Small but mighty, the MF 3000e outdoor coal furnace incorporates all the workmanship and quality of a HeatMasterss furnace in a compact package while still heating a comfortably sized building.

• Approx. Heating Space*
  3,000 sq. ft.
• Maximum BTU’s**
  150,000/hr
• Water Capacity
  60 gallons
• Weight
  950 lbs
• Outlets
  1 set of 1” feed and return
• Chimney Size
  6”
• Firebox (L” x W” x H”)
  28 x 24 x 32
• Firebox Door (L” x W”)
  16 x 18
• Dimensions*** (L” x W” x H”)
  52 x 36 x 78

The MF 5000e has that bit of extra capacity for larger homes or out
buildings coupled with all the design, efficiency and quality that
HeatMasterss customers have come to expect.

• Approx. Heating Space*
  5,000 sq. ft.
• Maximum BTU’s**
  250,000/hr
• Water Capacity
  125 gallons
• Weight
  1,300 lbs
• Outlets
  2 sets of 1” feeds and returns
• Chimney Size
  6″
• Firebox (L” x W” x H”)
  34 x 31 x 38
• Firebox Door (L” x W”)
  20 x 20
• Dimensions*** (L” x W” x H”)
  56 x 49 x 84

Our MF 7000e furnace is a comfortable fit for adding a shop or shed with it’s 7,000 square foot heating capacity. A very flexible solution.

• Approx. Heating Space*
  7,500 sq. ft.
• Maximum BTU’s**
  375,000/hr
• Water Capacity
  180 gallons
• Weight
  1,700 lbs
• Outlets
  2 sets of 1” feeds and returns
• Chimney Size
  6”
• Firebox (L” x W” x H”)
  46 x 34 x 40
• Firebox Door (L” x W”)
  24 x 24
• Dimensions*** (L” x W” x H”)
  69 x 49 x 89

The large capacity of the MF 10000e makes it ideal for heavy duty heating. Make the most of your coal supply with this powerful unit.

• Approx. Heating Space*
  10,000 sq. ft.
• Maximum BTU’s**
  500,000/hr
• Water Capacity
  230 gallons
• Weight
  2,000 lbs
• Outlets
  2 sets of 1.5” feeds and returns
• Chimney Size
  8″
• Firebox (L” x W” x H”)
  56 x 34 x 42
• Firebox Door (L” x W”)
  24 x 24
• Dimensions*** (L” x W” x H”)
  81 x 51 x 93

The largest unit we make is ready for anything. Four sets of feeds on
the back make it a natural to heat multiple structures with ease.

• Approx. Heating Space*
  20,000 sq. ft.
• Maximum BTU’s**
  800,000/hr
• Water Capacity
  555 gallons
• Weight
  4,000 lbs
• Outlets
  4 sets of 1.5” feeds and returns
• Chimney Size
  10″
• Firebox (L” x W” x H”)
  60 x 52 x 52
• Firebox Door (L” x W”)
  42 x 30
• Dimensions*** (L” x W” x H”)
  98 x 82 x 100