Airhead Composting Toilet



The “Air Head” Composting Toilet works simply. By separating liquids from solids, the volume of solid human matter is significantly reduced. Air Head’s approximate five-gallon capacity means that up to a season’s worth of weekend use may be held. (Based on solid matter volume for two persons’ use twice every weekend for five months: 80 uses). A liveaboard couple can expect 60 uses (one month) before they’ll have to empty the solids tank.

Much like a household toilet the “Air Head” Composting Toilet has a bowl and an actuator which provides a “flush.” The main difference is the “Air Head” Holding Toilet’s waterless operation. A paper bowl liner acts as a carrier for solid matter on its way to the solids tank.

The solid matter is separated and agitated, thereby decomposing it into a non-offensive state inside the large tank. Additionally, the unit has an integral 12-volt fan that provides a constant negative pressure to pull moisture out of the living space. Even after long lay-ups, there is no “holding tank” smell when you come aboard.

Liquids are collected in the smaller forward tank. Its wide-mouthed aperture will keep the contents emptying smoothly into any standard commode. The liquid tank will hold approximately four days use per person if used exclusively. A low-profile bottle is also available that holds about half the volume of the standard bottle.

Whats Included:

  • Toilet Bowl
  • Solid tank with agitator
  • Solids Tank Lid
  • Liquid bottle
  • Liquid Bottle Cap
  • Crank handle
  • Composite wood seat
  • Hold down brackets
  • Mounting hardware
  • 5′ length of hose
  • Hose connectors
  • Fan and fan housing
  • Paper bowl liners (50)

When ordering please specify:

  1. Seat size, (household or marine)
  2. Crank handle side (A or B).  A side is on the left when facing the toilet
  3. Right angle or straight fan housing
  4. Flat Back (standard) or Hull Shape Solids Tank
  5. Bottle size (compact 1-gallon or 2-gallon (standard))

Additional information

Choose seat type

household, marine

Choose tank type

flat back, hull shape

Choose right or left side crank

right, left

Choose fan housing option

straight, right angled

Choose Liquid bottle size

2 gallon (standard), 1 gallon