An average American uses around 100 gallons of water per day, and 19 – 20 gallons of that amount is spent on flushing a toilet. One of the ways to conserve water and reduce environmental impact is to use a composting toilet. In this article, we will review some of the best composting toilets for sale, based on their features, performance, durability, and customer reviews.
Best Composting Toilets for Sale
Composting toilets is a great way to save water, reduce environmental impact, and produce valuable fertilizer for your garden. They are designed to convert human waste into compost-like material using natural processes, without the need for plumbing or sewage systems. Composting toilets are ideal for off-grid locations, such as cabins, boats, RVs, and tiny homes, as well as for eco-conscious homeowners who want to reduce their water footprint.
We have created a list of some of the best composting toilets for sale.
1. Nature’s Head
Nature’s Head produces self-contained composting toilets. It offers eco-friendly portable toilets that are designed for off-grid living, where plumbing and electricity are not available. It also features a urine-diverting system and a composting chamber that turns human waste into a dry, odorless, and nutrient-rich fertilizer.
Nature’s Head Composting Toilet with Foot Spider Handle/Spider Handle
Key features and benefits:
- Eliminates the need for water, plumbing, septic, or sewer systems.
- Produces nutrient-rich compost that can be used for gardening and landscaping.
- Reduces odor and flies with a vent fan and a peat moss medium.
- Lightweight, simple to install, and demands minimal maintenance.
- This best composting toilet comes with a 5-year warranty and a crank handle.
Nature’s Head Composting Toilet is available for purchase on NaturesHead.net for around $995.
2. Sun Mar
Sun Mar composting toilets use a three-chamber technology: The Bio-drum, the Finishing Drawer, and the Evaporation Chamber. They do not require water, plumbing, septic, or sewer systems, and produce nutrient-rich compost that can be used for gardening and landscaping. These are also considered the best composting toilets for sale. Sun Mar produces composting toilets for cabins, cottages, RVs, boats, farms, homes, and other situations.
Some of the best composting toilets from Sun-Mar are shown in the table below
Model |
Sun-Mar Compact |
Sun-Mar Spacesaver |
Sun-Mar Excel AC/DC |
Composting Capacity |
1-3 adults |
1-3 adults |
3-6 adults |
Ventilation |
2’’ vent stack with an electric motor |
2’’ vent stack with turbofan |
Dual 2’’ AC 115V and 4’’ DC 12V vent stack |
Unique Features |
Bio-drum handle to aerate and mix the compost |
Can be used in limited spaces |
Can be converted into AC/DC system |
Electricity Usage |
Yes, 125W |
Yes, 110W |
Yes, 150W |
Warranty |
5 years on tank and 3 years on accessories |
5 years on tank and 3 years on accessories |
5 years on tank and 3 years on accessories |
Price Range |
$1,915.00 |
$1,865.00 |
$1,965.00 |
- Sun-Mar Compact Self-Contained Composting Toilet is available on SunMar.com for $1915 approximately.
- Sun-Mar Spacesaver Self-Contained Composting Toilet is available on SunMar.com for around $1865
- Sun-Mar Excel Self-Contained Composting Toilet is available on SunMar.com for $1965 approx.
If you require a composting toilet system for your home that can handle around 5-8 adults, you might want to consider the Sun-Mar 510 Ultra-low flush toilet and Sun-Mar CENTREX 3000 system. The Sun-Mar 510 Ultra is a ceramic toilet with a regular design that connects to the Sun-Mar CENTREX 3000 as a composting and storage unit.
To improve the composting and the ventilation process, it is recommended to use the optional AC/DC kit with the CENTREX 3000. The two products are required to be purchased separately and can be found on their official website.
- Sun-Mar 510 Ultra Low Flush Toilet is available on SunMar.com for around $406.
- Sun-Mar CENTREX 3000 is available on SunMar.com for $2,265.
3. Separett
Separett specializes in urine-diverting toilets that separate urine from solid waste. These toilets do not use water or sewage and prevent odor and flies with a vent fan and a peat moss medium. Separett toilets are designed for off-grid living, where plumbing and electricity are not available. They also offer incinerating toilets and bidet toilet seat attachments.
Model |
Separett Villa 9215 |
Separett Tiny |
Composting Capacity |
4 adults |
2 adults |
Ventilation |
75mm vent pipe with electric fan |
50mm vent pipe with electric fan |
Unique Features |
Urine-diverting system that separates urine and solid waste and vents out moisture and air with a fan |
Separate collectors as solid waste goes into a bio-degradable bag and liquids into an internal container |
Electricity Usage |
Yes, 2.5W DC and 0.06kWh/day AC |
Yes, 0.04kWh/day |
Warranty |
5 years on manufacturing defects and 3 years on fan |
5 years on manufacturing defects and 3 years on fan |
Price Range |
$989.00 |
$1,049.00 |
- If you are wondering about the best composting toilets for sale, this Separett Villa 9215 AC/DC is available and can be purchased from Separett.com for around $989.00
- Separett Tiny® with Urine Container is available and can be purchased from Separett.com for around $1049.
Also, check out the 7 Best Eco Friendly House Designs.
4. BioLet
Biolet manufactures some of the best composting toilets for homes available for sale that require little to no water. Their toilets are designed to be easy to use, economical to operate, and environmentally friendly. Biolet toilets are suitable for various locations, such as homes, cottages, cabins, tiny houses, boats, and garages. Biolet toilets have different models and features, such as self-contained, central, automatic, or manual.
Two of their popular composting toilets for cabins and homes are
Model |
BioLet 65 |
BioLet 15 |
Composting Capacity |
4-6 adults |
3-4 adults |
Ventilation |
55mm vent pipe with electric fan |
55mm vent pipe with electric fan |
Unique Features |
Fully automated advanced active liquid control sensor, fan, and mixer |
Quiet fan, double heaters, compost covers, and manual mixer |
Swan Ecolabel |
Yes |
No |
Electricity Usage |
Yes, 1.5kWh/day |
Yes, 1.4kWh/day |
Warranty |
3 years |
3 years |
Price Range |
$2,970.00 |
$1,980.00 |
- BioLet Composting Toilet 65 is available and can be purchased from BioLet.com for around $2970.
- BioLet Composting Toilet 15 is available and can be purchased from BioLet.com for around $1980.
Also See: 18 Best Eco-friendly Sustainable Toilet Paper Brands
5. OGO
OGO composting toilets are a modern and sleek sanitation solution that sets out to resolve the limitations of traditional toilets, without the need for water or septic tanks/sewage lines. These eco-friendly toilets are designed to be easy to use and are economical to operate. OGO composting toilets are ideal for camping, RVing, boating, and home use and are also termed the best composting toilets for sale.
OGO Origin
Key features and benefits:
- A patented bagging system to seal and dispose of waste.
- This eco-friendly portable toilet does not require water or septic tanks/sewage lines.
- A urine-diverting design and a fan to separate the solid & liquid waste to reduce odour and moisture.
- Self-contained unit that can handle up to 2-4 people.
- Manual flush button and a twist-lock lid to prevent odor and leakage.
The OGO Origin Composting Toilet is available on their official website and can be purchased at around $984.99 on Ogotoilet.com.
6. Pikkuvihrea
Pikkuvihrea manufactures and sells waterless toilets for homes and public use. They offer a variety of dry toilets, such as portable toilets, urine-diverting toilets, composting toilets, freezing toilets, and outhouses. They also offer grey water purifiers, composters, and accessories. Pikkuvihrea is a dry toilet professional with decades of expertise
Green Toilet Lux Cassette Indoor Dry Toilet
Key features and benefits:
- A waterless composting toilet with a separate ceramic seat.
- Option for a urine-separating ceramic seat.
- Comes with a 3-speed duct fan for odourless operation.
- Features a large 120-liter or 150-liter container.
- Can be used with peat moss or other composting materials added after each use.
If you wondering if this composting toilet for homes and cabins is available for sale, note that Pikkuvihrea Composting Toilet is there on their official website at around 990.00 € on Pikkuvihrea.com.
Also See: 25 Sustainability in the Workplace Ideas and Practices
7. Trobolo
Trobolo toilets are smart composting toilets that are self-sufficient and sustainable. They work by separating the solid and liquid waste into different containers, which prevents odors and reduces the volume of waste. Trobolo toilets can be used without water or electricity, making them ideal for off-grid locations such as gardens, tiny houses, campers, vans, camping sites, and institutions.
Model |
TROBOLO KersaBœm |
TROBOLO BilaBox |
Composting Capacity |
30-40 uses |
10-14 uses |
Ventilation |
Yes |
No |
Unique Features |
Outdoor composting toilet with a high-quality wooden build |
Mobile composting toilet made with ultra-light plastic |
Emptying Interval |
20-30 days |
5-10 days |
Electricity Usage |
Optional, LED light with motion sensor |
No |
Price Range |
1979.00 € |
139.00 € |
- TROBOLO KersaBœm is available on Trobolo.com for around 1.979,00 €.
- TROBOLO Bilabox is available on Trobolo.com for around 139,00 €.
8. Laveo
The Laveo by dry flush is not a composting toilet in the strict sense, as it does not convert waste into compost-like material using natural processes. However, it does have some features that make it like a composting toilet, such as
- It does not require plumbing or sewage systems.
- It uses a biodegradable bag to seal and dispose of the waste, which can be easily removed and composted in a suitable facility or location.
- It has a fan and a vacuum mechanism to reduce odor and moisture similar to composting toilets.
Laveo offers eco-friendly portable toilets that use a patented bagging system to seal and dispose of waste. They are sleek and modern and can be easily installed in any location.
Laveo Dry Flush Toilet
Key features and benefits:
- This self-contained unit can handle up to 17 flushes per cartridge.
- Battery-powered flush button.
- Double-layered seal and a twist-lock lid to prevent odour and leakage.
- Medium capacity and a removable cartridge that can be easily replaced and composted.
- Can also be used in compact spaces.
The Laveo dry flush is available on their official website with a price range of $895.00 – $975.00 on dryflush.com. It can also be bundled with the comfort lift package for around $1,395.00 on dryflush.com.
Also Read: 26 Eco-Friendly Lifestyle Practices for Day-to-Day Life
9. Stansport
Stansport offers a simple and affordable bucket-style portable toilet that is ideal for camping, boating, hunting, and other outdoor activities. They are made of heavy-duty plastic and have a full-size seat and lid for comfort.
Stansport Easy-Go portable toilet
Key features and benefits:
- This eco-friendly portable toilet comes with a disposable sanitary bag.
- Bundled deodorant packet minimizes odor and mess.
- It can support up to 275lbs.
- Compact and lightweight design for easy transport and storage.
Stansport Easy-Go portable toilet is available on their official website for around $67.79 on Stansport.com.
10. Thetford
Thetford offers a versatile and eco-friendly portable toilet that can be used with either AC or DC power. They have a simple and elegant design and can be easily installed in any location. Thetford toilets have a large capacity and a removable waste container that can be easily emptied and composted.
Some features of its models are:
Model |
Porta Potti 565e |
Porta Potti 365 |
Porta Potti 345 |
Waste Capacity |
5.5 gallons, 2 adults and 2 kids |
5.5 gallons, 2 adults |
3.2 gallons, 1 adult |
Flush Type |
Electric Flush |
Manual Piston Pump Flush |
Manual Piston Pump Flush |
Unique Features |
Integrated toilet paper holder and hidden controls |
Removable seat and covers |
Removable seat and covers |
Level Indicator |
Yes |
Yes |
Yes |
Warranty |
3 years |
3 years |
3 years |
Approximate Price |
$206.12 |
$158.23 |
$135.94 |
- Thetford Porta Potti 565e is unavailable for purchase on their official website but you can use their Dealer and Service Locator feature to find dealers near you. However, it is also available on Amazon for around $206.12
- Thetford Porta Potti 365 is not available for purchase on their official website, but you can find dealers near you using their Dealer and Service Locator feature. On Amazon, you can get it at around $158.23
- Similarly, Thetford Porta Potti 345 is unavailable for sale on their official website, and the Dealer and Service Locator feature can be accessed to check out the nearby dealers. However, on Amazon, it is priced at around $135.94.
Also See: 10 Sustainable Fashion Business Ideas
How to Choose Best Composting Toilets for Your Needs
There are many factors to consider when choosing the best composting toilet for your needs, such as
1. Capacity: Choose a toilet that can handle the amount of waste that will be generated and have enough space to store the compost. Generally, the larger the capacity, the higher the price and the more space required.
2. Water: Some composting toilets are waterless and use a urine-diverting design to separate the solid and liquid waste, while others are low-flush and use a small amount of water to flush the waste. Look for specific models that suit your water availability and conservation goals.
3. Power: Some composting toilets require electricity to operate the fan, heater, or mixer, while others are non-electric and use natural ventilation or wind power. Choose one that matches the availability and reliability of your power source.
4. Design: Composting toilets come in variable sizes, shapes, colors, and materials according to your location and preference. You also need to consider the ease of installation, maintenance, and disposal of the toilet.
5. Performance: You need to choose a toilet that has a proven and efficient composting system that can break down the waste quickly and safely. It is recommended to opt for a toilet that has a good ventilation and sealing system to prevent odor and leakage.
In this blog, we have reviewed some of the best eco-friendly portable toilets based on their features, performance, durability, and customer reviews. We have also provided tips on how to choose the best composting toilet based on your needs. For easy installation and efficient waste handling, you can select Nature’s Head with Spider Head. If portability is your preference, we suggest the Sun-Mar GTG Portable Electric Waterless Toilet as it is compact, and for automatic features, you can choose the BioLet Composting Toilet 65. To access more content on sustainable topics, stay tuned!
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