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- Best Composting Toilets for Sale
Pic Credit: 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
Pic Credit: 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 - Best Composting Toilets for Sale
Pic Credit: 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 - composting toilets for sale and cabins
Pic Credit: 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
Max Power of 355W

Yes, 1.4kWh/day
Max Power of 330W

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
Pic Credit: 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 - composting toilets for cabins
Pic Credit: 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 - eco-friendly portable toilets
Pic Credit: 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

Laveo: Eco-Friendly Portable Toilet
Pic Credit: 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-  composting toilets for cabins
Pic Credit: 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- composting toilets for home
Pic Credit: 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!

Recommended: 10 Most Water-Efficient and Sustainable Toilets

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Olivia is committed to green energy and works to help ensure our planet's long-term habitability. She takes part in environmental conservation by recycling and avoiding single-use plastic.

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