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Top 7 Best Composting Toilets For The Money 2021 Reviews

To be fair even the best of us need time – and multiple attempts – to get something right. As we march into the future we realize that there is a much better way of doing just about everything.

Do you want to talk to your halfway across the world? FaceTime them! You want to eat outside food but you don’t want to go out? Order in from your favorite restaurant.

Similarly, a better way to dispose of our waste other than regular toilets! Composting toilets of course!

Maybe you haven’t heard of them before? But if you have and you’re interested in getting a great value for your money then stick around! Because we are about to review the best composting toilet out there!

Top 7 Best Composting Toilets For The Money 2021 Reviews

Top 7 Best Composting Toilets In 2021 Reviews

1 Separett Villa 9215 Ac/Dc

Separett Villa 9215 AC/DC comes with a simple and compact design. It offers you great comfort while using it. It is suitable for both on-grid and off-grid living. You can use it in your house with ease.

That’s’ not all. . . You can even install it in your RV or boat.

You can easily power the single speed electric fan of this composting toilet by DC supply or AC supply. How can you beat that? Yes, it totally depends on your need and personal choice. The fan helps evaporate the liquid and keep the solids dry.

This composting toilet comes with a pressure-sensitive seat. It detects as soon as someone sits on the toilet. The solid bin opens automatically as soon as it sensors someone sitting on it.

You don’t have to face the odor issues if you own this composting toilet. It has separate containers for the solids and liquids. The cool thing is that it converts human waste into fertilizing the soil.

Just make sure that you cover the lid to maximize the composting time. The best thing is … you are able to get more compost in very little time.

The good news is that you don’t have to work hard enough on its maintenance. It gives you amazing functionality. It comes with a composting bag which is removable. The composting process takes place in the bag, not inside the toilet.

This composting toilet also comes with an ETL Certification. It meets all the standards and regulations of ETL. The materials used in the manufacturing of this composting toilet are top-class.


  • The sleek design of the composting toilet makes it suitable for on-grid and off-grid use.
  • The fan gives you optimal air circulation which helps the decomposing system.
  • This is a portable composting toilet which is light-weight. You can easily take it along wherever you go.
  • It comes with a 5-year warranty which gives you peace of mind.


  • Not easy for you to put together.
Separett Villa 9215 AC/DC
Our rating:4.6 out of 5 stars (4.6 / 5)

2 Nature’s Head Self Contained Composting Toilet

To begin with, this is an eco-friendly composting toilet. It is specifically designed to recycle human waste into fertilized soil. Nature’s Head Composting Toilet is a self-contained toilet. It gives you more than you expect from it.

The best part? The compact and sleek design of this composting toilet makes it suitable for small houses.

This composting toilet comes with a non-electrical system. You don’t need any sewerage or plumbing system to operate it. The stainless steel material makes it lightweight and durable. You can easily take it with you wherever you go. This toilet is suitable for you to install in RVs and boats.

The fan of the composting toilet comes with a low volume circulation. The best thing about the low volume air is … it keeps your bathroom ventilated. You don’t have to worry about the bad odor. It leaves a pleasing smell in your bathroom. Therefore, installing this composting in your RV won’t be a nightmare for you.

Wait, there is more. It is constructed made in the USA with the finest materials. It has the ability to stand the test of times. You can even use it in a harsh marine environment.

Cleaning the toilet is not an issue. It is easier than you think. It is always good for you to clean it once a week. Keeping a screwdriver handy would make it easier for you to maintain it. You can conveniently reinstall it anywhere where there is no plumbing and electrical system.


  • This composting toilet is suitable to use in any type of rugged environment.
  • The stainless steel material makes it robust and durable.
  • It does not come with a holding tank system. You don’t have to deal with the bad odor.
  • The low volume fan provides you optimal ventilation system.
  • Assembling and dissembling the toilet is not a hassle.
  • It comes with a comfortable seat which makes it easier for you to use it.
  • You can conveniently feed the soil of your garden with the composting produced by this toilet system.


  • You might find it difficult to deal with the side latches.
Nature’s Head Self Contained Composting Toilet
Our rating:4.3 out of 5 stars (4.3 / 5)

3 Nature’s Head Dry Composting Toilet

Are you concerned about your environment? Do you want to possess an environment-friendly toilet? Nature’s Head Dry Composting Toilet is a perfect choice for you.

It is a good buy for you if you are a frequent traveler because it meets all your methods of traveling. You can take it along with you while camping or hunting.

This composting toilet which is equally suitable for sailors. You don’t have to splash the water of the beach to use this toilet. It does not require you to flush off human waste.

Nothing is more annoying for you than a toilet with a bad smell. The complete lack of bad odor makes it a great composting toilet. You don’t have to deal with the smelly environment if you use this composting toilet while traveling.

This composting toilet comes with an ergonomic design and suitable for both male and female users. It comes with waterless functioning capabilities. You don’t need any sewerage and plumbing system to deal with the waste.

Still not convinced?

If you are someone who is looking for a composting toilet with durable construction, this is for you. It is made from stainless steel which is strong and sturdy. It can stay with you for years to come.

Do you want more?

If you are looking for fast composting toilet this is the right choice. The hand crank agitator makes the composting process efficient. It makes the composting process quite smooth and easy.

Even if you are new to using a composting toilet, installing is not a hassle. You can follow the clear manual which instructs you how to use the toilet.


  • The unique design does not let you compromise on quality.
  • This composting toilet is ideal for tiny houses, small apartments, and boats.
  • You can get your toilet up and running anywhere you desire.
  • It comes with a hand crank agitator which helps smoothen the composting process
  • Installing and maintaining the composting toilet is not an issue.
  • It is a 100 % non-polluting and environment-friendly composting toilet.


  • You might find it tricky to use the hand crank agitator.
  • The seat is a little uncomfortable.
Nature’s Head Dry Composting Toilet
Our rating:4.4 out of 5 stars (4.4 / 5)

4 Sun-Mar Composting Toilet

Sun-Mar is a popular brand which produces top-of-the-line composting toilets. It comes with remarkable features which are different from its competitors.

This is the only composting toilet which is approved by the NSF or National Sanitation Foundation. It is completely safe and secure for the overall environment. Even if you use this toilet for 6 consecutive months, there won’t be any smelly or bad odors. This toilet is designed to deal with heavy usage.

If you like staying on the go, this is the perfect off-grid toilet for you. You can move it from one area to another without any hassle. It does not require any water supply. You can store the excrement conveniently to fertilize your garden.

The best thing about this composting toilet is that it comes with separate bins. It collects the liquids and solids separately. This makes the composting process easier.

In addition to that, installing the model is a piece of cake. It comes with a simple and minimalistic design. If you have limited space in your apartment, this is the perfect toilet. You can even take it along with you on the campsite. Sounds easy enough? It is a composting toilet which is quite easy to carry along.

When you take a composting toilet along with you, the last thing you want is to deal with is a bad odor. You don’t want the environment to get smelly. For this reason, you should choose the composting toilet with an amazing venting system. The bio-drum makes it an odorless composting toilet.


  • It comes with a stepping stool which adds to your convenience.
  • The NSF certification makes it a good choice for you.
  • This is a pest-proof toilet with an emergency drainage system.
  • It is a solid composting toilet which can be moved from one area to another.


  • The process of composting is a bit slow. You have to be patient to let the process finish.
  • The vent kit is not very durable.
Sun-Mar Composting Toilet
Our rating:2.7 out of 5 stars (2.7 / 5)

5 Sun-Mar Non-Electric Composting Toilet

This composting toilet is a convenient answer to your nature’s call. You can virtually set this toilet anywhere you desire. It neither requires any electricity nor any water supply. This is a product from Sun-Mar which is non-electric.

It comes with a composting system which allows you to put human waste in a good way. Instead of wasting it away, you can utilize it effectively. With the help of heat, this composting toilet converts the feces and urine in fertile soil.

This composting toilet comes with a solid and strong build. You can move it around anywhere you want. It comes with plastic and steel fittings. You need to make a screwdriver handy to put the unit together.

Furthermore, this is an odorless compost toilet which does not require any water. The best thing is that you don’t even need any electrical power to operate it.

This waterless toilet system comes with a certification of the NSF. You can continuously use it for 6 consecutive months.

Wait, there is more. You don’t have to scratch your head while installing this model. Installing is just a matter of putting the parts together. You can even attach an optional electric fan for ventilation.

Furthermore, the separate solids and liquids bin make the toilet easy for you to maintain. You don’t have to deal with any mess.

For your peace of mind, it comes with a 5-year warranty. Moreover, the company stands by the product. It also gives you a warranty for 3-years in its parts.


  • The compact and sleek design makes it suitable for small areas.
  • You can use it anywhere you want. You don’t need access to water and electricity.
  • The separate bins of liquids and solids make maintenance quite easier for you.
  • It comes with the certification of NSF.
  • The detachable footrest is an additional benefit.
  • This is a waterless compost toilet which is built to last.


  • This unit is not completely odor-free
Sun-Mar Non-Electric Composting Toilet
Our rating:3.3 out of 5 stars (3.3 / 5)

6 Sun-Mar Dry Toilet

This Sun-Mar compost toilet does not even require any plumbing or sewerage system. You can use this dry toilet with waterless Centrex 2000 and 3000 systems.

Moreover, it comes with a vent pipe that increases the air circulation in the system. With the proper ventilation, you are able to keep it odorless. If you set the system properly, you don’t have to deal with the bad odor in your washroom.

So you are on a hunt to buy the best compost toilet? Sun-Mar Dry Toilet is a good choice for you. It is a great composting toilet which lets you give back to the environment. It has an amazing compost system which helps you fertilize the plants of your garden.

That’s not all. . . The installation is also simple and easy. It is enough reason for you to choose this dry toilet for your bathroom. This is a space-saving unit which is suitable for a tiny house. You can even install it in your RV or boat.


  • One of the best aspects of this dry toilet is its ventilation system.
  • There is no smelly and unwanted odor.
  • It comes with a strong and sturdy built.
  • Comes with a bowl liner which is removable. You can easily clean it when needed.
  • The compact design makes it suitable for a small family.


  • You need an additional AF waterless kit to use the system.
Sun-Mar Dry Toilet
Our rating:4.6 out of 5 stars (4.6 / 5)

7 Nature’s Head Composting Toilet

Nature’s Head composting toilet brings together the latest technology in one product. Every metal part on this composting toilet is 100% stainless steel. This means you don’t have to worry about rust or tear.

This composting toilet is waterless so finding water source is no longer a problem. And that’s not all! Do you remember the unpleasant smells when you walk into your bathroom? Well, you can say goodbye to those with this product because it is odorless!

This toilet is constructed in such a way to ensure that bad smells do not have time to form. Moreover, any residual smell does not leave the toilet bowl thanks to the strong toilet seat.

Not only that but cleanup is effortless! This toilet requires minimal to no maintenance. The design of this toilet is superior to previous models in look and utility. But wait there’s more!

If the idea of using a composting toilet scared you in the past then you should try this one. Nature’s Head composting toilet is easy to install.

Nature’s Head composting toilet holds a comfortable capacity. If two adults are using one toilet full time then they will need to empty it after four to six weeks.

This composting toilet is easy to empty. It comes with clear instructions that detail how and it hardly takes five minutes.


  • Easy to use and comes with clear instructions
  • This composting toilet comes with a large capacity that will last you four to six weeks
  • It is also very easy to empty and hardly takes five minutes
  • Easy to install and maintain
  • With this composting toilet, you have a five-year warranty!
  • This composting toilet is odorless.


  • The vent has been known to malfunction
  • The residual can become a problem if you don’t immediately treat it
Nature’s Head Composting Toilet
Our rating:4.3 out of 5 stars (4.3 / 5)

What Is A Composting Toilet?

A composting toilet is not that different from a regular toilet. In that, both types of toilets are designed to accept our excrement. But the way in which a composting toilet is different is in what it does with our waste.

A normal toilet would merely collect both solid and liquid wastes and dump them into sewage. On the other hand, a composting toilet has been designed to prevent that very sewage.

A composting toilet separates solid waste from liquid waste. It comes with separate compartments to sort different types of waste. Not only has that but a composting toilet made your solid wastes safer to dispose-off.

The liquid waste is usually stored in a tank that can be easily emptied. The solid waste is dumped into a separate compartment with natural compost. There are different types of compost you can in your composting toilets such as sawdust, coconut coir or peat moss.

The natural compost treats your waste and removes dangerous toxins making it safer to dispose-off. A composting toilet does not require any water to eliminate any waste. It is also easier to install a composting toilet as you do not need to waste time looking for sewage lines.

Pros & Cons


  • If you’re used to traveling on boats and RVs then you understand the pains of an indoor toilet. Disposing-off that waste is grueling and time-consuming. Not to mention you have to live with that smell almost constantly.
  • A composting toilet takes little space and does not cause the same amount of hassle. Not to mention a composting toilet is also much easier to install. Unlike a normal toilet, you don’t have to worry about finding the right lines for sewerage.
  • With a composting toilet, you don’t have to worry about poisonous odors. A composting toilet makes sure to keep your wastes separate in order to prevent the smell.
  • A composting toilet is actually much easier to empty than your average black tank. Also, composting toilets are generally easier to maintain.

  • Composting toilets are recommended more and more because of what they can do for the environment. For one thing, a composting toilet does not need water to dispose of waste.
  • And for other composting toilets prevent our waste from turning into a biohazard. A composting toilet does this in two ways. It does so by separating the solid wastes from liquid wastes and by treating the solid waste.
  • A composting toilet is also much easier to empty.


Now when we talk about cons let’s state some of the obvious. There are plenty of people out there that actually like using water to clean up afterward. And that’s not really possible with a composting toilet.

  • As we said earlier a composting toilet comes with a separate tank that stores liquids. So even if you decided to use water to wash the smell down it is not recommended. As that water will mix with the liquid waste and go down into the tank. Thereby it uses up the capacity of the tank that much faster.
  • Also, a composting tank depends upon a vent to air out any smells within the toilet bowl. If you have more than a person using your composting toilet then the built-in vent might not be effective.

Types Of Composting Toilets

There are basically three different types of composting toilets:

  • Self-Contained Composting Toilets

Self- contained composting toilets are the ones that are directly installed in your bathroom. They come in one piece altogether. And they can be further divided into two types these types: electric and non-electric.

The electric self-contained units usually come with a built-in vent that is used to release residual smells out. The electric units also generally have larger waste tanks than their non-electric counterparts. This is because they need greater space to increase air movement and bacteria action.

Self-contained composting toilets do not require water or water lines in order to function. They do not need to be connected to sewerage lines. They are easier to use during winter time and are easier to clean.

Self-contained units usually come with an extra coating of protective covering.

  • Central Composting Toilets

Central composting toilets usually come in two parts. You have the traditional toilet seat complete with an option to flush with water. But this toilet is attached to a relatively more eco-friendly disposal system. These types of toilets also come in two types:

  • Central Composting Toilet Systems With Water

These toilets usually have a flushing liquid which makes them like traditional toilets. But they are also connected to a composting unit. Usually, there is a pipe running beneath the toilet that takes the waste from the toilet to the composting unit.          

  • Central Waterless Composting Toilet Systems

There is one more type of central composting toilets and that is one that is waterless. Waterless composting toilets also consist of a traditional toilet seat attached to a waste disposal system.

The waste is vacuumed from the toilet seat through a pipe into a composting system. This type of central composting toilet system almost always maintains air flow in the toilet. The air flow helps to move the waste along the pipe.

And this air flow also helps move any unpleasant smells along as well. Such toilets are most useful in areas where there is a water deficit. These toilets are also useful on RVs, boats and moving homes as they do not need a constant supply of water.


Whether you have a small house or a small bathroom a composting toilet definitely saves on space. If you’re undecided about composting toilets because you like traditional toilets then we have a solution for that too. Composting toilets now come in different designs to allow you to pick one that is more to your preference.

Now it’s time to declare the winner of this roundup. For me, Self-Contained Sun-Mar model stays on top. This is the only NSF approved composting toilet that is completely safe and secure for the planet. There won’t be any bad odors even with 6 months consecutive use.

The separate bins allow it to collects the liquids and solids separately that makes the composting process easier. This model can help cut down on the amount of water we need and prevent horrible smells beyond (or even in) the bathroom.

As the planet changes, we need to learn to change as well. As we discussed earlier there are definitely better ways of doing things nowadays. A composting toilet isn’t just good for the environment. It can prove to be very useful to us in more than one way.

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