19 Best Composting Toilets For Tiny Houses (2022 Updated)

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Composting toilets are a type of toilet that uses no water for flushing. Instead, the waste is decomposed by microorganisms, resulting in a nutrient-rich compost that can be used as fertilizer. This type of toilet is ideal for tiny houses since it requires no water hookup, making it a more sustainable option.

19 Best Composting Toilets For Tiny Houses

1. Ogo Composting Toilet

Ogo Composting Toilet

  • Electric agitator with an easy to empty solids bin
  • Modern, sleek compact design with very small footprint
  • Urine level indicator light with urine separating trap door mechanism
  • 2.4 gallon urine bottle and 25-30 use solids bin

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eBay – boatandrvaccessories
Shop Tiny Houses
Toilet Oasis

Product Details

Specifications

Details
Item Dimensions LxWxH 15 x 16 x 18.38 inches
Installation Method Floor Mounted
Shape Rectangular
Seat Material Type Polypropylene
Product Dimensions 15 x 16 x 18.38 inches

Reviews From Real Customers

Jamie Grieser
Anne S.
Kelli S.

2. Separett Villa 9215 AC/DC

Separett Villa 9215 AC/DC

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eBay – discount-pro
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Nomadic Supply Company

Product Details

Specifications

Details
Dimensions 26.5′′ L / 18′′ W / 21.3′′ H /
Max Load 330 Lbs
Connection Battery Cable, 6.5 ft
Energy Consumption 0.06 kWh/ 24 hours

Reviews From Real Customers

Deborah M.
CottageOwner
selby frame

3. Nature’s Head Self Contained Composting Toilets

Nature's Head Self Contained Composting Toilets

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Product Details

Specifications

Details
Item Package Dimensions L x W x H 22 x 20.5 x 20 inches
Item Dimensions LxWxH 7.49 x 7.49 inches
Model Year 2020
Style Foot Spider

Reviews From Real Customers

cinditaylor
supplement_superstore
kvssieve3

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

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

  • Proudly made in the USA
  • All stainless hardware
  • Full size elongated seat for comfort
  • Disassembles in seconds for emptying
  • Vent hose and fan included

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Amazon.com – Seller
Lehman’s

Product Details

Specifications

Details
Product Dimensions ‎22 x 20.5 x 21.7 inches
Is Discontinued By Manufacturer ‎No
Shape ‎Rectangular
Voltage ‎12 Volts
Installation Method ‎Floor Mounted

Reviews From Real Customers

sweetstitchesbyc
ckel4434

5. Eco Safe Toilet System

Eco Safe Toilet System

  • Crush proof roto-molded polyethylene plastic tank.
  • Holds 5.5 gallons, good for approx. 50 uses and fits inside a 20mm “rocket” box.
  • Includes seat assembly with lid, wash-out hose adapter, 3″ clean-out hose with tank.
  • 11″ x 16.5″ x 7″ tank inner dimensions, 11.5 lbs.
  • The system meets all requirements of the BLM, NPS and USFS for a washable, reusable toilet. It empties easily at an RV dump or in a Scat Machine.

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NRS
CKS Online
Utah Whitewater Gear

Product Details

Specifications

Details
Tank Material Rotomolded polyethylene plastic
Tank Outer Dimensions 17″ x 7.5″ x 13.5″ tall
Tank Inner Dimensions 16.5″ x 7″ x 11″ tall
Volume/Capacity 5.5 gallons (approximately 50 uses)
Seat Dimensions 16″ front-to-back, 14″ w x 5.5″ tall

Reviews From Real Customers

Miah

6. Sun-Mar Compost Sure – Green

Sun-Mar Compost Sure - Green

  • hemp. Hemp will decompose where wood shavings and peat moss do not.
  • giving your compost a longer residency time! More importantly, it saves you the time of making your own mix.

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eBay
Walmart – Lehman Hardware and Appliances, Inc.

Product Details

Specifications

Details
Package Dimensions 20 x 12 x 8 inches
Country of Origin USA
Is Discontinued By Manufacturer No

Reviews From Real Customers

JessicaRider
lowes.ca
georgigirlgreen

7. Coleman Portable Flush Toilet (Large)

Coleman Portable Flush Toilet (Large)

  • Made of the highest quality materials
  • Camp hygiene
  • Another quality Coleman product

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eBay
Seller Bridge

Product Details

Specifications

Details
Item Dimensions LxWxH 19.9 x 18 x 16.3 inches
Shape Oblong
Item Package Dimensions L x W x H 20 x 18 x 16.5 inches
Suggested Users Unisex-adult
Sport Type Camping & Hiking

Reviews From Real Customers

Frogman60
fleetfarm.com
912valerie

8. Saniflo Round Two Piece Toilet 081_083_005 White

Saniflo Round Two Piece Toilet 081_083_005 White

  • “Contains 081 SANIACCESS 2 macerating pump
  • SANIFLO 083 round toilet bowl
  • and SANIFLO 005 toilet tank”
  • “Soft-close toilet seat included”
  • “Above the floor or behind the wall installation with SANIFLO extension pipe 030”

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Amazon.com – Seller
SanifloStore
QualityBath.com
Saniflo Depot | Upflush Toilets

Product Details

Specifications

Details
Portable No
Rubber Bumpers Included Yes
ADA Compliant Yes
Mounting Bolts Included Yes
Trapway Size 3-in

Reviews From Real Customers

M.M.
S.w.c.
F.

9. Sun-Mar Excel Ne Non-Electric Composting Toilet

Sun-Mar Excel Ne Non-Electric Composting Toilet

  • Available in your choice of colors
  • Connect 1-inch rear drain to an approved drain pit
  • Depth required to remove drawer: 46 inches
  • Vent outlet center distance from right side: 1125 inches
  • Requires drilling into your wall or ceiling for venting

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Walmart – UnbeatableSale
Home Depot
Cabela’s

Product Details

Specifications

Details
WaterSense Certified No

Reviews From Real Customers

Building my own p00per
Doyal

10. Nature’s Head Standard Crank Handle Composting Toilet

Nature's Head Standard Crank Handle Composting Toilet

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Amazon
Shop Tiny Houses

Product Details

Reviews From Real Customers

Taylor B.
Anthony W.
Dawn B.

11. Nature’s Head Composting Toilet with Spider Handle

Nature's Head Composting Toilet with Spider Handle

  • No one – and I mean no one
  • Easy to install by any reasonably handy person.
  • Huge Capacity. 2 people using full time will empty every 4-6 weeks. Easy empty in 5 minutes.
  • A vast improvement over older composting toilet designs. This one works!

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Amazon
eBay – boatandrvaccessories
Marine Sanitation & Supply
Boat and RV Accessories

Product Details

Specifications

Details
Is Discontinued By Manufacturer No
Shape Rectangular
Voltage 12 Volts
Installation Method Wall
Item Package Quantity 1

12. Laveo by Dry Flush Portable Waterless Toilet

Laveo by Dry Flush Portable Waterless Toilet

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Amazon
Shop Tiny Houses
Camping World
OffTheGridWorld

Product Details

Specifications

Details
Bowl Height Standard
Bowl/Seat Shape Round
Handle Location Right
Mount Location Floor Mount
Seat Front Type Closed
Style Modern
Use Capacity Full-Time
Weight Capacity (lb.) 500
Certifications and Listings No Certifications or Listings
Bowl Height without Seat (in.) 16
Product Width (in.) 16
Total depth for installation (in.) 20

Reviews From Real Customers

Jamie H.
Renda D.

13. GTS Eco-Safe Portable Geo Camp Toilet System, Groover

GTS Eco-Safe Portable Geo Camp Toilet System, Groover

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Amazon
4Corners Riversports

Product Details

Reviews From Real Customers

Padeen
Feelin Groovy
Standup Rafter

14. Serenelife Portable Potty Seat Toilet Cover and 5.3 Gallons of Water Piston with Pump Flush Tank Capacity

Serenelife Portable Potty Seat Toilet Cover and 5.3 Gallons of Water Piston with Pump Flush Tank Capacity

  • Easy Clean 3-way Flush Nozzle Design
  • Flushes And Rinses Bowl With Fresh Water Reservewaste Water Tank Level Indication & Vent
  • No External Water Or Power Connections Required
  • Rugged & Durable Constructionwater Tank Capacity For Up To 50+ Flushes
  • Easy Access Waste Tank For Quick Disposal

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Walmart – Price Beat!

Product Details

Specifications

Details
Product Dimensions 16.34 x 14.38 x 16.54 inches

Reviews From Real Customers

Cheryl Dalton
Carlos
Penny

15. Dry Flush Laveo Toilet Refill Cartridges (3 Pack)

Dry Flush Laveo Toilet Refill Cartridges (3 Pack)

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Amazon
Shop Tiny Houses

Product Details

Specifications

Details
Plumbing Part Type Toilet Kit
Product Width (in.) 16 in

Reviews From Real Customers

Karen J.
Samuel H.
Alice P.

16. Cleanwaste Portable Toilet w/ 1 Waste Kit (D119PET)

Cleanwaste Portable Toilet w/ 1 Waste Kit (D119PET)

  • Each Includes One portable toilet, 1 GO anywhere toilet kit, Instruction sheet.
  • Built-in carry handle.
  • Supports up to 500 Lbs.
  • Uses GO anywhere toilet kits.

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Amazon
Sears – FastMedia

Product Details

Reviews From Real Customers

aarmstrong0002
Hopefully Devoted
Mick

17. Dock Edge Visa Marine Toilet, 8 Litre, MSD, Grey – DEF308

Dock Edge Visa Marine Toilet, 8 Litre, MSD, Grey - DEF308

  • 2-Section Portable Flush Toilet
  • Bi-directional Piston Pump Rinse
  • Leak and Odor Proof Seal
  • Fresh Water and Waste Level Indicator
  • Large Fresh Water Capacity

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eBay
Global Industrial

Product Details

Specifications

Details
Item Package Dimensions L x W x H 14.96 x 13.7 x 12.68 inches
Item Dimensions LxWxH 14.5 x 12.99 x 12.2 inches
Country of Origin China
Suggested Users Unisex-adult
Style 8 Litre

Reviews From Real Customers

B.
ulp8
Poopin and campin

18. Separett Rescue Camping 25 Portable Urine Separating Toilet

Separett Rescue Camping 25 Portable Urine Separating Toilet

  • Easy installation
  • Convenient for outdoor activities
  • Portable and storage in bag
  • Bag included

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Nomadic Supply Company
Shop Tiny Houses

Product Details

Reviews From Real Customers

maison-ecolo.com
Bruno
marc

19. Renovators Supply Cherry High Tank Z-Pipe Toilet Round White Bowl

Renovators Supply Cherry High Tank Z-Pipe Toilet Round White Bowl

  • Elongated

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Renovator’s Supply Manufacturing
Overstock.com
Sears
Wayfair

Product Details

Specifications

Details
Category Toilets
RedDesign Smooth

Reviews From Real Customers

webuser_664327933
Scott G.
Herry S.

Conclusion

There are a few key points to consider when thinking about using a composting toilet in a tiny house. First, it is important to make sure that the toilet is properly ventilated. This can be done by ensuring that there is a ventilation fan in the bathroom, or by opening a window when using the toilet.

Second, it is important to ensure that the composting toilet is properly maintained. This means regularly adding new compostable material to the toilet, and ensuring that the toilet is not allowed to become too wet or dry.

Finally, it is important to remember that composting toilets require a bit more maintenance than traditional toilets, but they are a great option for those who want to reduce their environmental impact.

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