5 Best Composting Toilet [Reviews+Buyer's Guide]

So when we decided to review the top performers, we only chose composting units that are easy to use, well-constructed, and, most importantly, give you the best value for money. Also, since we wanted to separate the paydirt from the stinkers! We went through several options to find the most hygienic and odorless toilets.

And it was only after countless hours of research and discussion with experts, we narrowed down to 5 best composting toilets that will perfectly serve your purpose.

Now further ado, let's begin, shall we?

Best Composting Toilets

Here's the list of the 5 best composting toilets for your home or RV. Embrace sustainability and affordability with these exceptional options.

1. Nature's Head Composting Toilet with Spider Handle - Best for Compact Spaces

This model from Nature's Head is our top choice and the overall best-performing composting toilet, in our opinion. Although it was initially designed for marine use, the unit is suitable for all compact and tight spaces. So if you need an environment-friendly toilet for your boat or RV, we recommend this high-performance product as it also comes within an affordable price range.

Nature's Head Self Contained Composting Toilet with Close...

No one - and I mean no one - will beat my customer service...
Easy to install by any reasonably handy person.

Why Did We Like It?

First and foremost, we like the innovative design of the toilet, which can essentially work in any compact space. And since the unit doesn't require a sewage or water supply connection, the installation process is a breeze.

Furthermore, this is probably one of the most durable models on the market and comparatively quite lightweight. And both these features are practically indispensable for people who mostly live life on the road.

Apart from that, we like how easy it is to remove and empty the waste containers. All you've to do is unhook the clips on either side of the liquid tank and then simply take it out by the handle. However, this is not a chore that you've to do often as the container can last for about 90 uses before it needs emptying.

But the smartest feature on this toilet is the spider handle that is cleverly engineered for use in compact spaces and can be mounted on either side of the unit.

What Could've Been Better?

The toilet seat can be a tad uncomfortable if you have to engage in a particularly long session. Especially for tall users, the space on the seat can be a bit too cramped and hard to sit on for long. Other than that, we are very pleased with the product as it can do the job without requiring a lot of maintenance.

Pros

Quick and easy installation
Easy to disassemble container
Spider handle can be mounted on either side
Can last for 90 uses at a time

Cons

Toilet seat is a little uncomfortable

2. Separett Villa 9215 AC/DC - Best for Electric Convenience

The Separett Villa 9215 model is one of the best electric composting toilets available in the market. It comes equipped with a single-speed electric fan that can be easily powered by the DC supply from a battery pack, solar panels, or wind turbines. Likewise, it can also run on AC power if required.

Separett Villa 9215 AC/DC 12V Urine Diverting High Capacity...

Waterless and odorless toilet for on and off grid
High quality, made in Sweden, 5 year warranty

Why Did We Like It?

Let's just start by saying that this high-performing product features a unique pressure-sensitive seat. The moment it senses an individual sitting down, it will open the solid waste bin and later rotate the waste so that the contents are mixed. Consequently, the process streamlines the waste decomposition process and does not require the manual operation of a handle.

Besides, the fact that it doesn't include a handle for mixing the contents means that it is truly space-saving and ideal for use in a small bathroom. Other than that, we like the simple procedure involved in emptying the waste bin. Unlike in other electric toilets, in this case, all you've to do is remove the toilet seat layer and then put the lid on the waste container to seal the bin.

However, the most functional aspect of this unit is the separate containers for solid and liquid waste that prevents smells. This way, even if you decide to live off the grid, you'll never have to deal with unpleasant toilet odor.

What Could've Been Better?

This model is quite a throne for the bathroom, at least price-wise. You may have a royal time using it, but it surely is one heck of a pricey unit. That being said, we recommend using this if you are too squeamish about manually operating the handle on a composting toilet.

Pros

Compact, space-saving design
Self-composting model
Separate containers for solid and liquid waste
Easy and quick waste removal

Cons

Very expensive unit

3. Porta Potti 565E White Thetford Corp - Best for Portability & Affordability

As funny as the brand name may sound, this unit is a top-of-the-line composting toilet suitable for use in RVs, boats, trucks, camping, and off-the-grid ventures. Furthermore, it is a low-priced model with a futuristic design that has all the desirable features you'd want in a portable toilet.

Porta Potti 92306 White Thetford Corp

VERSATILITY: Award-winning, top-of-the-line portable toilet,...
DESIGN: Sleek, modern, and homelike look, Porta Potti Curve...

Why Did We Like It?

First off, we want to highlight the aesthetics of the 565E as it looks very similar to a space pod. Furthermore, the design features of this unit, including the spacious bowl size and the adequate seat height, take care of the user's comfort and ensure maximum durability.

Apart from that, we like that this model eliminates a lot of unnecessary guesswork as it comes equipped with a tank level indicator to prevent overflowing. Also, the tank compartment features an easy-to-carry handle for simple and efficient disposal. Besides, with this composting unit, there are zero chances of leakage or odor as the toilet includes a sealed valve.

However, what we like best is that the product comes with a battery-powered flush system that allows you to use it anywhere with no power supply. The unit itself can hold 4 gallons of fresh water and 5.5 gallons of wastewater, which is a good capacity for a portability model like this.

What Could've Been Better?

We are, for most parts, satisfied with this unit's performance and design. However, we feel that sitting on this toilet could be a little awkward for tall people as there is no space to tuck their feet in. But that is not a major inconvenience as this Porta Potti item is still one of the most practical non-electric toilets available.

Pros

Futuristic and sleek design
Equipped with a tank level indicator
Portable unit with easy-to-carry handles
Comes with a battery-powered flush system

Cons

Could be a tad uncomfortable for tall people

4. STANSPORT Portable Camp Toilet

If you did not like the price tag on our previous item, you'll surely appreciate this option. That being said, this portable toilet from Stansport is genuinely a bathroom on the go and also the most affordable product on our list. So if you're on a shoestring budget and need a composting toilet for your next camping trip, this is a great buy.

Stansport Easy-Go Portable Camp Toilet (273-100) 14" L x 14"...

Bathroom ON-THE-GO Take the comfort of a commode wherever...
The Sanitary Alternative Not only will you raise yourself...

Why Did We Like It?

For a budget composting toilet, this product works incredibly well and brings together all the amenities of a private restroom in one portable unit. But what we like best is that this model comes lined with disposable composting bags.

Moreover, these bags are biodegradable and have to be disposed of after each use. So If you don't mind making frequent trips to empty the commode, then using this Stansport item works as a great alternative to conventional composting toilets.

But that's not all! We also like how sturdy and well-made it is as it features a full-size seat and built-in handles that allow you to carry the product with ease. Furthermore, this unit can handle a weight of up to 350 lbs, which makes it more of an inclusive, one size fits all item.

Lastly, for a composting system at a fraction of the cost, give this luggable unit a shot for your next camping trip, RV ride, or weekend at your off-grid cabin. We are sure that you'll appreciate this clean and sanitary alternative while staying close to nature.

What Could've Been Better?

Don't get us wrong, it is a very functional and sturdy composting toilet. However, it is not meant for long-term use. While its small size and dependence on biodegradable bags make it unsuitable to serve as a full-time composting toilet, it's still a good alternative for short-term use or occasional needs.

Pros

Compact and portable design
Comes with biodegradable bags
Feature a full-size seat and built-in handles
Can support weights up to 350 lbs

Cons

Unsuitable for full-time use

5. Camco Portable Compost Toilet

Now that we've reached the end of our list, we would like to finish off with another budget option, and this time from the house of Camco. This portable composting toilet is designed to make life easier while camping, boating, or touring on the RV. Hence, if you need a low-cost, reliable unit for your close-to-nature escapades, this is one of the best options.

Sale

Camco 5.3-Gallon Portable Travel Toilet - Features...

Portable Travel Toilet: Provides a convenient bathroom spot...
Stops Leaks and Odors: The locking lid helps prevents spills...

Why Did We Like It?

First and foremost, keeping solid and liquid waste separate is an important aspect of compost toilet technology. And this Camco toilet attempts to do it by keeping the flush tank disconnected from the waste storage tank. Besides, these two compartments are linked by two secure latches that prevent contamination.

Moreover, these latches are cleverly designed to keep the toilet seat from sliding off while in use. However, their mechanism is quite easy to slide apart when you want to empty the 5.3-gallon waste tank. Furthermore, the sliding valve that separates the two tanks is both waterproof and odor-proof.

Therefore, you can lift the entire unit without worrying about smelly accidents. Other than that, this toilet holds 2.5 gallons of fresh water and only uses a few ounces per flush, unlike conventional systems. Lastly, this model has a very comfy seat and is easier to clean and maintain compared to other portable units.

What Could've Been Better?

We are more or less satisfied with the performance of this unit, but the design of this Camco item is not the most practical. We don't like that this model is top-heavy as it can easily tip over and create a mess. So make sure that you install it in a secure location or pack it safely if you are taking it for a camping trip.

Pros

Separate flush and waste storage tanks
Uses a few ounces of water per flush
Features a comfy toilet seat
Easy-to-clean unit

Cons

Top-heavy model; can tip over easily

Best Composting Toilets Comparison Table

Product	Dimensions	Weight	Weight Capacity	Seat Material	Color	Warranty
Nature’s Head Composting Toilet	22" x 20.5" x 21.7"	28 lbs	300 lbs	Plastic	White Granite	5 Years
Separett Villa 9215	22.6" x 22.4" x 26.4"	44 lbs	N/A	Plastic	White	5 Years
Porta Potti 565E White Thetford Corp	17.7" x 15.2" x 17.6"	13.45 lbs	N/A	‎Plastic	White, Gray	3 Years
STANSPORT Portable Camp Toilet	14" x 14" x 14"	9.3 lbs	350 lbs	‎Plastic	White, Green	1 Year
Camco Portable Compost Toilet	16.25" x 16.25" x 17.5"	11.5 lbs	330 lbs	Polyethylene	Gray	1 Year

Buying Guide For The Best Composting Toilet

With composting toilets, the more you know, the better as you do not want to be stuck with an unsuitable one. That's why we put together this comprehensive buyers' guide so you can figure out which one among the 5 excellent options works best for you.

We have carefully listed out the various factors you need to consider when investing in a composting toilet.

Read on to know more.

Self-contained, central, or bucket style

The primary difference between the first two options is that the self-contained unit composts the waste within the tank connected to the toilet. Whereas the central system connects the toilet to a larger tank in a different location.

Therefore, self-contained models are a better choice for small households and compact locations. Conversely, toilets connected to a central unit work better for larger groups, since it has a larger capacity to compost more waste.

But if you need something more portable and low-maintenance for your next camping trip, the bucket-style model is a great versatile option. However, bucket toilets take a little longer to compost everything compared to the other two options.

Capacity

The capacity of the toilet is an important consideration as it indicates how much waste it can hold and process without overflowing. Furthermore, the capacity you need will largely depend on how frequently it will be used, and by how many people within a given time frame.

If you need a toilet for your remote cabin that is not frequently visited, and will be most likely used by a few people, then you can get a lower-capacity unit. If, however, you are looking for a toilet for residential application, you might want to purchase a larger capacity toilet that'll sustain heavy use.

Maintenance

Conventional toilets do not demand a lot of maintenance. But that's not the case with these eco-friendly options as you've to literally take out the trash and clean the unit for subsequent use. Besides, if you invest in an electric model, you will need to regularly check up on the connections, as their failure could result in the toilet malfunctioning.

Price Range

Going through our itemized reviews, you already know that composting toilets come in a wide range of prices. Obviously, they are far more expensive than their traditional counterparts, mainly because they are a bit more technical to build. That being said, you can opt for a central system if you want to accommodate a bigger family, even though they are quite pricey. Alternatively, you can look for budget options if you need a toilet for short-term use.

Composting Toilets FAQ's

When properly installed and maintained, composting toilets should not produce any unpleasant odors. However, if they are not managed correctly, they can develop a strong odor. The key to preventing odors is to ensure that the toilet is adequately ventilated, and that the composting chamber is well-aerated.

Composting toilets require regular maintenance to ensure that they function correctly. This typically involves removing the compost from the chamber once it has fully decomposed, and then cleaning the toilet with a non-toxic cleaner. It’s also important to regularly add bulking material to the toilet to aid in decomposition.

Yes, composting toilets can be used in cold climates, but they require additional insulation to prevent freezing. Some models also feature electric heating elements to keep the composting chamber warm.

The compost produced by a composting toilet can be used as fertilizer for non-edible plants, such as trees and shrubs. However, it should not be used on edible crops, as it may contain harmful bacteria. Additionally, some municipalities may have regulations regarding the disposal of human waste, so it’s important to check local laws before using compost produced by a composting toilet.

The frequency of emptying a composting toilet depends on several factors, including the size of the toilet, the number of people using it, and the usage pattern. Generally, most composting toilets require emptying every few weeks to a few months.

No, composting toilets are designed to conserve water. They do not require any water for flushing and use very little water for cleaning. This makes them an environmentally friendly option for areas where water is scarce or expensive.

Conclusion

Thank you for reading our article on composting toilets! Your keen interest in finding the perfect eco-friendly toilet solution deserves our utmost enthusiasm and appreciation. With such a diverse range of available products to choose from, we're excited to share the best options on the market to suit various preferences and requirements.

Out of these 5 best composting toilets, here are our top three recommendations:

For the overall best-performing composting toilet, Nature’s Head Composting Toilet with Spider Handle is an ideal option. Its innovative design, durability, and ease of use make it perfect for boat or RV living. The spider handle is a smart feature that allows for greater flexibility in compact spaces.
Best suited for those who prefer electric options, Separett Villa 9215 AC/DC is a good option. This high-end electric composting toilet comes with a pressure-sensitive seat, self-composting system, and separate containers for solid and liquid waste to maximize odor control while minimizing space requirements.
Finally, for users looking for a portable and affordable solution, Porta Potti 550E White Thetford Corp is the right choice. Its sleek design, coupled with features such as a tank level indicator, easy-to-carry handles, and a battery-powered flush system, make this composting toilet suitable for various outdoor activities and off-grid living.

As you continue to explore the world of composting toilets, remember that our planet's health depends on the small yet significant choices we make every day. Choosing the right composting toilet not only contributes to environmental conservation and sustainability but also enriches your eco-conscious lifestyle. Happy composting, and may you find the perfect match for your sustainable living journey!

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