Small but mighty, the C150 incorporates all the workmanship and quality of a HeatMasterˢˢ  furnace in a compact package while still heating a comfortably sized building.

Firebox
(L” x W” x H”)

28 x 24 x 34

Firebox Door
(W” x H”)

16 x 18

Water Capacity
(US Gallons)

65

Approximate BTUs

150,000

Dimensions
(W” x L” x H”)

50 x 36 x 78

Approx. Heating Space

2,700 sq. ft.*

*Well-insulated house.

The C250 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.

Firebox
(L” x W” x H”)

34 x 30 x 40

Firebox Door
(W” x H”)

20 x 20

Water Capacity
(US Gallons)

125

Approximate BTUs

250,000

Dimensions
(W” x L” x H”)

56 x 49 x 84

Approx. Heating Space

5,000 sq. ft.*

*Well-insulated house.

See Financing and Special Offers

Our C375 furnace is a comfortable fit for adding a shop or shed with it’s 7,000 square foot heating capacity. A very flexible solution.

Firebox
(L” x W” x H”)

46 x 32 x 42

Firebox Door
(W” x H”)

24 x 24

Water Capacity
(US Gallons)

175

Approximate BTUs

375,000

Dimensions
(W” x L” x H”)

69 x 50 x 92

Approx. Heating Space

7,000 sq. ft.*

*Well-insulated house.

See Financing and Special Offers

The large capacity of the C500 makes it ideal for heavy duty heating. Make the most of your coal supply with this powerful unit.

Firebox
(L” x W” x H”)

56 x 34 x 43

Firebox Door
(W” x H”)

24 x 24

Water Capacity
(US Gallons)

234

Approximate BTUs

500,000

Dimensions
(W” x L” x H”)

82 x 50 x 92

Approx. Heating Space

10,000 sq. ft.*

*Well-insulated house.

See Financing and Special Offers

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.

Firebox
(L” x W” x H”)

60 x 54 x 51

Firebox Door
(W” x H”)

42 x 30

Water Capacity
(US Gallons)

555

Approximate BTUs

800,000

Dimensions
(W” x L” x H”)

82 x 96 x 110

Approx. Heating Space

16,000 sq. ft.*

*Well-insulated house.

Comfortable Coal Heat

A special design for coal burning only, the C Series provides quality workmanship and materials with a design built for performance and efficiency. They work with almost any existing heating system and follow the HeatMasterˢˢ   standard for quality.

At HeatMasterˢˢ  we appreciate that your time is precious and we focus on providing time saving and convenient features to make running your furnace quick and simple. Some of our most popular features are:

  • Shaker grates and removable ash pan make cleaning a breeze. Just shake the grates and pull out the ash pan to remove ash.
  • The forced air fan pushes air through the grates at the bottom of the firebox, ideal for coal burning and fast heat recovery.
  • The hinged rear door makes access to the rear of the furnace for installation and servicing simple.

What does it mean for you? A more comfortable coal burning experience.

High Efficiency 

Although the grated design creates a very high firebox temperature, the triple heat exchange pass flue dumps this heat into the water jacket before the exhaust exits the furnace. This reduces fuel consumption by 20-30% and eliminates spark or flame from the chimney. This baffle system was also designed to minimize ash buildup, saving you time and effort.

Designed for Coal

The C Series furnaces uses a bottom air design that that is ideal for the burning of coal. The deep firebox of the C Series also works particularly well for coal burning.

409 Stainless Steel - The Best Material

We combine the best materials with expert engineering to create the most rugged, longest lasting furnaces available. Titanium enhanced, corrosion resistant 409 Stainless Steel is the only product that can provide the right blend of longevity, cost-effectiveness and other critical traits that meet the HeatMasterSS standard of excellence.

409 Stainless Steel is the best choice for your furnace because:

  • It resists corrosion. 409 Stainless steel is coated with a chromium film so it will not corrode from:
    • wet ashes or creosote in your firebox
    • sweating on your water jacket
    • corrosive elements in your water
  • It can withstand higher continuous temperatures. 
  • It transfers more heat. Heat gets to your water at a higher rate which will save you on fuel.
  • It has a low Thermal Expansion Rate. It won’t crack and warp in a high heat environment.

HeatMasterSS furnaces are built to the very highest standards with ISO 9001 Certified manufacturing processes.

Additional Features

Additional Features

  • 409 Stainless Steel – Titanium enhanced and corrosion resistant, it is the only product that can provide the right blend of longevity, heat transfer and other critical traits that meet the HeatMasterSS standard of excellence.
  • Heatmasterss warranty – We back each furnace with our best-in-industry Lifetime Limited Warranty which is twice as long as the leading mild steel competitor.
  • Easy access hinged rear door – The insulated rear door is built with a unique hinge design which allows for easy access to the rear of the furnace and quick and easy removal of the door if required without the use of tools or hardware.
  • Safe easy-to-use dual firebox door latch – Our carefully designed latch catches the door so it doesn’t swing completely open and expose the user to excessive heat.
  • Heavy duty multi-layer insulation
  • Powder coat finish
  • ISO 9001 Certified – HeatMasterSS furnaces are built to the very highest manufacturing standards.