Excel NE
This self-contained non-electric unit uses an insulated bio-drum to maintain warmth of the compost. If the Excel NE is used residentially or heavily, or is in a place which is subject to downdraft, an optional 12-volt fan may be installed in the vent stack. This fan draws 1.4-W
and can be powered by a solar panel and/or 12V battery.  shipping information
Capacity: 5-7 people weekend/vacation use, 2-3 people residential/continuous use
Width with handle: 26"
Length with footrest: 42"
Height footrest to seat: 17"
Required length to pull out drawer: 51"
Product weight: 50 lbs.
Shipping weight: 100 lbs., carton: 35"H, 27"W, 35"D
Sun-Mar Excel NE Non-electric unit
31.5"H, 22.5"W, 33"D
$ 1249
Sun-Mar Vent Fan 12 VDC vent fan & solar panel 
For increased air flow.
$ 159