Sun-Mar Excel NE Composting Toilet
The Excel NE (non-electric) from Sun-Mar features a 3-chamber unit specifically designed for areas without a continuous power supply. First launched in 1981, the Excel NE has long been the standard toilet for those living off the grid. A 1998 redesign gave the unit a rounded look and recessed the drum handle.
The Excel NE has no fan or heater. Odorless operation is achieved by a 4" vent mounted at the top rear of the unit which functions the same way as a chimney on a wood stove. For good air movement, the vent should be installed vertically with 2-3 feet clearance above the peak of the roof.
Use the optional 12 Volt Fan if you need to install the toilet with any bends in the vent. No more than two 45 bends are recommended, even if using the fan. If the Excel NE will be used heavily or will be located in a place subject to downdrafts, the optional 12 volt fan should be installed in the vent stack. The fan draws 1.4 watts and can be powered by a solar panel or a 12 volt marine battery.
SHIPPING NOTE: Please note we estimate $250 shipping cost, but will quote you the official cost once your order comes in. This product is currently backordered 5 to 6 weeks.
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See the Rough-In diagram for more detail on dimensions.
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