Submitted by Jeff Davis on
Mr Switchgrass is an inverted downdraft gasifier design that burns/gasifiers chopped switchgrass or weeds with little to no smoke problems. A rule of thumb is that each section will burn for a solid ten minutes at full flame. I measured 66 lbs for one load and it ran for about 40 to 50 minutes.
Burner Flame
Burn Flame 2: Started with paper or house trash.
Burn Flame 3: Smoke free flame.
Burn Flame 4
Burn Flame 5: Very clean burn.
Bale Storage: This is how I stored the bales of switchgrass.
Flue: No smoke from the stack.
Transformation Tower: More proof of the clean burn.
Air tube and grate: Grate and air tube.
Loaded: Here you can see a new load of switchgrass, air tube and air holes.3