Space Saver

Sun-Mar Toilet Space Saver

The SPACESAVER is a standard three chamber unit designed specifically for situations where space is extremely limited. With a width of only 19" and depth of 22", even a closet or small corner can now be turned into a bathroom! The SPACESAVER is fitted with the same kind of high quality turbo-fan as other electric units have. The SPACESAVER has almost the same size Bio-drum as the COMPACT, so composting capacity is similar to that of the Compact. On the other hand, evaporation is limited by the smaller heater and evaporating surface, so the safety drains should be connected. Click here for more information on handling excess liquid.
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The Sun-Mar Spacesaver is specifically designed for places where space is extremely limited. With a width of only 19-1/2 in. and depth of 23 in. this medium capacity electric composting toilet occupies only slightly more floor space than a toilet seat. All Sun-Mar composting toilets incorporate a patented Bio-drum which ensures fast and odorless decomposition. Saves thousands of gallons of water, while recycling waste into soil. The unit is shipped fully assembled. To install, simply plug into a regular 110-Volt outlet and connect the supplied 2 in. vent stack. Seasonal capacity: 3 adults or families of 4. Residential use: 1 adult.

  • No water or sewer connections required
  • No pollution
  • No odor
  • Certified and listed by ANSI/NSF



Listed capacities refer to the amount of people, on average, using the unit per day. Do not pick a unit that is below your capacity. Residential/Continuous (Adults/Families)1 adults or families of 2Seasonal/Vacation (Adults/Families)

3 adults or families of 4


Electrical must be connected while the unit is in AC use for proper operation

Maximum Amps (With Heater On)

1.2Fan Watts (Required or Optional Hookup)

35 RequiredHeater Watts (When Thermostat switches it on)

160Average Power Use in Watts (Heater on 1/2 time)110

Vent & Drains

Vent Pipe2" PVC Thinwall

Drains (Required or Optional Hookup)1" Drain, Required Use

Weights (Lbs.) & Dimensions

Product Weight/Shipping Weight


Shipping Carton Dimensions

(W by L by H)22" by 29" by 37"

Depth Required to Remove Drawer


Vent outlet center distance from right side


Height to center of vent

27 3/4"

Unit Height/Width/Depth

30" by 19 1/2" by 23"

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