You rely on cruise control for your vehicle, you deserve it with your boiler. The All New G-Series.

The HeatMasterss G Series is widely recognized as the flagship furnace of the industry.

Many new innovative features make the new G Series line of furnaces the easiest to operate, longest lasting and highest performing in all real world applications.

NEW Home Monitoring is now standard on 2020 Models! No monthly fees, no subscriptions.

Read the Full Brochure   Financing Options

Heatmaster SS G7000 Furnace

The G4000 is the perfect marriage of size, performance and efficiency for heating a single residence or multiple buildings up to 4000 ft2.

Approx. Heating Space* 4,000 sq. ft.
8 Hour Burn Rate 90,000 BTU/hr
Water Capacity (US Gallons) 116
Firebox (L″ x W″ x H″) 23 x 22 x 32
Firebox Door (W″ x H″) 20 x 20
Weight 1,353 lbs
Outlets 1 set of 1″ and 1 set of 1.5″
Chimney Size 6″
Dimensions*** (L″ x W″ x H″) 59 x 40 x 83
* Well-insulated house.
** BTUs are approximate and will vary depending on fuel quality.
*** Height of the furnace is to the top of the lift hook
Heatmaster SS G7000 Furnace

The G7000 was purposely designed for larger applications and multiple structures. A larger firebox gives greater heating capacity and long burn times for buildings up to 7,000 ft2.

Approx. Heating Space* 7,000 sq. ft.
8 Hour Burn Rate 165,000 BTU/hr
Water Capacity (US Gallons) 195
Firebox (L″ x W″ x H″) 29 x 29 x 38
Firebox Door (W″ x H″) 20 x 20
Weight 2,400 lbs
Outlets 1 set of 1″ and 1 set of 1.5″
Chimney Size 6″
Dimensions*** (L″ x W″ x H″) 71 x 52 x 85
* Well-insulated house.
** BTUs are approximate and will vary depending on fuel quality.
*** Height of the furnace is to the top of the lift hook

Rugged and Easy to Use

We appreciate that your time is precious so convenience is a top priority for our G Series furnaces.

  • Less cleaning and maintenance: The Easy Clean handle makes cleaning the heat exchange tubes a breeze. No brushing tubes or scraping creosote, you can load and clean your furnace in 5 minutes! 
  • Stay clean while loading: The Smokeless Loading handle lets you enjoy clean, easy loading. Just pull the handle before opening the door to eliminate smoke coming out at you while loading.
  • Less wood cutting: These high efficiency furnaces use up to 50% less wood than conventional furnaces, saving you time cutting and loading wood and cleaning ash.
  • Indoors and outdoors: G Series furnaces are safe and clean enough to be installed in a garage, shop or outbuilding as well.

Works Best With Rhinoflex Pipe

Rhinoflex PipeUse Rhinoflex pipe to make sure all your heat is delivered right to where you need it for as long as you own your furnace. Rhinoflex pipe by HeatmasterSS offers the most efficient, rugged pre-insulated pipe on the market while being easy to install and economical.

Furnace Home Monitoring Interface

Home Monitoring is Now Included with all 2020 G Series!

Monitor and control your boiler from the comfort of your home using any device on your home network!

Each furnace comes with a LAN cable port to hook up to a network cable from your home or to a wireless router (cable & router not included).

  • Standard on all G Series
  • No monthly fees
  • No subscriptions

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.

The Highest Efficiency

Wood Gasification

Wood gasification is the most efficient process available for wood burning. Wood gas is generated in a high temperature reaction (>700° F) between the wood and a limited amount of oxygen. The heat and lack of oxygen “bakes” the wood, causing the gases in the wood to be released.

The wood gas mixture that is created in the firebox then gets forced through the base of the fire along with any ash that would come with it and burned at temperatures around 2000° F in the gasification chamber. This creates a very hot, very clean burn which helps you get the most out of your fuel. After the gas is burned, the heat is transferred to the water jacket using the heat exchange tubes. Normal exit temperatures of the exhaust are 200 – 300 F.

The most notable indicator of effective gasification is the lack of smoke exiting the chimney.
The gasification process creates longer burn times and can reduce wood consumption as much as 50% compared to a standard wood furnace.

What does it mean for you?

  • Less wood cutting
  • Less ash removal
  • Fewer emissions
  • Fewer trips to the furnace

Bottom line – more heat for less

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.
  • EPA Certified –  We exceed government regulations by over 75%.
  • 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.

Financing is availableread more about your options!

Contact Us For More Information

Call 1-866-620-HEAT (4328) or Email email hidden; JavaScript is required