtures, and room to remove the solids container. In a tiny bathroom, service access can be the detail that turns a nominally compact model into an awkward fit. Sketch the opening path for removable components before buying, including any narrow hallway or doorway between the bathroom and an outdoor disposal point. Check whether the chosen position leaves room to clean around the base and reach ventilation connections. A common mistake is measuring only the floor space occupied by the unit. Ask the seller for overall dimensions and the clearance needed for routine maintenance if those figures are not listed.
Match the Waste System to Your Routine
Urine-diverting toilets separate liquid and solid waste, while other designs may handle waste differently; that choice affects emptying, cleaning, and where each waste stream can go. Estimate household use, time between service trips, and who will do the work before settling on a system. A larger household or full-time residence may place more weight on usable capacity and simple access than a cabin used occasionally. Check the manufacturer’s guidance for emptying intervals and approved disposal methods rather than assuming the name “composting” means waste can go straight into a garden. If the routine sounds unpleasant or difficult to maintain, favor a design whose containers and cleaning steps fit your habits. The best waste system is the one you can manage consistently.
Plan Power, Venting, and Drainage Before Installation
Fans, heaters, and powered mixing can add functions, but they also create utility requirements that a purely mechanical setup may avoid. Confirm voltage, power draw, wiring needs, and whether backup power matters for your household. Venting may require a route through a wall or roof, so identify a practical path before selecting a toilet; bends, distance, and weather exposure can affect the installation plan. Urine-separating models may also need a drain or a container arrangement that fits your space and local rules. Do not treat an electrical feature as a substitute for correct ventilation or regular care. When comparing options, count installation materials and service access as part of the system, not as afterthoughts.
Choose Portability Only If You Need It
Portable toilets can make sense for a movable tiny house, a secondary bathroom, or a layout that changes with the season. Their flexibility may come with more frequent manual handling, more attention to securing the unit during travel, or a different emptying routine than a fixed installation. A permanently sited home may benefit more from a stable fixture and a planned vent route than from a unit designed to move. Think through how the toilet will be carried, stored, and emptied when full, not just how easy it is to place on the floor. If the toilet will travel, confirm that the manufacturer describes it for that type of use. If it will not, portability may add little value for the space it occupies.
Compare Maintenance Access and Replacement Parts
Every system needs routine cleaning and some form of waste removal, but the access points and components differ. Before purchase, find out how to reach the fan, seals, containers, mixing mechanism, and any liquid outlet that may need cleaning. Check whether replacement parts and support are available for the product and the country where the house is located. A feature-rich design can be harder to service if its components are difficult to reach or depend on specialized parts. A simpler toilet may be easier to maintain but may offer fewer powered functions. Consider who will handle repairs and whether you can keep the unit usable while waiting for a part.
Check Rules and Disposal Options Before Committing
Waste disposal rules vary by location, property type, and waste stream, so confirm requirements with the relevant local authority before installation. Do not assume a product’s marketing language determines whether its output can be buried, placed in household waste, or used as soil amendment. If the home is on rented land, in a community, or subject to building approval, ask about sanitation requirements early. Verify whether graywater, urine, and solids have separate handling rules in your area. A toilet that fits the bathroom may still be unsuitable if its waste cannot be managed legally or practically. Having a disposal plan before purchase can prevent expensive layout changes later.
Frequently Asked Questions
Can a tiny house composting toilet work as the only toilet for a full-time household?
It can, but suitability depends on household size, use frequency, capacity, and the maintenance routine the specific model requires. Check the manufacturer’s guidance for expected service intervals and compare it with how often you can realistically empty or clean the unit. Full-time use also makes access to replacement parts and a reliable disposal route more consequential than it is for occasional use. If several people share the toilet, ask how the design handles higher use rather than relying on a general product label. Confirm local sanitation rules before treating it as your sole system.
Do I need a powered toilet, or is a waterless model enough?
A waterless design does not automatically mean a toilet has no electrical needs; some waterless models still use a fan, heater, or mixing mechanism. Power can support active functions, but it adds wiring, energy use, and possible reliance on batteries or backup power. Start by checking the installation instructions and power specifications for the exact model. If your tiny house has limited electricity, compare those demands with your normal energy budget and outage plans. A simpler setup may be a better fit if you prefer fewer powered components and can manage its maintenance routine.
How much room should I leave around the toilet for emptying and cleaning?
There is no single clearance figure that works for every design, so use the manufacturer’s dimensions and service instructions for the model you plan to buy. Measure the path needed to remove containers, open access panels, reach ventilation connections, and clean the area around the base. Include door swing and the route from the bathroom to your disposal location. In a tiny house, a unit may physically fit but still be hard to service if a wall or vanity blocks a removable component. If the product information does not show service clearance, ask the seller before finalizing your layout.
Is urine separation the right choice for a tiny house?
Urine separation can change the frequency and method of handling liquid and solid waste, which some households may find helpful in a compact home. It also means planning for a urine container or drainage route and learning the cleaning routine for the separator. The right fit depends on your expected use, plumbing layout, local disposal rules, and willingness to manage separate waste streams. Compare the manufacturer’s directions with the setup you can support in your house. Do not choose solely because a model is compact; the waste route needs to work just as well as the footprint.
What should I verify before ordering a composting toilet for a movable tiny house?
Confirm that the model is intended for the kind of movement your home will experience and check how it should be secured during travel. Review the unit’s dimensions, weight, power needs, vent routing, and waste-container arrangement against the vehicle or trailer layout. Ask whether vibration or tilting affects the manufacturer’s use instructions, especially for liquids and removable containers. Plan where you will empty waste during trips, since a convenient setup at a permanent site may not work on the road. Also check local rules at both your home base and the places where you expect to travel.
Conclusion
For most tiny-house buyers, I would start with the Separett Tiny as best overall, then compare its installation needs with the Sun-Mar GTG if a waterless, space-conscious setup is the priority. My best value choice is the OGO NOMAD for buyers who need a portable format, while the best premium fit is the Separett Villa for a more permanent installation. Beginners should focus on the Compo Closet Cuddy Lite if a portable approach suits their routine, but they should review its service steps before committing. For a tight footprint, compare the OGO Origin and Separett Tiny; for buyers weighing powered features, examine the heated, electrically mixed model alongside the LECARDIO and verify power and service details. The right choice is the one that fits your floor plan, utility capacity, disposal rules, and willingness to handle regular maintenance.
