The success of the Excel design meant that a three chamber unit could be specifically designed for those with NO continuous 110 volt 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 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.

Composting Capacity
2-3 Residential
5-7 Weekend and Vacation Use

*No water or sewer connections required

*No Pollution

*No Odor

*Certified & Listed by NSF

*5 years on the fiberglass tank and 3 years parts replacement on all other parts

The Excel is the best-selling unit in North America and for good reason. 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 ever self-contained composting toilet to be certified by the National Sanitation Foundation (NSF). So, when you purchase an Excel, you are literally purchasing a composting toilet that sets the standard.

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 odour and produced a clean, safe compost. Only Sun-Mar self-contained units are listed for residential and cottage use by NSF, whose Standard #41 is the toughest composting performance standard in the world.

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 ½'' 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.

Capacity
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) 2 adults or families of 3
Seasonal/Vacation (Adults/Families) 5 adults or families of 7

Electricals
Electricals must be connected while the unit is in AC use for proper operation
Maximum Amps (With Heater On) N/A
Fan Watts (Required or Optional Hookup) 1.4 (12V) Optional
Heater Watts (When Thermostat switches it on) N/A
Average Power Use in Watts (Heater on 1/2 time) N/A

Vent & Drains
Vent Pipe 4'' PVC Thinwall
Drains (Required or Optional Hookup) 1'' Required

Weights (Lbs.) & Dimensions
Product Weight/Shipping Weight 50/95
Shipping Carton Dimensions (W by L by H) 28'' by 35 1/2'' by 36''
Depth Required to Remove Drawer 46''
Vent outlet center distance from left side 11 1/4''
Height to center of vent N/A
Unit Height/Width/Depth 31 1/2'' by 22 1/2'' by 32 1/2''

Manufacturer's Warranty: 5 years on the fiberglass tank and 3 years parts replacement on all other parts