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Sun Mar Excel Composting Toilets
Sun-Mar Excel The Excel is the best-selling unit in North America. It is a high capacity Bio-Drum toilet that is very simple to operate, features well proven technology and is extremely reliable. The Excel was the first self-contained composting toilet to be certified by the National Sanitation Foundation (NSF).

EXCEL MODELS:
EXCEL NE (NON-ELECTRIC): Capacity: 2-3 residential, 5-7 weekend & vacation.
The success of the Excel design meant that a three chamber unit could be specifically designed for those with NO continuous 110 volt supply. 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 acts like a chimney on a wood stove. For good air movement the vent should be installed vertically and to 2-3 feet above the peak of the roof.

The optional 12 Volt Fan should be installed if you need to install the toilet with any bends in the vent. No more than 2 45° bends are encouraged, even with the fan. If the Excel NE is used residentially or heavily, or is in a place which is subject to downdraft, the optional 12 volt fan should be installed in the vent stack. This fan draws 1.4 watts and can be powered by a solar panel and 12 volt marine battery.

Evaporating capacity on the Excel NE is variable, so the 1" drain at the rear should be connected to an approved drain pit, container, or other facility.

EXCEL: Capacity: 3-4 Residential, 6-8 Weekend and Vacation. The Excel has enough capacity that it can be used just about anywhere; in residences, cottages and even in light commercial applications. To simulate residential use the Excel was tested by the National Sanitation Foundation (NSF) at maximum capacity for 6 continuous months, during which the Excel produced no odor and produced a clean, safe compost.

The 2" vent is attached at the top back of the Excel and can be installed invisibly by running it through the wall and up the outside wall. For comfort the Excel has a sturdy detachable footrest which can be removed to pull out the finishing drawer. In normal use the Excel can normally evaporate all liquids, however a 1?2" emergency drain is fitted at the rear and this should be connected if the unit is to be used residentially or heavily, or if prolonged power outages are expected.

EXCEL AC/DC:
Composting Capacity In Residential: AC Mode:3-4, 6-8 Weekend Use
Composting Capacity In DC Mode: 2-3 Residential, 5-7 Weekend Use

The Excel AC/DC is a standard 115 volt Excel unit, but with 1" safety drains at the rear and dual (2" and 4") vent stacks. The unit uses the regular 2" vent when 115 Volt power is available and defaults to the 4" NE vent when it is not. A 12 volt 1.4 watt fan is included for use in the 4" vent stack. The Excel AC/DC is for those with generators operating over 12 hours per day, or for people that expect to have continuous 110 volt power available in the future.

The 1" overflow drain on the Excel AC/DC should be connected if the unit is being used heavily in AC mode, and if it is being used in DC or non-electric mode. It will only evaporate all liquids while working in the AC mode continuously.

NSF Certified. When ordering, please specify White or Bone.
Item # Description Price  
AP101 Sun-Mar Excel $1,395.00 Add to Cart
AP11732 Sun-Mar Excel AC/DC Composting Toilet System $1,565.00 Add to Cart
AP100 Sun-Mar Excel NE $1,295.00 Add to Cart
Sun-Mar Excel AC/DC Composting Toilet System Sun-Mar Excel AC/DC Composting Toilet System
Sun-Mar Excel NE Sun-Mar Excel NE