Description

Sun-Mar SpaceSaver Self-Contained Composting Toilet — Three-Chamber Design for Extremely Tight Spaces

Product Description

When space is the deciding factor, the Sun-Mar SpaceSaver delivers. Designed specifically for situations where space is extremely limited, the SpaceSaver is Sun-Mar's smallest electric self-contained composting toilet — second only to the non-electric GTG in overall footprint. At just 19½" wide and 23" deep, it can turn a closet or small corner into a fully functional bathroom without a sewer connection, running water, or septic system. It operates exclusively on 110V power and features both a built-in heating element and a fan to manage liquid evaporation and maintain odorless operation. Three-chamber Bio-drum composting technology, a Sun-Mar signature, handles the rest.

• Smallest Electric Self-Contained Model — With a width of just 19½" and a depth of 23", the SpaceSaver fits in spaces no other Sun-Mar electric toilet can. Even a closet or tight corner becomes a viable bathroom location.
• Three-Chamber Bio-Drum Design — Sun-Mar's proven three-chamber system separates composting stages for efficient, reliable breakdown without manual intervention beyond routine drum rotation.
• Built-In Heating Element — A thermostat-controlled 160W heater assists with liquid evaporation, keeping the composting chamber at optimal moisture levels.
• Fan-Assisted Odorless Operation — A 35W fan creates continuous negative airflow through the composting chamber and out the vent pipe, preventing odors from entering the bathroom during use.
• 110V Operation — Runs exclusively on standard 110V power. Electricity must be connected while the unit is in use.
• Residential and Seasonal Capacity — Accommodates 1 adult for continuous residential use, or up to 3 adults or families of 4 for seasonal and vacation use.
• Versatile Installation — Suitable for cabins, cottages, homes, yurts, pool houses, cabanas, bunkies, camps, treehouses, and workshops.
• 3-Year Parts Warranty — All Sun-Mar composting toilets are backed by a 3-year warranty on parts.

Specifications

FAQs

Q: How does the SpaceSaver compare to the Compact in terms of size? A: The SpaceSaver is smaller. At 19½" wide and 23" deep, it is Sun-Mar's most compact electric model and is specifically designed for situations where space is extremely limited — including closets and small corners. The Compact measures 21½" wide and 33" deep.

Q: Does the SpaceSaver require electricity? A: Yes. The SpaceSaver runs exclusively on 110V power, which must be connected while the unit is in use. It is not available in a non-electric version.

Q: How does the SpaceSaver control odors? A: The built-in 35W fan creates continuous negative airflow through the composting chamber and exhausts it through the 2" vent pipe. When properly installed per the owner's manual, the unit operates completely odor-free.

Q: What is the capacity of the SpaceSaver? A: For continuous residential use, the SpaceSaver is rated for 1 adult per day. For seasonal or vacation use, it accommodates up to 3 adults or a family of 4.

Q: Does the SpaceSaver need a drain connection? A: The safety drain (1" OD) is recommended for residential applications. All venting must be done per the guidelines in the owner's manual.

Q: What is the warranty on the SpaceSaver? A: All Sun-Mar composting toilets carry a 3-year warranty on parts.