Model 3000 - Outdoor Wood Boiler

                            Starting At $4750

Standard Model Heats 0 - 3,000 Square Feet

Elite Series Model Heats 0 - 3,500Square Feet

Elite High Flow Heats 0 - 4,000 Square Feet

Utilizing a new, patent pending hydronic outdoor wood boiler, the Model 3000 Heiss Heater is made from a revolutionary masonry material and is unaffected by extreme temperatures or corrosion.

Our heaters burn cleaner and hotter as a result of their “ceramic effect”, resulting in a more efficient burn with less smoke and only minimal creosote.

Heiss Heaters are built to last and provide, clean, green heat. Easy to install, more efficient heating, Less cleaning, no
potential welds that may break, it’s apparent, Heiss Means Hot!


  • Rated Output:
  • Up to 150,000 BTU's
  • Heating Capacity:
  •  1,000-4,000 Sq. Feet
  • Approximate Weight:
  • 4,000 lbs.
  • Unit Fittings:
  • 1” Copper Male Ends
  • Boiler Dimensions:
  • 32"W x 56"L x 48"H
  • Firebox Dimensions:
  • 24"W x 48"L X 36"H
    24.0 Cubic Feet