5 Best Composting Toilet for Tiny House in 2022 [Buying Guides]

best composting toilet for tiny houseThe best composting toilet for a small house is now most popular because of its quality and excellent performance. If your house is small and comes with water issues, surely a composting toilet is the best choice for you.

It is tricky to install a toilet when you have very little space in your bathroom and also suffering from water. Here, I collect 5 top-rated toilet (commode) which has a compact shape, hassle-free installation, waterless and water-saving flush and lots.

5 Best Composting Toilet for Tiny House


Nature’s Head Best Toilet for Tiny House

Nature’s Head
  • A huge capacity for 2 people
  • No odor
  • 5-years  warranty
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Nature’s Head Dry Composting Toilet for Tiny House

Nature’s Head Dry
  • 12 V power plug
  • Easy installation
  • Molded design
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Villa 9215 Best Small Toilets

Villa 9215
  • Long-time supported
  • Oblong shape
  • Wall-mounted installation
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Sun-Mar Excel Non-Electric Composting Toilet

Sun-Mar Excel
  • 100% non-polluting
  • Non-electric
  • Off-grid
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Sun-Mar Compact Self-Contained Composting Toilet

  • Compact
  • Very expensive
  • Provides maximum comfort
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1. Nature’s Head Best Toilet for Tiny House

Nature's Head Best Toilet for Tiny House

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Are you looking for a composting toilet for your tiny house or apartment? Surely this nature’s Head is one of the best selections for you. Why is this commode best for your tiny bathroom? Well, let me explain deeply.

This toilet comes with several quality features that give excellent service with durabilities, such as its materials and other things. On the other hand, it comes with huge waste capacity, and 2-people easily use it for 4 to 6 weeks without any issue.

Don’t worry; the flush system of this unit is easier. You just need 5-minutes to empty this commode. Even you can use this commode full time, and you need not clean for a week.

Furthermore, the toilet (commode) prevents odors, mildew, particles, bacteria, and other harmful elements, which is truly worst enough for your health. So, the toilet has also used all ages of people, especially your kids.

Let’s talk about this toilet installation method. For a hassle-free installation, you can discover all of the accessories with this unit. You don’t need any maintenance costs. If you are a new person, you just need 30-minutes or less to install this component.

Finally, you will get a 5-year limited warranty and technical support. For your kind information, the customer service is fantastic, fast, and effective.

  • Prevent harmful element from the toilet

  • Easy to empty within 5-minutes

  • Long-time usable without empty the unit

  • Comes with hassle-free installation

  • Included 5-years warranty and technical support

  • The gallon is not clear

Nature's Head Self Contained Composting Toilet with Close Quarters Spider Handle Design
  • No one - and I mean no one - will beat my customer service and individual support
  • Easy to install by any reasonably handy person.

2. Nature’s Head Dry Composting Toilet for Tiny House

Nature's Head Dry Composting Toilet for Tiny House 

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This is my second and top-rated Nature’s Head dry composting toilet (commode), which mainly designs for tiny houses. This toilet designs for personal use. It is also suitable for boats, portable areas, RV, and also useable for your small composting toilet for van.

The toilet comes with self-contained, urine-diverting, and waterless operation, which allows you to use it without water. This nature head comes with a lightweight and portable option that allows you to use it outside of the home.

The toilet is durable because each of the functions of this unit is made with quality materials such as stainless steel hardware, which is well enough and long-time support. On the other hand, it used robust and solid construction for its durability.

You can use this unit for a single person but also try for kids without any issue. I used this unit for my RV, and I don’t find any issue still 3-years of use. So, I think it is not complicated for you to use it for a long-time.

This commode does not take much time to install. The user manual is crystal and clear, so you can hassle-free install it. The toilet also has a tool-free installation process that means you don’t need to use any extra tools to install it.

Note, the warranty and technical support are not clear, so you need to contact them for the warranty and support.

  • Comes with a waterless operation system

  • Lightweight and portable design

  • Used stainless steel and robust construction

  • The user  manual is crystal and clear

  • It  is a personal toilet

  • It is not recommended for more  than 1 -person

Nature's Head Dry Composting Toilet with Standard Crank Handle
  • Hand crank agitator in base for fast composting
  • User friendly

3. Villa 9215 Best Small Toilets

Villa 9215 Best Small Toilets 

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Villa 9215 is a new brand commode that releases 2018 and still popular in the USA people. It is one of the most trouble-free portable composting toilet (commode) available for on-grid or off-grid living. It also comes with waterless and urine-diverting.

You can use this unit both AC (Standard on-grid mode) and DC (battery or solar system) for maximum comfort and flexibility. It is also featured with a single-speed fan with adaptors for both AC and DC support and provides low-energy-consumption facilities.

This best composting toilet for off-grid is included all of the parts which you required to use this unit perfectly. Like the upper one, you can install this commode without using any extra tools that mean it is a tool-free installation commode.

When 2-3 people continuously use the toilet, it may support 3-5 days without draining issues. But after that, you need to empty the toilet.

There are lots of advantages you will get from this component. Overall, it comes with ETL certification and other  USA certified section for strong health safety. I hope that it is an excellent choice for you to use your family.

Whatever the toilet seat shape is strong enough and provides strong and soft support. If you are a weighty or tall person, this unit will provide you maximum comfort. But it can not take much weight, and the weight capacity is 250-pounds (estimate 200-pounds).

Note, for knowing the product warranty; you need to contact the manufacturer.

  • Comes with both AC and DC mode

  • Adapter support both AC and DC  power

  • You can also use solar and battery power

  • Waterless and urine facility

  • ETL certification

  • The warranty is not clear enough

Separett Villa 9215 AC/DC
  • Composting,Waterless,Urine diverting, off-grid, toilet

4. Sun-Mar Excel Non-Electric Composting Toilet

Sun-Mar Excel Non-Electric Composting Toilet 

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Let’s welcome another best quality composting toilet, which comes with several high-quality features. It is a vision-electric and self-contain composting toilet that is odorless converts human waste into self-fertilizing soil. You can say it is a diy composting toilet

The toilet is designed for medium to high-capacity use, which means it is suitable for weighty and normal people. So, if your family has any member who has weight issues, surely this component is a great asset for him/her.

It is ideal for 2 or 3  people and a residential setting or 5  to 7 people for cabin use in a week. You can empty the toilet in a week when it is used 5 to 7 people. On the other hand, you need to empty it after 4 to 7 weeks when this unit is used for 2  or 3 people.

The toilet came with heath condition and passed many tests such as NSF or ANSI and CSA. So, it would help if you did not worry about its health condition. I hope that you can understand whatever I say to you about this section.

When I talk about comfort, I think this unit is average to provide comfort. However, it is truly well enough for comfort because the shape of this unit is fitted with the maximum ages of people even 60-years older of people.

What next, you will get all of the accessories and hose for installing this unit. But it only comes with AC mode, which means you can not use any solar or battery power of this unit. Despite this issue, I think it is one of the best products for you.

  • Suitable  for an average size family

  • NSF or ANSI and CSA certified

  • Comfortable shape

  • Provides long-time service

  • Hassle-free to operate

  • It  does not come with DC mode

Sun-Mar Excel Non-Electric Self-Contained Composting Toilet, Model# Excel-NE
  • Non-electric model; ideal for applications off the grid
  • Low profile unit complements any bathroom

5. Sun-Mar Compact Self-Contained Composting Toilet

Sun-Mar Compact Self-Contained Composting Toilet 

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This is my final selection for you. The sun-Mar compact composting toilet comes with the ultimate waste treatment solution, which is quickly installed anywhere without the need for a plumber or any extra tools.

It is a traditional toilet that protects public health and the environment. This unit is able to prevent bacteria, mildew, particles, and another harmful element. So, you and your family member become safe with this component.

Whatever it is, a toilet that comes with a waterless and urine facility. So, you can easily use this unit for camping, adventure, thinking, or small tiny house without any issue.

The device comes with some USA lab-certified such as NSF international CSA  and some others. I recommend this unit for strong safety and comfort.

Overall, the empty you need this unit after 4 to 7 weeks. But when the device is used by up to 4 people, you need to empty it every week. I hope that you can understand whatever I say to you about this unit.

  • Made  with high-quality materials

  • Certified with NSF and CSA

  • Hassle-free to the installation method

  • Comes with the ultimate waste treatment solution

  • Long-time supported

  • The user manual is not much clear

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Buying Guide: Before You Consider

People always asked me which composting toilet is best for them. It is tricky to answer in one word. So, to choose the best commode for your small bathroom, you can check the below-buying guide that helps you to collect the right one.

Cover  material

The best cover materials can use raw sawdust straight from a sawmill. The material has an excellent odor and quickly breaks down, which helps the composting system without any issue. If you have not, besides any mill, you can order it from any online shop.

Waterless composting system

You may already know that the composting toilet offers a waterless facility that means you never need to use any water to flush the unit. It is an excellent option and provides lots of facilities. So, it would help if you chose a waterless composting toilet.

Members of use

It is a very eventful fact to choose the perfect member composting toilet—most of the bathroom support 2 to 7 persons. When using the more people in the bathroom, you may need to empty them every week. So, before you purchase a composting toilet, you need to focus on it.


Compositing toilets always come with a hassle-free installation process. They included all of the accessories so that you need not buy any others. When you read the product description, you need to check out this section.

FAQs (Frequently Ask and Questions)

Q: What is the best composting toilet on the market?

A: When the composting toilet uses strong materials, advanced technology, and a hassle-free installation process, I think the toilet is the best on the market.

Q: Does the toilet smell bad?

A: Yes, a composting toilet produces a bad smell when you don’t clean it regularly. To avoid bad smells, you can clean the toilet regularly at least weekly once time.


After analyzing this composting toilet product list, I think you can choose the best one. But if you are still unhappy and confused about choosing the best one, surely I will win you a toilet. You can check out Nature’s Head Best Toilet for Tiny House. This unit is used for very high-quality features. So, without delay, purchase your best one.

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