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The Best Composting Toilets for Smaller Living Spaces

three composting toilets on varying backgrounds
Separett/Nature’s Head/Nature’s Head

If you have an RV, a tiny home, or a boat, then a composting toilet is a convenient option for your lifestyle. Here are some composting toilets that are perfect for smaller living spaces.

A composting toilet separates liquids from solids and turns human waste into compost-like material. These toilets are essentially dry toilets because there is no plumbing or flushing involved, and this can come in handy for certain types of living situations. It’s environmentally friendly, it improves soil fertility in gardens, and they require little or no water. If you’re looking for a composting toilet, here are some we recommend.

Finding The Right Composting Toilet

Here are some things to consider:

  • Space: The most important factor to keep in mind is your available space. Determine how much space you have to work with before deciding on which composting toilet is best for you. If you’re working in particularly tight quarters, consider a compact model.
  • Family Size: If it’s just you or one other person, then you won’t need a big composting toilet. However, if you’re planning on using this toilet for the entire household, then look for larger models.

Best Overall: Separett Villa 9215 AC/DC

A compact white composting toilet
Separett

This model has features that make the price worthwhile, and for that reason, it’s our top choice when it comes to composting toilets. It is waterless and urine diverting. It operates on either AC (standard household or on-grid) or DC (from battery or solar) power. There’s also a single-speed fan, 10 compostable bags, and one waste container with a lid. If you’re looking for a dry toilet that has similar features to a standard toilet, then this Separett model should be high on your list.

Best Overall

Separett Villa 9215 AC/DC

This wall-mounted dry toilet does a great job separating urine and solid waste.

Best Bang for Your Buck: Nature’s Head Self-Contained Composting Toilet

A composting toilet with a spider handle on the side
Nature’s Head

This Nature’s Head model is another top-quality model and is extremely durable compared to most composting toilets. It was designed by sailors and is great for those living on boats as it can withstand harsh marine environments. It lessens odors as well. The low-volume air circulation fan built into the head provides the added benefit of recycling the air in your bathroom which helps to make your living environment smell better. It’s easy to install and the close-quarters spider handle design is another noteworthy feature.

Best Bang for Your Buck

Nature's Head Self-Contained Composting Toilet

This extremely durable composting toilet offers the best value for your money in terms of quality features.

Best Odorless: Sun-Mar Excel Self-Contained Composting Toilet

a large composting toilet with a stool
Sun-Mar

Sun-Mar offers the best odorless toilet. It evaporates liquid quickly and features a 2-inch vent in the back that runs out of the house, keeping your home clean and odorless. This dry toilet uses a completely water-free system, saving the planet while saving you money. It can be used for families of eight and is an ideal composting toilet for large families.

Best Odorless

Sun-Mar Excel Self-Contained Composting Toilet

This quality dry toilet uses no water and evaporates liquids quickly.

Best Compact Design: Sun-Mar Compact Self-Contained Composting Toilet

A composting toilet with a larger holding tank
Sun-Mar

Sun-Mar also provides the best compact design dry toilet for those looking for a space saver for their living arrangement. It’s available in two different colors and is easy to install anywhere without the need for any plumbing connections. Sun-Mar is also certified and listed by NSF international.

Best Compact Design

Sun-Mar Compact Self-Contained Composting Toilet

This composting toilet is super compact and designed for small spaces.

Also Consider: Nature’s Head Dry Composting Toilet

two views of a composting toilet
Nature’s Head

This dry toilet from Nature’s Head completes our list of top composting toilets. This model is easy to install, features a molded design, and includes a 5-foot vent hose, bottle cap, and a 12-volt power plug. The hand crank agitator in the base is perfect for fast composting, and there is little odor with this toilet. It’s also pretty compact, so it’s great whether you live in an RV, a tiny house, or a cabin.

Also Consider

Nature's Head Dry Composting Toilet

This user-friendly composting toilet is easy to set up and includes everything you need to install it securely.

Omid Khanzadeh Omid Khanzadeh
Omid is a freelance writer for LifeSavvy. He studied psychology and creative writing at Virginia Commonwealth University, and his work has been featured in publications such as Allied Forces Press and various STEM textbooks. He enjoys playing soccer and watching old kung-fu movies. Read Full Bio »

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