Hawken Energy GX Wood Furnaces

Hawken GX Wood Furnace Overview

The Hawken Energy GX is a high efficiency, low emission outdoor hydronic wood furnace. The GX has a water capacity ranging from 107 gallons to 351 gallons and a heat capacity ranging from 144,000 maximum BTU to 248,000 maximum BTU. The GX uses Afterburner technology, a secondary burn chamber which allows the furnace to use 40% less wood and reduces emissions by over 90% compared to traditional furnaces, according to the manufacturer. Its large cast iron door is insulated for maximum efficiency and designed for easy loading. Units come in a standard green color but select models are available in a variety of colors, including camo. The 2015 starting price of the GX furnace is $6,489 plus shipping and installation. Financing is available.

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Consumer Reviews of Hawken GX


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #2 of 3 Hawken Wood Furnace
  • 36.84% of customers recommended

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Hawken GX Wood Furnace Reviews

Showing 6-10 of 19 reviews

"Horrible warranty"

1.0 rating
Very Unsatisfied

The roof of our furnace has holes in it. It is only 5 years old and we have been trying to get Hawken Energy to even call us back and they won't. It is our only source of heat and we are in our 70's . The furnace works all right but you get no service, and the door is cracked.

Larry Simonsen

Hessel, MI

"Horrible sales process"

1.0 rating
Very Unsatisfied

I've been trying to buy a Hawken for over 3 months now. My local municipality wants to see the Hawken Installation Guide they reference in the owner's manual. Multiple calls and emails have netted Hawken just sending me the same owner's manual over and over. Customer service fail. This is before the sale, how responsive will Hawken be after they have my money? Regardless of how great the product may be, support is critical with such a purchase and Hawken is not very friendly in this regard.

Brian S.

Mill Creek, PA

"Outdoor stove"

5.0 rating
Very Satisfied

One of the best stoves I've ever had. I'm almost 45 and have been heating with wood since I was 8 or 9. Would very much recommend this stove to anyone!


Kokomo, IN

"Greatest investment I ever made"

5.0 rating
Very Satisfied

Bought a Hawken Furnace two years ago, saved thousands my first year using it. I love my GX10 furnace. The only part that I've had problems with is cleaning on a constant basis, but it is worth it in the end.

T. Williams

Gary, IN

"Best investment ever!"

5.0 rating
Very Satisfied

My Hawken Energy GX10 outdoor wood furnace was the best investment I have ever made. It requires a little more maintenance than a traditional wood boiler, but totally worth it because it burns so much less wood. I love having a warm home and having heating bills that are almost zero. I don't know why every home in America doesn't have one of these…probably just a matter of time until the word gets out.

P. Quinn

Whitehall, MI

Other GX Reviews

There are very few online comments regarding the GX. A consumer on arboristsite.com asked for information about the GX and almost everyone who responded stated that they didn't know much about the unit.

GX Warranty

The warranty for the Hawken Energy GX wood furnace is comprised of the following:

  • 20-year warranty on parts
  • 20-year firebox guarantee against corrosion, pro-rated after the 5th year
  • 1-year warranty on electrical components

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