Top 4 Best Composting Toilets Reviews

Our best composting toilet reviews for a good compost and toilet

It is important to understand that contributing to nature and saving the environment is the indispensable nowadays due to numerous regulations you have to follow.

People from all over the world decided that it is important to care and understand the nature. Therefore, they ensure that you take necessary steps to reduce waste, which is the number one reason for environmental problems.

The advancement in technology brought us these modern toilets to create compost. We decided to present you our list of the top composting toilet comprehensive review and buying guide that you can find on the market.

Sun-Mar Excel Self-Contained Composting Toilet, Model# Excel
Sun-Mar Compact Self-Contained Composting Toilet, Model# Compact
Best Overall
Nature's Head Self Contained Composting Toilet with Close...
Nature's Head Dry Composting Toilet with Standard Crank Handle
Title
Sun-Mar Excel Self-Contained Composting Toilet, Model# Excel
Sun-Mar Compact Self-Contained Composting Toilet, Model# Compact
Nature’s Head Self Contained Composting Toilet with Close…
Nature’s Head Dry Composting Toilet with Standard Crank Handle
Rating
Prime
Sun-Mar Excel Self-Contained Composting Toilet, Model# Excel
Title
Sun-Mar Excel Self-Contained Composting Toilet, Model# Excel
Rating
Prime
Details
Sun-Mar Compact Self-Contained Composting Toilet, Model# Compact
Title
Sun-Mar Compact Self-Contained Composting Toilet, Model# Compact
Rating
Prime
Details
Best Overall
Nature's Head Self Contained Composting Toilet with Close...
Title
Nature’s Head Self Contained Composting Toilet with Close…
Rating
Prime
Details
Nature's Head Dry Composting Toilet with Standard Crank Handle
Title
Nature’s Head Dry Composting Toilet with Standard Crank Handle
Rating
Prime
Details

Last update on 2019-08-24

Best Composting Toilets Reviews

SUN-MAR COMPACT SELF-CONTAINED COMPOSTING TOILET

If you want to choose a good composting toilet that will provide you peace of mind, we recommend you to consider Sun-Mar Compact Self-Contained Composing Toilet. You should have in mind that Sun-Mar is one of the most prominent brands when it comes to composting toilets.

It is one of the best solutions for composting toilet that you can find on the market, with the amazing decomposition of individual waste that will reduce the hassle. At the same time, it contains numerous features that will help you work with it.

The first thing that we have to mention is that contains self-reliant electrical consumption. You don’t have to worry, because this particular toilet will make sure that you get a perfect price for the investment.

It features Bio-drum which is amazing so three people can use it without any additional problem. You should have in mind that it features NSF certification for six months use.

You will get a five-year warranty on the shell, one of the longest warranty for  composting toilet and a three-year warranty on parts, which is a way better solution when compared with other composting toilets on the market. It features small size, which will fit anyone and save you additional space in your home.

The great thing about it is a completely odor free operation that will provide you the possibility to enjoy the freshness. Due to 3-chamber technology, everything will be odorless all the time, so you will be able to decompose waste through aerobic action, one of the best composting toilets .

In overall, Sun-Mar Compact Self-Contained Composing Toilet is a great solution if you are looking for a good composting toilet that will protect your home against frustrating odor and help the environment out at the same time. Even though the price tag is high, you will get amazing features and great warranty deal. Finally, you will get something that will last at least a few years after purchase.

Amazing Features:

-Dimensions are 21-1/2-inches in width, 33-inches in length, and 28-1/2-inches in height.

-Finally, everyone will be able to fit it without too much hassle.

-5-year warranty on shell and 3-year warranty on parts

-Completely odorless operation due to 3 chamber technology

-It contains NSF certification, so you will be able to use it for years that will come

PROS

  • Self-sufficient electrical consumption
  • 3-chamber technology for odorless operation
  • Longest warranty deal on the market
  • Bio-drum feature
  • Environment-friendly

CONS

  • Expensive price tag
  • Installation hassle

SUN-MAR EXCEL SELF-CONTAINED COMPOSTING TOILET

Sun-Mar Excel Self-Contained Composting Toilet, Model# Excel
  • NSF CERTIFIED – First self-contained, composting toilet to be certified by the National Sanitation Foundation.
  • ZERO ODOR – A 2-inch vent in the back runs out of the house, which keeps your home clean and odorless.
  • USES NO WATER – This is a completely water-free system, saving the planet while saving you money.

Last update on 2019-08-24

We have to mention another Sun-Mar for our top composting toilets list because this particular brand is one of the most popular on the market. The thing that defines brand is that you will find two products on the list of four best products on the market.

Sun-Mar Excel Self-Contained Composting Toilet is similar as the first product we’ve mentioned above. Even though they’re equal in some areas, some features differentiate them from the rest.

The first thing that we want to mention is that you will get what you’re looking for with this particular composting toilet. It is a non-electric replacement that you will be able to use without too much hassle.

It comes with low-profile units that will fit any restroom wherever you want to place it. It is a great product that features Bio-drum, which is similar to the first Sun-Mar product we reviewed for our composting toilet list. However, the diameter is variable, and it features handle processes compost, which is a better solution than the one we’ve mentioned before for a good composting toilet.

It doesn’t matter if you have a big family, because it is perfect for a family of 2 to 3 people. You can also use it on camping sites, and then you will be able to use it without any additional problem. If you hate odors, you can rest assured, because you will be able to enjoy all the way.

It is important to mention that it features one of the best composting toilets capacity when compared with other toilets on the market.

In overall, Sun-Mar Excel Self-Contained Composting Toilet is a great solution that will handle most needs. It doesn’t have electronic features, but it is still a great deal that you can use wherever you want.

Amazing Features:

-Dimensions are 21-1/2-inches in width, 33-inches in length, and 28-1/2-inches in height.

-Finally, everyone will be able to fit it without too much hassle.

-5-year warranty on shell and 3-year warranty on parts

-Completely odorless operation due to 3 chamber technology

-It contains NSF certification, so you will be able to use it for years that will come

PROS

  • Excellent design
  • Easy to clean
  • Great size and height

CONS

  • It lacks advanced, tech features
  • You have to fit vent at least 2 feet away from the toilet

NATURE'S HEAD SELF CONTAINED COMPOSTING TOILET

Nature’s Head Self Contained Composting Toilet with Close…
  • Proudly made in the USA
  • All stainless hardware
  • Full size elongated seat for comfort
  • Disassembles in seconds for emptying
  • Vent hose and fan included

Last update on 2019-08-24

Finally, we’re here to present you a different brand than first two when it comes for a composting toilet solutionYes, we’re talking about Nature Head, which is one of the most popular manufacturers in the USA.

Their main idea is to create products that will provide you with a completely nature-friendly feature, which is much better than traditional toilets. It is important to mention that it comes directly from the USA, which is why most people tend to purchase it due to domestic reasons.

It features stainless steel hardware, which means that you’ll get a durable product that you can clean in a matter of seconds. It is a way better solution when it comes to durability and overall strength and quality for a good composting toilet list, especially when compared with other composting toilets on the market.

It contains full-sized ergonomic and elongated seat so that you can enjoy in additional comfort while seating. If you want to use it for camping purposes, you chose a right product. The great feature is that you will be able to install and disassemble it in a matter of minutes, one of the fastest easy solution for a good composting toilet.

It is completely environment-friendly so that everything will decompose in a matter of seconds. Using without too much hassle is simple. It can decompose 2-gallon storage of human waste without any additional problem.

You don’t need drainage system to make decomposition because the waste will be over in a matter of seconds. In overall, Nature Head composting toilet is a great solution that will give you peace of mind for both camping and RV purposes.

Amazing Features:

-Completely eco-friendly due to fast decomposition system that will allow you to use it with ease, one of the best composting toilets.

-It can easily decompose 2-gallon storage of human waste which is perfect for long routes.

-Stainless steel design will provide you added durability and possibility to clean it in a matter of seconds.

-Due to reverse fan action, you can rest assured, because everything will be odorless.

-It is simple to install, which is why it is the first choice among RV and camping enthusiasts.

PROS

  • Stainless steel for additional durability
  • Simple to clean
  • Completely odorless due to reverse fan action
  • Can withstand up to 2-gallon human waste
  • Simple to install and disassemble

CONS

  • Significant price tag
  • Short warranty deal

NATURE'S HEAD DRY COMPOSTING TOILET

Nature’s Head Dry Composting Toilet with Standard Crank Handle
  • Hand crank agitator in base for fast composting
  • User friendly
  • Easy installation
  • Features a molded design
  • Includes 5′ vent hose, bottle cap, 12v power plug

Last update on 2019-08-24

Finally, we’re here to present you a different brand than first two when it comes for a composting toilet solutionYes, we’re talking about Nature Head, which is one of the most popular manufacturers in the USA.

Their main idea is to create products that will provide you with a completely nature-friendly feature, which is much better than traditional toilets. It is important to mention that it comes directly from the USA, which is why most people tend to purchase it due to domestic reasons.

It features stainless steel hardware, which means that you’ll get a durable product that you can clean in a matter of seconds. It is a way better solution when it comes to durability and overall strength and quality for a good composting toilet list, especially when compared with other composting toilets on the market.

It contains full-sized ergonomic and elongated seat so that you can enjoy in additional comfort while seating. If you want to use it for camping purposes, you chose a right product. The great feature is that you will be able to install and disassemble it in a matter of minutes, one of the fastest easy solution for a good composting toilet.

It is completely environment-friendly so that everything will decompose in a matter of seconds. Using without too much hassle is simple. It can decompose 2-gallon storage of human waste without any additional problem.

You don’t need drainage system to make decomposition because the waste will be over in a matter of seconds. In overall, Nature Head composting toilet is a great solution that will give you peace of mind for both camping and RV purposes.

Amazing Features:

-Completely eco-friendly due to fast decomposition system that will allow you to use it with ease, one of the best composting toilets.

-It can easily decompose 2-gallon storage of human waste which is perfect for long routes.

-Stainless steel design will provide you added durability and possibility to clean it in a matter of seconds.

-Due to reverse fan action, you can rest assured, because everything will be odorless.

-It is simple to install, which is why it is the first choice among RV and camping enthusiasts.

PROS

  • Significant decomposition storage
  • Durable and compact
  • Perfect for outdoor and indoor use
  • Eco-friendly
  • Completely odorless

CONS

  • Expensive price tag
  • It can wear off after a while

What Is A Good Composting Toilet?

You don’t have to worry, because the entire process is quite straightforward and natural. You have probably used a garden composter, which works similarly to this particular toilet. You can think of them as modern and smart versions of those, but you don’t have to dig a hole or deal with pests and smells.

It doesn’t deposit waste by mixing liquids and solids through a sewer or into the hole, the idea of composting toilet is that it can break down human waste, separate liquids and evaporate it. It uses decomposition naturally to make it into nutrient-rich and usable waste.

The main problem with human waste is that 90% is liquid, which means that toilet will separate solids and liquids, and by doing it, will leave a less significant waste than before. On the other hand, water removal depends on the type of toilet you have.

Some of them feature the ability to separate solids from liquids, while others separate them in storage containers and use evaporation techniques for liquids. Finally, you can rest assured; because you will get solid waste that you can decompose it without compromising the environment.

Things to Consider When Buying a good composting toilet

Climate Consideration – When choosing ​a good composting toiletyou should have in mind that certain amount of heat happens during the composting process because microorganisms will generate energy while working.

If you live in cold area, then it can slow the growth of bacteria and the entire process. It is important that temperature is at least 55-degrees F so that composition can occur.

Zoning Requirements – Even though there are no rules and regulations that apply for composting toilets, you should consider and check building standard and code by your county, town or state. For example, you should find a toilet that features NSF certification, so that you can install it anywhere you, please.

Self-Contained or Centralized Compost Toilet Systems – This is the question because there are two types of compost toilet systems. Self-contained is functional and act as a toilet and composting chamber all at once. You can find both non-electric and electric versions. On the other hand, centralized compost toilet systems have separate storage somewhere on the property. It functions similar to traditional toilets, but waste goes to a composting container that will completely decompose it.

Why Should You Use a Good Composting Toilet?

  • Odorless – The first and main reason why people consider using the composting toilet is that they feature micro environment that will decompose waste without the smell and continuous process. Some of them feature airflow vents.
  • Perfect For Areas With Scarce Water – If you live in rural area where there are no conditions to make sewage system, then composting toilets are the best solution for you. Some areas have a deficit of water due to low rainfall, so you can reduce expenditure by finding an appropriate good composting toilet.
  • Environmental-Friendly – You can see in our composting toilet reviewsthat they are a great resource that will help our community by reducing waste. The main problem in most neighborhoods is the condensed waste that goes through sewage systems. However, this is a more affordable solution than installing a septic tank.

We have presented you thorough buying guide and reviews of the top composting toilet that you can find on the market. As you can see from everything that we’ve mentioned above the first and main reason why people choose, it is due to its convenience in decomposing human waste.

Apart from useful features that will give you peace of mind and less hassle, it is eco-friendly because waste is one of the reasons for environmental disasters. Therefore, use of composting toilets will help you protect the nature.

If you have anything to ask or to add for our composting toilets article, feel free to send us a message and we will answer you on short notice.

Frequently Asked Questions

Some states have codes regulating composting toilets, like Washington, and many states on the east coast. These codes typically require a NSF certified toilet, read more about rules for composting toilets here

Any type of toilet paper is acceptable to use for a good compost. Since paper products do not decompose as quickly as solid wastes, they will be visible long after the solid matter has broken down but they can be used nevertheless

We are raised with the idea that toilets and compost smell bad. However, due to constant negative pressure inside the unit, a good composting toilet never smells. Compost must be mismanaged significantly or venting installed incorrectly in order for it not to operate odor-free.

Besides the natural environmental friendly solution a composting toilet is a perfect and practical solution for any place where plumbing and electricity are inconvenient or absent.

Self-contained composting toilets are installed directly in the bathroom. They are available in both electric and non-electric versions. Electric units normally have more capacity than non-electric units because they have extra warmth and air movement to enhance bacterial activity.
The material should be left to compost in isolation, without potential contact from people, until it is fully composted and safe to handle. A composting toilet should not be too wet, sawdust soaks up urine, or urine is diverted away from the feces.
While the composting system will not suffer any damage due to freezing, the water valve on the Sealand low flush toilet will. If you are not keeping the bathroom heated throughout the winter, we suggest removing the water valve entirely.
It always depends on how many people use the toilet full-time, in average for two people it takes 3- 4 weeks for the compost bin to fill up.
You need to research your local building department. If there is no rule, you are free to install your composting toilet. In certain situations, especially with new home construction built under the building code, the building inspector may insist on an “approved” composting toilet system.
Yes is absolutely vital for the sawdust or it will stink. A general rule is to ensure the ratio of sawdust to human waste is 1:1.9

In existing homes, a composting toilet doesn’t typically break any laws (even when it’s not explicitly allowed) In the U.S. building codes typically require every legally habitable dwelling to have at least one flush toilet connected to an approved sewer or septic system.

A good commercial composting toilets cost from $1,000 to $8,000 depending on the complexity of the system. In comparison, traditional toilets range from $100 to $2000. You can read more about the top composting toilets here .

Neat urine, from most people, is relatively sterile. Internal composting toilets do not separate urine from the solids. Although some moisture is required in composting, sometimes there can more urine than is needed. Excess urine soaks through the compost pile resulting in a small amount of compost.