(207) 442-7938   873 U.S. Route One, Woolwich, ME 04579   M-F 9am-4:30pm SA 9am-3pm

Sunmar Excel Composting Toilet

  • Sale
  • Regular price $1,930.00
Shipping calculated at checkout.


One of our best-selling units, this toilet is rated for use by six adults (or a family of up to eight -including adults and small children). Classified as the "high capacity electric unit", this Excel makes use of electricity in two ways to facilitate the composting process. A 110V fan moves air through the unit while a 110V heating element kicks in when the temperature falls below optimal levels.

Long considered the standard in composting toilet performance, the Excel is the preferred self-contained electric model for heavy or residential use. Composting speed and capacity on this model is outstanding! The large Bio-Drum designed into the Excel gives it twice the capacity of the Compact.

The Excel family was re-engineered in 1998 to provide it with a smooth round contemporary look. At the same time the drum handle has been recessed, a new removable evaporating tray fits below the screen, and all electrical components have been repeatedly upgraded to ensure a longer service life.

Our Promise To You.

If it is for sale in our store -- it is because we use it and love it!

We are happy to share our experiences with these tools which may enhance your own. Given care, maintenance, and love, each of these fine tools is capable of lasting a lifetime. We do limit warranties to those offered by our supplying manufacturers. If ever you have a question or concern regarding any of the tools we sell, please let us know.

Online. On Campus. On The Job Site.

These tools, toys and supplies are in constant use by our students, timber framing crews, and family. At Shelter Tools, we have a working knowledge of every product we sell. Graduates will find particular items recommended in class and on site.


If you don't see the tools or items you need, we can find it for you. Write us or call us anytime.