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Earth Commercial Wood-Burning Furnaces - General Information

  • Earth offers 6 models, 2 styles:
    1. Ash-Drop - 2 Door, Commercial Wood-Burning models 400, 500
    2. Open System - 1 Door, Commercial Wood-Burning models 305, 365, 405, 505
  • Earth also manufactures a forced-air furnace, the Bear Cub 305 FA.
  • The water tank is 10 gauge (1/8" thick.) Nothing is made light or cheap in an Earth Furnace.
  • The Earth Cylinder Firebox is 1/2" Thick (not "almost" as some advertise). Most other companies use 1/4" thick. Earth is twice as thick!
  • The Earth Furnace has a Heavy Duty door hinge to prevent warping.
  • The weight of a furnace is the #1 issue you should compare. What do comparable BTU's weigh?