5 Best Composting Toilet Reviews 2024

Saving the environment and contributing to nature seems like the talk of the town these days. People from all types of beliefs understand and care for nature. Wherever possible, people also take necessary steps to ensure that the contribution to nature is going smoothly. When talking about nature, it’s impossible not to talk about composting toilets. However, hundreds and thousands of people don’t even know how a composting toilet work.

What is a Compost Toilet?

Compost toilets are basically toilets that contribute to nature without the use of water. These toilets decompose human waste to contribute to the environment. They are also very small and compact. The use of composting toilets was made famous by rest stops mainly situated at roadsides. Composting toilets were used in such areas because of the lack of drainage systems.

How Does a Composting Toilet work?

The design of a composting toilet contributes to the environment by decomposing the waste and getting rid of the unpleasant odor. For all of this to work, an electric supply is very important. This is how these ‘dry toilets’ mainly work.

The market is currently filled with some of the best composting toilets. Each of the composting toilets that are currently invading the market happens to provide excellent features that help not only you but nature as well. However, not many people know how to choose the right product for themselves, which is why they surf for composting toilet reviews. But not many reviews do justice to the situation. Well, lucky for you, we’ve come up with some of the best composting toilets in the market for you. These toilets not only help you get rid of a drainage system at home, but they are also brilliant at helping the environment.

So, you know the answer to, “how do composting toilet works?” Now, you may be thinking, “Which composting toilet should I choose?” You can choose one from the vast list of composting toilets that we’ve reviewed below. So, without further ado and in no particular order, let’s review the top 5 composting toilets in the market today.

ImageProduct DetailsPriceMy Ratings
Sun-Mar Compact Self-Contained Composting ToiletSun-Mar Compact$$$$7/10
Nature's Head Self Contained Composting ToiletNature's Head Self Contained$$$8/10
Thetford 92360 Porta Potti 550E CurveThetford 92360 Porta Potti 550E$$$9/10
Sun-Mar Excel Non-Electric$$$$7/10
Nature's Head Dry Composting ToiletNature's Head Dry $$$9/10

Sun-Mar Compact Self-Contained Composting Toilet

Sun-Mar Compact Self-Contained

Sun-Mar is no ordinary name for someone who has been shopping for composting toilets for RV. The company is currently a top provider of self-contained composting toilets and is perhaps one of the very few that can be included in the top 5 providers of self-composting toilets.

The Sun-Mar Composting Toilet is easily one of the best there is in the market right now. With the excellent decomposition of human waste, this product has a lot of cool features up its sleeve that not many are aware of. Let’s start with the best ones. I’ve personally used this composting toilet to make sure that the review is in-depth and provides the customer with pretty much everything they need to know. Let’s start with some of the few things listed below as the main features and then we’ll move on to the specifications.

Main Features

The first main feature that we’ll be talking about is the waterless toilet that self-contained electrical consumption. No water, no problem! This toilet was made to make sure you’re getting pretty much everything you need at the best price, and it shows. Sun-Mar is one of the few providers that made sure the electrical consumption is up to the mark, which is partly why the price tag of the product is considerably higher than the rest of the toilets on this list. However, for the features it provides, it is just the right price.

The product also features a patented Bio-drum that is good enough for the use of three people if they use it on the weekends or one person if they use it continuously. Additionally, this is one of the few products that is certified by the NSF for a use of 6 months, and that’s saying something. Now let’s move further toward the specifications of the product.


  • Exclusive 5-year warranty on the shell and a 3-year warranty on the parts, which is more than any other product on the list.
  • Small size (21-1/2″ W x 33″ D x 28-1/2″ H) that is fit for anyone and saves you space around the house.
  • NSF -certified for 6 months, which means the product has the best possible certification for usage that’s currently possible.
  • ODORLESS operation allows the toilet to stay as fresh as it can be. It is perhaps one of those toilets that don’t let your home stink.
  • Features 3-chamber technology that not only helps you keep everything odorless at all times, but it also allows you to decompose your waste and vent it out with an aerobic action.


All in all, an excellent product that allows you to make the most of helping nature out. The price tag might seem high at first, but considering the features of the product, it just might be the perfect thing that you may need to replace your traditional toilet. An excellent 5/5 for this product from our end.

Nature’s Head Self-Contained Composting Toilet with Close Quarters Spider Handle Design

How can you talk about nature without talking about Nature’s Head? Nature’s Head is currently one of the best providers of self-composting toilets not only in America but also in the whole world. It is perhaps one of the best product providers that focus on providing nature-loving customer with something to replace their toilet with. It provides the customer with replacements that actually help the environment as well. This is part of the reason why the company has named itself Nature’s Head and is currently in the works to get things going for itself with even newer products. The new products are set to be released at the end of the year. For now, let’s talk about the Nature’s Head Self-Contained Composting Toilet.

Nature’s head composting toilet has been around for a while now and is currently one of the highest-rated self-contained toilets on the market. Let us talk about the main features of the product first and then move toward a detailed analysis with all the specifications.

Main Features

For starters, the product is made in the USA and naturally is one of the best products in the country. Additionally, it is competing with many European suppliers as well and is ranked among the top 5 products all over the world. The product is made of all stainless steel hardware which means not only is the product durable, but it can also be cleaned very easily as compared to competing products. The product also features a full-sized elongated seat for comfortable seating. Are you a nifty camper? Well, this is just the product for you!

Another main feature of the product is that it disassembles very quickly. It is one of the best products out there that can easily be assembled and disassembled in a matter of minutes. The product also includes a vent hose and a fan so that hygiene is perfectly maintained.


  • Eco-friendly design and decomposition system allow you to easily use the toilet without any hesitation.
  • 2-gallon storage for human waste allows it to decompose easily and be used on long routes.
  • Easy cleanup and stainless steel allow you to make sure all the hygiene is maintained at all times.
  • Reverse fan action allows you to make sure that no odor is ever to be part of your RV, camping area, or wherever the toilet is mounted.
  • No water, no problem! An excellent decomposition system makes sure your waste is taken care of even without a drainage system included.


We used the Nature’s Head Composting Toilet to make sure the review is in-depth and connects to whatever the user needs. A 5-star product with no big downside and a price tag far better than that of the Sun-Mar product. Order it today while it lasts!

Thetford 92360 Porta Potti 550E Curve Portable Toilet

Thetford 92360 Porta Potti The Thetford 92360 Porta Potti 550E Curve Portable Toilet is undoubtedly our favorite product on this list and is perhaps the best one to use as well. As funny as its name may sound, you must have noticed in many reviews for the Nature’s Head composting toilet that this is a close competitor. It is perhaps one of the very few composting toilets out there that are abiding by their word of durability and ease of use. But is there something we missed out on? Yes, portability! These three key features allow the Thetford Porta Potti to be one of the top toilets to exist.

Portability with this toilet is guaranteed to perfection.

It is one product that allows the user to make sure their toilet replacement is number 1 at all times. From the decomposition process that works like a charm to special features that most of the products on the market don’t provide, this is perhaps a product that doesn’t miss out on anything. Let us now discuss all of the main features and then let’s move on to the list of specifications for the Thetford Porta Potti.

Main Features

Let’s start off with one of the main features of the product that many others don’t focus on i.e. the design. Where other competitors miss out on the fact that the design is an excellent factor that needs to be taken care of, the Thetford Porta Potti features a sleek home-like design that is perfect to work with and takes care of comfort.

It is one product that makes sure all the boxes are ticked when it comes to durability as well. An increased bowl size and a toilet paper holder are excellent options as well that allow you to get the best out of your composting toilet. All this and no electricity bills to worry about. That’s right, this product comes equipped with a battery-powered flush system. The small size of the product never lets it compromise your comfort each time you sit and use it.

Let’s move on to the specifications list to see what features are hidden in this product.


  • An excellent battery-powered flush takes extra care of your hygiene. This is one feature that its competitors don’t provide for now.
  • With tons of hidden controls, the Thetford Porta Potti makes sure no extra human effort is put in when you’re at peace in the restroom.
  • A comfortable seat height allows the user to easily use the restroom without any seating issues.
  • It also comes with a ready-to-use optional hold-down kit, if necessary.
  • An excellent 1-year warranty binds the user to the product.


Our verdict? An amazing product! While the price tag may bother some people, they can’t let go of the fact that the Thetford Porta Potti comes with some amazing features that can’t be replaced by any other product on this list.

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

What defines a brand that is reliable enough to buy? Well, that has to be a brand that makes it to a list of top 5 products not once but twice for two of Sun-Mar Excel Non-Electric Self-Contained its products. That is exactly what Sun-Mar does by entering the list for not one but two of its products, this time with the Sun-Mar Excel Non-Electric Self-Contained Composting Toilet. The giants in this industry understand perfectly what their customers are looking for. This is partly why the Sun-Mar Excel Composting Toilet is currently leading the market along with its sister product mentioned above.

Where both the Sun-Mar products are equal in some areas, there are many other features that differentiate this product from the rest. Let’s talk a bit more about this product in the main features section and then further talk about the product’s specifications.

Main Features

Like to keep it ‘off the grid’? Well, this is just what you’re looking for. The Sun-Mar Excel Composting Toilet is a non-electric toilet replacement that you can use with ease. The product comes with low-profile units that would complement any restroom at any given place. From a forest near a camp to an RV that’s on the road at all times, this is an excellent replacement that works seamlessly.

This is another product that comes with a Bio-drum similar to the first Sun-Mar product that we talked about. However, this variable diameter Bio-drum with a recessed handle processes compost far better than the other options, even its sister product.

Have a big family? No problem! The toilet is good enough for a family of 2-3 people. Similarly, if it’s to be used on the weekend on a camping site, then it’s good for a family of up to 5-7 people. Hate odors? That won’t be a problem with this product either. Let us dive into details in the specifications section to see what else the product has to offer.


  • It has excellent composting capacity amongst all other competitors. That’s right, the Sun-Mar Excel Composting Toilet is fit for the continuous use of 2-3 people or weekend use for 5-7 people. Have a big family that you like to camp with? This is the perfect addition to your next camping trip.
  • The non-electric unit provides for better composting and cleaning without any issues. It is also an excellent odorless machine that keeps it fresh for you at all times with the help of a 4” vent. (Note: the vent needs to be fitted 2-3 feet away).
  • The small and compact height (31 1/2″ by 22 1/2″ by 33 1/2″) is perfect to keep your RV or camping area spacious enough. It is comfortable enough for any user to sit on and is compact enough to be kept at any specific place.


It is a great product all in all that takes care of most needs. Personally, we are a fan of battery-based or fan-based products, which this one isn’t. However, after continuous use for quite a few days, this product turned out to be an excellent addition to your household, RV, camping area or pretty much anywhere you want to use it.

Nature’s Head Dry Composting Toilet with Standard Crank Handle

Nature's Head Dry Composting Toilet

Where one major brand made it to the list twice, is it necessary that a direct competitor won’t? Of course not! With its second product in the list of top 5 products, Nature’s Head proves to be an excellent product provider as well. It is easily one of the best brands in the world right now and is in direct competition with Sun-Mar for its products. What needs to be realized is the fact that the Nature’s Head Dry Composting Toilet might just be the best product on the list. It is an easy-to-use product that allows you to make sure that you are getting the most out of your composting toilet to help the environment.

As the name says, Nature’s Head is currently in the lead for products that are loved by customers and are rich in features as well. Let us focus a bit more on this composting toilet and see how it works. In this review, we will also provide you with the main features of the product, the in-depth specifications of the product, and, last but definitely not least, our stance on the product. So, without further ado, let’s talk about the main features of the product.

Main Features

Let’s start off with how this product stands apart from the rest on this list. For starters, the Nature’s Head Toilet features a fast composting process. The hand crank agitator makes sure that the decomposition of human waste is done as fast as possible. Furthermore, the molded design makes it as elegant as can be and extra durable. The compost storage is excellent, and the separation of urine and waste is done seamlessly with no leakage anywhere in the design as reported by many for other competitive products.

The design of the product also makes it easy to clean and allows odorless decomposition. Still, smell something? The Odor Eliminating system makes sure you don’t. The vent and fan make it easy for you to get rid of odor easily without compromising on quality. Moreover, a 5-year warranty protects your investment.

Now, let’s dive deeper into the specifications of the product, shall we?


  • Reduced water consumption allows the Nature’s Head Dry Composting Toilet to take care of your hygiene in the most nature-friendly way possible.
  • The Odor Eliminating system installed makes sure you don’t have to deal with any foul odors with the help of a vent and a fan.
  • It is perfect for homes, boats, RVs, cottage houses, cabins, and pretty much any area that may be possible due to its compact size.
  • Compost storage is very spacious as well. The compost area can store compost for between 60-80 uses. The urine area is also capable of storing around 2.2 gallons of urine.


If there’s one product that provides value for money, it’s definitely Nature’s Head Dry Composting Toilet. After personal use of the product, we fell in love with it instantly. It’s small, it’s durable, it’s affordable, and it’s spacious. What more could you possibly ask for? Say goodbye to your old toilet and say hello to the best composting toilet in town. For customers on a budget, this just might be the best solution that they are looking for.

YouTube video


After personally using several other products, we prepared this list of the 5 best composting toilets. We wanted to make sure that all of the products are perfect in every area. From compatible features to excellent compost storage areas, these five products are second to none. With the list of specifications, it will be easier for you to choose from and it will be easier for you to come to a conclusion. We personally assure you that all 5 of these products are five-star products and do not lack in any area whatsoever. We personally rate all of the products equally as each customer has different needs, and there’s something here for everyone. Order your choice toilet today!

Leave a Reply