WoodMaster 4400
Outdoor Wood Furnace

(note: As of February 28, 2017, this model is only available for sale commercially in British Columbia)


WoodMaster 4400 Outdoor Wood Furnace

Download the Brochure (PDF)


  • Fan controlled draft
  • Heating Area: 5,000 sq. ft.
  • Fire Box: 38" x 44"
  • Door Size: 24" x 24"
  • Thickness: 1/4" Mild Steel Fire Drum & Water Jacket
  • Water Capacity: 117 Gallons
  • Warranty: 10 Year Limited
  • Overall Size: 5' x 6' x 7'6"
  • Shipping Weight: 1,809 lbs


Available in four standard colours: black, grey, brown, and green. Custom colour is also available.

With a maximum heating capacity of 5,000 sq. ft, the WoodMaster 4400 Heavy Duty furnace is ideal for heating large homes or home-shop combinations, as well as domestic hot water. It features double plumbing hookups to make installation to multiple applications easy. Applications include: home, shop, shed, greenhouse, pool, hot tub, snowmelt, and more.



No fuels enter the house to eliminate smoke, soot, and fire hazards and reduce the risk of dangerous carbon monoxide buildup.


Designed to deliver maximum Btu for more usable heat with less wood cutting and furnace-filling time.

WoodMaster exclusives:

Round chamber design provides optimum internal air movement and water circulation for even heat transfer and more efficient burn. This design also offers:

  • Forty percent fewer seams than a square box, for less chance of cracking or leaking and minimal pitting
  • No dead spots, so creosote doesn’t build up
  • Digital Electronic Temperature Control (ETC) for operating temperature settings, blower, reset, water level indicator and nightlight in an easy-to-read display.


Each WoodMaster wood furnace is installed outdoors,  25 to 400 feet from the home or structure(s) that it will heat. A core fire box is surrounded by a water jacket. The fire warms water to its optimal heating temperature, maintained by automatic controls. The warm water moves through insulated underground piping into the home’s heat exchangers and heating system. Inside, you control the temperature with your thermostat.


Outdoor wood furnace maintenance tips:

  • Manage combustion by keep a continuous supply of oxygen and using the proper amount and type (cut, seasoned) of fuel (wood)
  • Properly build fires:
    • Completely open the damper
    • Place paper/kindling over entire bottom of fire box
    • Never use flammable liquids
    • Warm the flue
  • Inspect chimney flue, stovepipe every month
    • Look for cracked liners, missing parts, bird nests or other hazards
  • Clean joints, chimney connectors and flues as necessary
  • Maintain a briskly burning fire to reduce creosote buildup
  • If you do have a chimney fire, inspect and repair weakened parts before restarting furnace
  • Properly, regularly dispose of ashes