The 509 Optimum Energy Log Stove is one of the most fuel efficient stoves in the world. It was designed to cleanly and efficiently burn manufactured densified biofuel logs, a carbon neutral fuel option. Some examples of these logs are Pres-To-Logs, North Idaho Energy Logs, Home Fire Prest Logs, and Tok Wood Fuel Logs.

The Stove was designed and is manufactured locally in the Inland Northwest. It is available Factory Direct in Post Falls, Idaho, and is sold at various dealers through out Idaho, Oregon, Montana, and Washington.


The 509 Optimum Stove has received several awards for innovative design, unique niche, and most marketable product. The Stove is rated as the #1 fuel efficient non-catalytic stove built. For more info, read the full EPA report on this innovative and clean burning product.