5 Best Composting Toilets of 2020 – (Reviews & Ultimate Buyer’s Guide)

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Written by Eric

Last Updated: 11/12/2020

Best Composting Toilets Reviews

Composting toilets are a kind of dry toilet that converts human waste into usable soil. Because human waste is mostly made out of water, when it evaporates it loses a lot of its volume and becomes a lot more manageable. Composting toilets are completely sanitary and safe to use as long as they are ventilated properly. Proper ventilation, such as fans and vents will eliminate bad odors as well as dry out the waste for proper composting.

For off the grid living and in the field work, a composting toilet allows for a solution to waste removal that is sustainable, affordable, eco-friendly. Where no water connections or toilet connects are allowed a composting toilet can be installed. Composting toilets are completely hygienic. They require proper ventilation for the best results to manage bad odors and promote the best composting. Composting will kill bacteria and germs from the waste as well as reducing the moisture and volume to make it safe and manageable.

In this guide we give an overview of the best composting toilets and waterless toilets currently available on the market. Our guides only include completely unbiased reviews of the best composting toilets currently in the market. In addition to the best composting toilets reviews, we also include an overview of what features to look for while shopping for a composting toilet, what a composting toilet is, and answers to frequently asked questions about composting toilets. This buying guide will tell you everything you need to know about composting toilets.

Composting Toilets Reviews

Natures Head Dry Composting Toilet
  • 4.5 Customer Rating
  • Nature's Head Dry
  • Color: White
  • Shape: Elongated
  • Dimensions: 19.8 x 20.8 x 20.5 in
  • Weight: 27.2 pounds
  • Warranty: Manufacturers

Natures Head Self Contained Composting Toilet
  • 4.5 Customer Rating
  • Nature's Head Self Contained
  • Color: White
  • Shape: Elongated
  • Dimensions: 22 x 20.5 x 21.7 in
  • Weight: 28 lbs
  • Warranty: Manufacturers

Villa 9215
  • 4.5 Customer Rating
  • Villa 9215
  • Color: White
  • Shape: Elongated
  • Dimensions: N/A
  • Weight: 36.7 pounds
  • Warranty: Manufacturers

Sun-Mar Excel Non-Electric Self-Contained Composting Toilet
  • 3.5 Customer Rating
  • Sun-Mar Excel
  • Color: White
  • Shape: Elongated
  • Dimensions: 33 x 22.5 x 33 in
  • Weight: 90 lbs
  • Warranty: Manufacturers

Sun-Mar Compact Self-Contained Composting Toilet
  • 3.5 Customer Rating
  • Sun-Mar Compact
  • Color: White
  • Shape: Elongated
  • Dimensions: N/A
  • Weight: 90 pounds
  • Warranty: Manufacturers

Nature’s Head Dry Composting Toilet with Standard Crank Handle

Natures Head Dry Composting Toilet with Standard Crank HandleThis Nature’s Head Dry Composting Toilet is super easy to install and comes with all the necessary vent connections to get started with your new eco-friendly toilet installation right away. Professional installation is recommended, but an experienced home improvement DIYer can complete the installation for this high-quality composting toilet in less than a day with only a few basic plumbing tools.

It has fast composting to prevent odors and includes an easy to use crank handle. This is an ideal toilet in the field sanitation and can withstand harsh conditions including temperature and moisture changes. It is perfect for cabins, RVs, boats, and workshops.

This is a great value for a composting toilet which is high-quality, easy to use, and made to last. Nature’s Head only use top of the line materials in the construction of their toilets and have a friendly customer service team available to answer any questions about warranty or installation. Nature’s Head toilets are made in the USA.


  • Crank handle.
  • Fast composting.
  • Easy to use and install.
  • Comes with vent hose and connections.
  • Customer care.
  • Stainless steel construction.
  • Lightweight.
  • Waterless operation.

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Nature’s Head Self Contained Composting Toilet

Natures Head Self Contained Composting ToiletThis Nature’s Head toilet is made in the USA out of 100% stainless steel. The lightweight construction of the toilet makes it easy to install. It is perfect for cabins, RVs, boats, workshops, and other outdoor or “in the field” locations which require a dry toilet. Dry toilets are a great sanitation solution for eco-friendly waste disposal that can be installed almost anywhere.

The toilet looks like a regular toilet and has an elongated toilet seat for added comfort. Most people prefer an elongated toilet seat over a regular toilet seat. It comes with a ventilation hose and fan which are easy to install and effectively eliminate odors and evaporation from the waste containment. The color of the toilet is Granite colored, which is a grey marbled stone texture. It is easy to dissemble and empty the container, which makes it easy for anyone to use.

The ventilation fan helps to make the bathroom smell better and is built directly into the toilet. This toilet by Nature’s Head was originally designed to be used as a US marine toilet so it is very durable to all kinds of harsh conditions. No matter what the environment you will get excellent performance out of this composting toilet.


  • Elongated toilet seat included.
  • Floor mounted.
  • US marine strong.
  • Granite finish.
  • Stainless steel construction.
  • Easy to install.
  • Lightweight.
  • Dry toilet.
  • Vent fan.

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Villa 9215 AC/DC

Villa 9215This toilet is very versatile and can be installed in almost any environment. It has a one-piece construction and a white finish that makes it look like a regular toilet. You can use this toilet for on the grid and off the grid living. This is a best-selling toilet for off the grid living because it comes with a ventilation fan which helps to remove odors and evaporate waste by blowing air directly over the waste container. The waste is held in the container for about three weeks before your family will need to recycle or dispose of it.

The Villa is made by one of the best manufacturers of composting toilets and it comes with a warranty that ensures that the product is delivered and functions as promised. Only high-quality parts are used in the construction of these toilets that have been tested and certified as safe and durable for off the grid living. The warranty protects against parts defects for five years after purchase and protects against fan defects for three years after purchase.


  • Waterless.
  • White finish.
  • One-piece.
  • Three year warranty on the fan.
  • Five year warranty on the parts.
  • Built-in ventilation fan.
  • Intertec ETL certified.
  • Uses a holding tank or grey water system.
  • Online guides available.
  • Comfortable to sit on.

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Sun-Mar Excel Non-Electric Self-Contained Composting Toilet

Sun-Mar Excel Non-Electric Self-Contained Composting ToiletThis composting toilet is ideal for off the grid living because it requires no electricity for operation. It is comfortable to sit on and has a low-profile look that will blend into your bathroom. It has completely waterless function and requires no water connections. It does need a ventilation system, and it comes with a venting kit which makes it easy to install yourself.

This toilet does not pollute the environment in any way which makes it a great toilet for environmentally conscious households. It has a recessed handle for processing the compost with ease. Anyone can use this toilet and it can be installed in a variety of locations with ease. Professional installation is recommended, but this toilet can be easily installed by a home improvement DIYer with a few basic plumbing tools.


  • Recessed handle.
  • Comfortable.
  • Waterless function.
  • Non-electric function.
  • Perfect for off the grid living.
  • Comes with venting kit.
  • Easy to install.
  • Eliminates odor.
  • 2-3 person household capacity.
  • 5-7 people for a vacation capacity

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Sun-Mar Compact Self-Contained Composting Toilet

Sun-Mar Compact Self-Contained Composting ToiletThis composting toilet by Sun-Mar is a compact size which makes it perfect for installation in a small space. It comes in a white color and has a one-piece design that will blend in with any bathroom setting. It is a self-contained system that uses ventilation to prevent odors. It is a more environmentally friendly choice than a traditional toilet and produces no pollution.

This product has been evaluated by the NSF and certified for efficient fertilization. It uses bacteria and microorganisms to break down waste, reducing the volume of waste so that it is easy to dispose of and is not harmful to the environment. You can install this toilet anywhere without the need for any plumbing connections.


  • White color.
  • One-piece.
  • Compact size.
  • Certified by the NSF.
  • Eco-friendly.
  • Eliminates odors. .

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Best Composting ToiletsWhat is a Composting Toilet and How Does It Work?

Unlike a traditional toilet which uses water and gravity to dispose of human waste into a sewer system or septic tank, a composting toilet is a type of dry toilet. There are some composting toilets which use a water and flush system, but in general almost all composting toilets are dry toilets which means they do not use any water. Composting toilets are most eco-friendly than a toilet that uses water in many ways which is why they are popular for environmentally friendly households.

A composting toilet relies only on nature to dispose of human waste. Through the processes of decomposition and evaporation, composting toilets recycle waste into fertilizing soil. Most of human waste is made of water and the evaporation process drastically reduces the volume which makes the waste more manageable. Composting toilets work the same as a garden compost, converting unwanted waste into usable fertilizer. A high-quality ventilation system is necessary for a composting toilet to ventilate the evaporated waste.

An important part of the composting process is in the microscopic organisms such as bacteria which help to properly break down the waste. The correct environment must be maintained to prevent bad odors and produce the best quality fertilizer. When the bacteria breaks down the human waste into fertilizer it also removes diseases and germs so composting toilets are completely safe to use.

There are different kinds of composting toilets, which we will go over in this guide, but what they all have in common is that they turn waste into usable soil which can be used in the garden. Because the composting process kills germs and diseases, it is completely safe to use use a composting garden and to use the compost just like you would use food compost for your garden.

Best Composting ToiletsThree Things to Consider Before You Buy a Composting Toilet

When shopping for a composting toilet, an eco-friendly waste removal solution, or any other home goods it may be overwhelming the amount of options that are available. Before you address the extra features such as the color of the toilet and the type of seat, you will want to consider the following three things.

1. Check the dimensions and configuration.

The toilet will need to fit into the bathroom so the first thing you should do is to measure the dimensions of the bathroom and determine how much space you have to install the toilet. Looking at composting toilet reviews can help you to get a better idea of what the average size range is for composting toilets. They come in many of the same size options as regular toilets including compact sizes for small spaces. The compost toilet will also have a containment chamber and ventilation system which will need to be accounted for in terms of space, dimensions, and configuration.

  • Check the width, length, and height.
  • Use blueprints to help you.
  • Use an accurate tape measure.
  • Look at the dimensions on the product description.
  • Measure your current toilet.

2. Plan for ventilation

The only way to prevent odors from your composting toilet and achieve the best biodegradation results is to plan for ventilation. Many composting toilets have fans built in. The ventilation may go horizontally or vertically. The composting toilet may come with ventilation connections or a complete ventilation kit so you should hold off on purchasing the materials for ventilation until you have determined the complete configuration you will be installing. The ventilation may be the most complicated part of the ventilation process so it is important to take this into consideration.

  • You will need a vent system for many composting toilets.
  • Self-contained toilets may need electricity for a fan.
  • The temperature and humidity are all important for making the best compost.

3. Plan for the size of your household

The size and capacity of the toilet you will need depends on the number of people in your household and how often they use the bathroom. For more people you will need a larger containment chamber or you will need to empty the container more often. Most composting toilets are for two to three people, or more if only used for a short period of time. If the toilet is too small and can not handle the capacity of the household it could cause bad odors and efficient composting.

  • Average capacity for a compost toilet is 2-4.
  • The amount of people will affect how often the unit needs to be clean.
  • Do not use a compost toilet with more people than the recommended capacity.

Types of Composting Toilets

Best Composting ToiletsMost composting toilets are waterless, but there are differences between waterless composting toilets in terms of whether or not they use electricity or not and what kind of waste removal system is used. Here is a list of some of the best types of composting toilets and how they compare and differ from each other.

  • Waterless

Waterless composting toilets do not use a flush system and instead rely on some sort of crank to deliver the waste into a composting chamber. While in the composting chamber the waste will be ventilated to remove bad odors and the process of composting will begin. Because waterless toilets do not need a plumbing connection of any kind the installation options are very versatile. They are also a more eco-friendly toilet than a toilet that uses water and saves you money in energy bills. Waterless composting toilets can be used for off the grid living since they do not require water or plumbing connections.

  • Waterless toilets save you money.
  • Waterless toilets are better for the environment.
  • Eliminated water reduces the volume of waste.
  • No plumbing connections are required for a waterless toilet.
  • The installation process may be easier for a waterless toilet.
  • Electric

Some composting toilets require an electric connection. This electricity requirement may be for a built-in fan to help ventilation, or some other electrical process. For an electric composting toilet there will need to be a power connection made either by a generator, solar panels, batteries, or some other form of electricity which may make it more complicated for installation in an off-the-grid environment. You should check the electrical requirements of your composting toilet while shopping and make provisions for providing the correct electricity connections.

  • Electricity may be needed to power a fan or other feature.
  • Electricity may be provided by a battery or generator.
  • Look into solar panels for an eco-friendly electric solution.
  • Non-Electric

Non-electric toilets are ideal for off-the-grid living. A waterless and non-electric composting toilet can be installed anywhere and requires no electrical or plumbing connections. Both centralized compost toilet systems and self contained compost toilet systems can have non-electric function. If there is no electricity used ventilation will be more complicated and it may require an outside container such as with a centralized compost toilet system. There are non-electric and waterless toilets available which are perfect for outdoor living in off the grid and in the field locations.

  • It may be harder to ventilate with a non-electric fan.
  • Non-electric composting toilets save money and energy.
  • Non-electric composting toilets are an eco-friendly solution.
  • Self contained compost toilet system

A self-contained compost toilet system uses a containment chamber to hold the waste. This chamber will hold the waste while the composting process occurs and should be emptied every couple of weeks or more often. The waste will have drastically reduced in volume and can be disposed of easily. A self-contained system requires no plumbing which makes it quick and easy to install anywhere. These types of toilets are the best suited for winter environments. Self contained units are usually exceptionally easy to clean and maintain.

  • Self contained toilets are easy to install.
  • They may be a lower capacity than a centralized compost toilet system.
  • Self contained toilets require ventilation and may use electric powered fans.
  • Centralized compost toilet system

A cnetralized compost toilet system uses a two-part system that includes a normal looking toilet in the bathroom which leads to a waste containment chamber below. The waste containment chamber below is usually installed in the basement. It can also be installed outside of the building which is great for eliminating odors. Some centralized compost systems use a water flush system because it makes it easier to carry the waste outside into the containment chamber.

  • A centralized compost system deposits waste outside the house or in the basement.
  • The installation process may be more complicated for a central unit.
  • Some central compost systems use a water flush.

Things to Consider When Buying a Compost Toilet

There are several different types of composting toilets and there are variations between each category as well. There is a compost toilet to fit any environment as they are made for extreme conditions such as off the grid living, or for simply converting to a more sustainable and eco-friendly lifestyle. Here is a list of some of the things that you should consider when buying a compost toilet.

  • Self-contained or central units

The difference between a self-contained composting system and a central unit is where the composting occurs. There are benefits to both types of systems. Self-contained systems require electricity more often than a central unit whereas a central unit may require a plumbing connection if a flush system is used. Self contained units use a ventilation fan to remove odors and break down human waste and tissue paper into a manageable and recyclable compost.

Pros of Self-Contained Units

  • Self contained units are often completely waterless.
  • Self contained units can be used in winter environments.
  • Self contained units are easy to install.

Cons of Self-Contained Units

  • May be lower capacity.
  • May require electricity for a ventilation fan.
  • Takes up more space inside the bathroom.

Pros of Central Units

  • Waste is disposed of in another room/outside.
  • Eliminates bathroom odors.
  • Normal looking toilet.
  • Waterless.

Cons of Self-Contained Units

  • More complicated installation.
  • Harder to maintain.
  • Capacity

The capacity of the toilet refers to how much waste it can handle and is usually expressed in terms of how many people are in the household. Compost toilets are typically only suitable for two or three people to use for everyday living, however for a weekend a compost toilet is acceptable for five to seven people.

The toilet will need to be cleaned and emptied more often if more people use it. The capacity of the toilet will mostly only affect the size of the containment chamber needed whether that container is inside or outside of the house. Self-contained toilet systems may have a lower capacity than a central unit. It is essential to only use a composting toilet to the correct capacity.

It is a bad idea to try to use a compost toilet with more than the recommended capacity. If the waste is not able to compost properly it will be hard to dispose of and can cause a problem. Make sure that the toilet that you choose is a high enough capacity to handle the amount of people in your home whether that be one or ten.

  • Average capacity is 2-4 people.
  • Can be used by more people if just for the weekend.
  • Will need more maintenance for more people.
  • Do not use with more people than the recommended capacity.
  • Maintenance

All composting toilets require regular maintenance. For a self-contained unit the container will need to be changed often, but not before the biodegradation process has been completed. A high-quality composting toilet will decrease the volume of the waste which makes it easy to dispose of or recycle. Time and money spent on maintenance should be taken into consideration when shopping for the best composting toilet for you and your family.

A central unit will deposit the waste into an outside container or under the house into a basement. A central unit may make maintenance easier if the compost is directly next to the garden or a disposal bin. In addition to cleaning the container for the toilet you will also need to clean the toilet the same as you would a regular toilet. Check with the manufacturer or seller to find out what cleaning products can be used on the toilet.

  • Maintenance includes regular cleaning of the toilet.
  • You will need to clean the chamber out once a month or more often.
  • The amount of people who use the toilet will increase the amount of maintenance needed.
  • The type of toilet will affect what kind of maintenance is required.
  • Ease of Installation

If the toilet has a complicated installation it may take several days, several people, and the help of a professional. For ease of installation look for toilets that come with all the essential connections for ventilation, electricity, or water. If the components are not included with the toilet you should check with the company to find out what parts they recommend for installation. The ventilation kit and set up may or may not be included with the purchase of the toilet.

A professional installer is recommended to avoid damaging the toilet and accidentally voiding the warranty, but many composting toilets are very easy to install. Professional installation will ensure that you do not accidentally break any of the parts and void the warranty that came with the composting toilet. Self-contained toilets are probably the easiest to install. Most of the installation process for a composting toilet is the ventilation process.

A lightweight toilet will be easier to ship and install than one that is heavy. There are many durable yet lightweight materials available for composting toilets such as stainless steel. A metal toilet is preferable over a ceramic toilet because they are more lightweight and they will not crack or break like traditional ceramic toilets.

  • Dimension

The dimensions of the toilet will need to fit your bathroom. Before shopping you should measure your bathroom or check the blueprints to figure out exactly how large of a space you have for your toilet. Do not forget to think about the height of the toilet as well as the width. Not only will the toilet need to be low enough for someone to sit on it comfortably without any obstacle in the way, but also high enough that it is comfortable for sitting and standing.

A very low toilet may be hard for some to sit on and stand up. All you need to check the dimensions of your toilet is a tape measure. The manufacturer will include details of the dimensions in the product listings so you can compare and see which one is best for you. There are even very compact toilets available for use in unusually small bathrooms, which is common for outdoor/off the grid/in the field living environments.

  • Electrical or Non-Electrical

For off the grid living a non-electrical toilet may be the only option. The benefit of having an electric toilet is that the electricity can be used to power ventilation fans which will ease with the speed and quality of composting as well as preventing odors. If being environmentally friendly is your main concern, but you really want the benefits of an electric composting toilet, you can hook some electric composting toilets up to solar panels instead of electricity.

If you are in the market for an electric composting toilet, be sure to check the product listings for specifications about energy requirements. You may be able to power an electric toilet using a generator or batteries. Non-electric composting toilets are more common for central units because without electricity ventilation is more tricky. When shopping for a non-electric composting toilet for off the grid living you should always be mindful of the ventilation requirements to prevent bad odors.

  • Safety

Like other home appliances, there are certification boards available to accredit composting toilets. The composting process is essential to eliminating disease from human waste, which is why it is essential to choose a toilet that has an effective composting and waste disposal system. If the system uses electricity it should be tested and certified as safe as well. The best way to ensure that your composting toilet is safe is to only buy a composting toilet from a reputable dealer, get a composting toilet with a good warranty, and read composting toilet reviews.

  • Price

The price of a composting toilet can vary greatly and depend on many things. The up-front cost of the toilet is generally higher than a traditional toilet, but you may make that money back over time because you will eliminate water bills and can eliminate electricity bills as well. Here are some things that can affect the price of the composting toilet.

  • Capacity – a toilet that is made for more people will generally be larger and more expensive.
  • Brand – you can expect to pay more for a high-quality brand and you can expect to get value in return in terms of high-quality materials and customer care.
  • Materials – the materials used in construction of the toilet will have an affect on the price. Made to be lightweight, the material cost for these toilets is low.
  • Installation – the tools and time needed for installation should be taken into consideration with the price. Professional installation may be needed for a more complicated installation.
  • Up-front cost – the upfront cost of the toilet includes the toilet and any extra features such as a toilet seat and plumbing or ventilation components included.
  • Over-time cost – the cost over time is affected by what kind of maintenance is required. The cost over-time will be different depending on whether or not the toilet uses electricity or electricity. A waterless and non-electrical composting toilet may cost almost nothing to maintain over time.
  • Warranty – while the factory may include a free warranty with the purchase, there may be additional warranty options available for a price. A good warranty can pay for itself over and over again in terms of parts and repairs.
  • Warranty

When shopping for a composting toilet or any other home good you should always look for products that come with a warranty. A product warranty protects againsts parts defects and shipping damages so you can have peace of mind while ordering that the product will be delivered and function completely as promised.

A warranty may cover the parts of the toilet, the parts of a fan or ventilation system, the finish on the toilet, and the time that the warranty is valid after the purchase can vary. The best warranties are lifetime warranties which guarantee excellent performance, but an average warranty time for more toilets is between one and five years.

The Benefits of Having a Composting Toilet

Composting toilets are great for a lot of reasons! They are great for the environment, can save you money, and can be installed almost anywhere. By eliminating the need for water and electricity and by making waste more manageable, composting toilets can do a lot to reduce your home’s environmental footprint. They can also be installed in locations where electricity and plumbing are not possible or not wanted. For off the grid living a composting toilet is one of the best options for safe and effective waste removal. Here is a list of the benefits of composting toilet.

  • Economical

Unlike a normal toilet which uses gallons of water per flush, most compost toilets are completely waterless. Even the ones that do use water are very environmentally friendly. They also usually do not use electricity or they use a small amount of electricity so they cut down on utility costs. They are also less expensive to install because they do not require any plumbing connections. Self-contained toilets are very economical.

  • Composting toilets will help you save money on electricity and water bills.
  • They are easier to install than other toilets which saves you money in parts and labor.
  • Environmentally Friendly

Composting is great for the environment. Composting toilets work just like a garden compost, converting waste into a usable and nutrient rich soil. The product of a composting toilet will be dryer and much more compact version of what went into the toilet and will reduce the volume. Composting is better for the environment. Here are a few of the ways a composting toilet can be more environmentally friendly.

  • Uses No Water

Composting toilets are completely waterless, or if they do use a water flush system they only use a very small amount of water. Water consumption is bad for the environment because of water processing which requires groundwater reserves and natural water sources to be depleted, damaging ecosystems.

  • Low or No Electrical Use

A composting toilet may or may not require an electrical connection. The benefit of using an electric composting toilet is that the electricity can be used to power a ventilation fan which will eliminate odors and help the composting process. Some composting toilets do not use electricity such as a central compost unit where the waste drops to the basements or outside of the house and requires a different kind of ventilation than a self-contained unit.

  • Easy to Install

Composting toilets are very easy to install. They do not require many of the same plumbing and electrical connections that a regular toilet does. A self-contained unit that is waterless and power free is the easiest to install. A central unit will have a more complicated installation process as a compost will need to be installed outside of the house or under the house. The ventilation system is the most complicated part of the installation usually, although it requires only one vent.

  • While installation can be easy, professional installation is recommended.
  • The necessary connections for electricity or water may or may not be included.
  • Self-contained toilets are the easiest to install.
  • Ventilation is the most complicated part of installation.
  • Produces Compost for the Garden

Just like a food compost, the soil produced from a composting toilet can be recycled and used as food for your garden. The process of composting eliminates disease and viruses from human waste so you do not have to worry about health concerns. There is no risk in eating food that is grown with compost from a composting toilet. Using compost can help to grow beautiful flowers and vegetables, and eliminates waste from your house in a way that is clean, good for the environment, and sustainable.

  • Composting kills viruses and diseases.
  • Fertilizer helps your plants grow strong and beautiful.
  • It is completely safe to use compost in the garden.
  • It works the same way as a food compost for your garden.


  • How much does a composting toilet cost?

The cost of a composting toilet can vary greatly and depend on many costs. The up front cost of a composting toilet is generally greater than that of a regular toilet, but may be less expensive overall when you consider the cost of installation, plumbing, and water bills. Composting toilets for commercial use can range from $1,500 to $8,000, whereas there are composting toilets available for two to three person households that cost less than one thousand dollars.

  • Do compost toilets smell bad?

Composting toilets use ventilation to contain the smell of waste. Most people who use compost toilets say that they are completely odor free. All of the compost toilets that are included in the guide are effective at controlling odors and use a ventilation system to circulate air out of the house through a vent. Ventilation for compost toilets is the most important step to eliminating bad odors. As long as the toilet is the correct capacity, is emptied often enough, and has proper ventilation you should experience no bad smells from a composting toilet.

  • Can you use a composting toilet during the winter?

Composting toilets can be used during the winter, however they only work properly in temperature controlled environments. For a cold, winter environment you should choose a self-contained unit over a central unit because it is easier to keep the bathroom warm than it is to keep the whole house warm or an outside container warm. Composting toilets should not be used in extreme cold environments because they waste may freeze over which messes up the composting process.

  • Are composting toilets legal?

Composting toilets are legal, but they may not be allowed everywhere, which is why it is important to check your state and local ordinances before installing a composting toilet in your home, RV, cabin, workshop, or other location. Laws regarding composting toilets can vary from state to state and it is your responsibility to check with local government to ensure that the use of a composting toilet is legal in your area. Composting toilets can be used almost anywhere with a few conditions.

  • Do they take toilet paper too?

Most composting toilets are designed to break down toilet paper as well as human waste. The type of toilet paper used may have an effect on how well it breaks down. Both the toilet paper and waste will be reduced to a manageable volume and consistency which is an eco-friendly way to manage the removal of waste. You should avoid using a composting toilet as a waste bin and trying to recycle anything other than waste and toilet paper in the toilet. Some composting toilets may not be able to use toilet paper, but this is uncommon. The product listing will indicate whether or not you can use toilet paper with the toilet, but you can use toilet paper with almost all of the toilets that are currently on the market.

Composting Toilets Comparison Chart

Composting ToiletsColorShapeWeightRating
Nature's Head DryWhiteElongated27.2 pounds9
Nature's Head Self ContainedWhiteElongated28 lbs9
Villa 9215WhiteElongatedN/A9
Sun-Mar ExcelWhiteElongated90 lbs5
Sun-Mar CompactWhiteElongated90 pounds5


Composting toilets are a great option for unconventional living as well as for those who are environmentally friendly. They come in many different shapes and sizes, although they are generally designed for performance over aesthetics. For a normal looking toilet, a central unit can be installed which deposits the compost outside of the building. A self-contained toilet will have a container underneath which holds waste while biodegradation occurs. The bacteria composting the waste will eliminate any diseases as well as remove the water which greatly decreases the volume of waste for removal.

For the environment, composting toilets are a relief from the use of electricity and water from normal toilets. Not only do composting toilets do not use water or electricity, but they also turn the waste into a usable soil which can be used in the garden. The composting process produces a high-nutrient fertilizer when it is done correctly. Proper ventilation and temperature is important for correct composting which is why many systems include powered fans as well as a vent system to manage moisture.

Shopping for a composting toilet does not have to complicated. After reading this guide and comparing some unbiased reviews for the best selling composting toilets that are currently on the market we hope you will have an easier time finding the right composting toilet for you. There are many subtle variations between types of composting toilets, and comparing and contrasting the features of different models can help you determine which one is best for you.

In addition to the size, shape, and capacity of the toilet, you will also need to consider non physical components such as the cost over time and maintenance. All composting toilets require maintenance, but some need maintenance more often than other or could be more complicated. The cost over time for composting toilets is very low compared to that of normal toilets, but if they use water or electricity these utility costs should be considered in the total costs.

For advice about installation or warranties for your new toilet you should contact the customer care center of the manufacturer. Reputable companies should have customer representatives available to help you over the phone or by email with questions about installation or warranty. The ease of installation and possible costs should be considered, and professional installation is recommended for the best results. A warranty can help to protect your purchase from parts defects, shipping damages, and guarantee excellent performance for the lifetime of the product.

Composting toilets are great for the environment, great for your bank account, and they produce a usable soil that can be used in the garden. There a ton of benefits to using a composting toilet. They are usable in a home or cabin and are also made for harsh conditions such as off the grid living. This handy buying guide contains all the information you need to make an informed decision about what composting toilet is the best for your home. Our buying guides only include reviews for the best composting toilets that are completely unbiased and have been evaluated by a third party for safety and performance.


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