HeatMaster G Series Wood Furnaces

HeatMaster G Series Wood Furnace Overview

The HeatMaster G Series is a gasification wood furnace approved for indoor and outdoor installation. The gasification process reduces wood consumption, and its low maintenance design allows easy loading and cleaning. It is available in water capacities of 100, 195 and 250 gallons and a heating capacity of up to 350,000 BTU. The unit is constructed of 409 stainless steel for greater heat transfer and tolerance and features heavy duty multi-layer insulation. An insulated hinged rear door provides easy access to the rear of the furnace, and a dual firebox door latch is designed for safety. The 2016 starting price of the G Series wood furnace is $8,495.00.

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Consumer Reviews of HeatMaster G Series


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #2 of 4 HeatMaster Wood Furnace
  • 91.89% of customers recommended

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HeatMaster G Series Wood Furnace Reviews

Showing 21-25 of 37 reviews

"Two year review."

5.0 rating
Very Satisfied

Hello, I thought I would take a moment and give a two year review on my Heatmaster ss g200 outdoor wood furnace. On October 9th 2015, I installed my stove with help from my dealer. This day took about three years of planning, preparation, and research. My situation is different than most, due to my terrain and home location. I was very interested in the gasification market for two main reasons, the wood consumption and smoke. I had been heating my home and shop with conventional wood stoves and while I loved the heat, they came with a multitude of problems. After all my research I made the decision to go with HeatMaster based on three things: the company, material (Stainless steel), and my local dealer's reputation. After installation there was a learning curve on this unit, but it didn't take long to realize that running this unit was by far easier than my indoor wood stoves. We are heating about 2400 square footage of home and 850 square footage in an uninsulated shop and of course our dhw. I have my house on forced air while I built a sealing blower for my shop. About two months into winter, my wife told me that the stove might be one of the best investments we had ever made. After my first winter season, my dealer contacted me and said that they would be coming around and making some upgrades to my unit. Heatmaster had made some changes to better the performance and reliability to these stoves. Instead of just making the changes on the newest models, they paid the dealers to make the changes to the units already in use in the field. For me this was a sign that I had defiantly made the right choice on my investment of an outdoor wood furnace. I personally have never had a company more willing to help solve problems and stand behind their product than Heatmaster. Regarding the stove itself, one of the best parts about the stove is its ability to heat for a long period of time. I load it in the mornings and evenings but for any reason I don't make it home until late at night I know that I still have plenty of wood/fire and my house is still warm. When I'm out of town, my daughter feeds the stove and is very comfortable using the smoke bypass and loading the stove. Wood consumption is good in my opinion; I burn about double what I burned in the house. In my estimate I'm around the 4-5 cord range which is extremely good. In closing thanks to my g200 I have unlimited hot water, a regulated warm house and no mess indoors anymore. Thanks, Todd in VA

Todd Shrewsbury

Pulaski, VA


4.0 rating
Somewhat Satisfied

I love saving money with our HeatMaster outdoor furnace. Our house is over 2000 sq. Feet. I like to keep the temperature at 75 degrees in the winter. So, when I come in from feeding the cows. I get warm. We also, heat our water with it. Our son likes long showers. That is a money saver. Our electric bill is usually about $65.00 in the winter. What I don't like about it is. How cold I get filling it up and taking the ashes out. How much the wood cost. When we have to buy it. Instead of cutting our own. "Do not buy this if you are afraid of hard work"

Barbara Morehead

Bland, VA

"Love it… Mostly"

5.0 rating
Very Satisfied

I have an early model Heatmaster g200. Prior to this I had an old Pacific Western. While very inefficient you could burn anything. My Heat Master is much more efficient and my wood consumption has dropped considerably. Also there is very little smoke now. Very nice. The only thing I don't like is that if your wood is green there will be moisture build up in the fire box. Not a real issue just looks messy. But here again that is really my problem because I haven't seasoned my wood as I should have. Definitely would recommend the stove!

Steven Yoder

"Outdoor wood furnace customer review"

4.0 rating
Somewhat Satisfied

We purchased our g200 furnace in 2014 and after a few learning curves with the gasification system we are quite pleased with it. Our old outdoor furnace was the conventional kind with the door vent. One difference we notice is that when you throw in a piece of wood, you can be guaranteed that all the wood is used and burnt down to ashes. Two suggestions I would make are to have the temperature light larger. I have trouble reading it without glasses on which I only wear for reading. Secondly, the back door is heavy and awkward to maneuver making it difficult to replace by yourself. I would suggest some sort of hinged affair. Overall, it is quite, efficient and smokeless, so I would give it an 8 out of 10 at this point in our first two years

Dave Rathwell

Perth, Ontario, Canada

"Warm times"

4.0 rating
Somewhat Satisfied

Our house has the most warm even heat it has ever had! I used to burn two wood stoves in the house for heat and their were hot and cold spots. Now the heat is even thru the house and I use less wood.

Carey Burford

Stamping Ground, KY

Other G Series Reviews

Online comments regarding the G Series seem to be mostly positive. Most responses to a homeowner on outdoorwoodfurnaceinfo.com who was thinking of buying one were very positive and said that it is a great unit, though a couple did mention that gasification units require more care than conventional units.

G Series Warranty

The warranty for the HeatMaster G Series wood furnace is comprised of the following:

  • Lifetime Limited Workmanship and Corrosion Warranty

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