Free Heat Machine | Outdoor Wood Burning Furnaces Boilers Heating Water Radiant Heat

1. Heavy Gauge metal roof

2. Control Box - Contains the automatic controls for furnace operation including: aquastat, temperature gauge, liquid level indicator and high temperature limit switch.

• "Simple-Is-Better" design with no electronic components to break.
• UL / ULC Testing Label

3. Bright light for night loading.

4. Smoke Bypass Damper

5. Extra large, waist high loading door

• Advanced Air-Cooled / Combustion-Air-Pre-Heating Door Design
• Non-stick air tight door gasket
• Anti-Blowback Door Closure Device
• Easily adjustable door hinges. Some competitors require a sledge hammer to adjust - we need an adjustable wrench.
• Easy and infrequent ash removal (Up to 5 Months on Model 250)

6. Forced Draft Combustion Blower. In a perfect world where you have perfectly dry, seasoned and split hardwood you might not need forced draft. In the real world, however our forced draft combustion blower gets you more heat, a faster recovery time and much less smoke than natural draft units.

Thermostatically controlled automatic draft damper. This provides a positive shutoff to the combustion air going to the fire. Without this the blower would build creosote and will cause the furnace to burn too much wood.

7. 4 Legs lift the furnace to avoid contact with the ground - No concrete pad required.

8. Chimney Cap (Optional)

9. Vent Stack for non-pressurized operation

10. Heavy Duty Chimney

11. R-20 Fiberglass bat insulation. Great for preventing heat loss while allowing the furnace to "breathe" without corroding.

12. Round Water Jacket. Self cleaning design prevents corrosion promoting sludge buildup.

13. Round Firebox. Has many less welds than a square design making it less susceptible to leaks. Less possibility of ash and moisture buildup in the corners that can cause corrosion.

14. Boiler Plate firebox.

15. HybridFire technology (in models 150 and 250).

16. Heat transfer tubes in the hottest part of the fire for maximum heat transfer. 409 construction for maximum life.

17. Attractive Barn Shed Housing. It looks great in your yard. Our standard color is forest green, but we can match your paint chip exactly.

18. 20 Year Limited Warranty