Polar G-Class
High Efficiency Gasification Wood Boilers

Introducing Polar’s G-Class, the ultimate solution for clean, hassle-free wood burning and a significant reduction in your heating expenses. Designed to prioritize simplicity and efficiency, the G-Class is equipped with an extensive range of features that ensure unparalleled product value. 

1

VOR-TECH Combustion System

Crafted from carefully selected materials the VOR-TECH combustion chamber reaches temperatures up to 2000F. Secondary combustion air insures total combustion including wood and smoke. Combustion efficiency reaches 99.5%, which means that every possible BTU of energy is released from the wood and made available as heat.

2

High Performance Heat Exchanger

The 2000°F air leaving the VOR-TECH chamber next flows into the high performance vertical flue type heat exchanger. The air leaving the heat exchanger has cooled to as low as 280°F accomplishing overall system efficiency as high as 86%.

3

EASY SWEEP System

Heat exchangers in any type of wood furnace need to be cleaned from time to time to maintain optimal efficiency. Moving the external EASY SWEEP handle activates the rocker system which moves the spirals inside the vertical heat exchanger up and down. This up and down sweeping action cleans the heat ex-changer surfaces.

4

Up to 86% Overall Efficiency

Using the appropriate North American test method the G-Class achieves overall efficiency over 86%. Using European test meth-ods these types of wood burning furnaces achieve overall effi-ciencies well over 90%.

5

SMOKE X-Tract System

A channel built into the top of the fire chamber and the suction fan work together to insure your comfort and safety during load-ing. When the fire chamber door is opened the suction fan pulls any smoke that would otherwise escape from the fire chamber back towards the chimney and away from you! A must have fea-ture for indoor installation.

6

STRONGWALL System

This system of removable panels protects the firechamber walls from the extreme conditions inside the firechamber increasing the life of the furnace. At the same time the panels keep the fire chamber hotter resulting in superior combustion.

7

CONNECT-EZ System

This system includes a boiler recirculation pump, boiler protec-tion valve and manifold and is installed into the plumbing com-partment at the rear of the furnace. This system greatly reduces installation cost, simplifies the installation and has multiple ports for easily connecting more than one primary distribution loop and pumps.

8

Ignition Door

The Ignition Door is there to make your life simple. It gives you di-rect access to the base of the fire chamber for easy maintenance. Lighting the wood at the base of the pile is a breeze and without any smoke rollout!

9

High Performance Insulation

Resin bonded glass fiber board insulation with a foil layer retains not only radiant heat but also infrared heat energy for superior insulating performance. This type of insulation is the best choice for outdoor furnaces because it does not trap or retain moisture.

10

GALVANEEL Housing

GALVANEEL provides superior durability against the outdoor ele-ments. Precision formed heavy 18 gauge GALVANEEL housing as-sembles to a tight fit keeping rain and snow from penetrating the furnace housing.

11

UV Resistant Powder Coating

Beautiful High Luster UV resistant powder coating on GALVANEEL steel gives exceptionally long lasting durability and good looks.

12

Powerful DC/ECM Induction Fan

ECM/DC motor benefits include much higher electrical efficiency when compared to older shaded pole and PSC motor technology. Other benefits include longer average service life as well as the ability to run the motor at any speed for optimal furnace performance.

Polar Furnace

High Efficiency Gasification Boiler

Experience the sheer convenience of operating and maintaining the G-Class, and revel in the remarkable smoke-free combustion it offers. Prepare to be astonished by the substantial reduction in wood consumption compared to outdated outdoor wood furnace technology. With the G-Class, we’ve taken outdoor furnaces to an entirely new level. Discover a product that stands in a league of its own within the industry.

G2

8 hr. output rating (BTU/hr)
60,000

Max. continuous output (BTU/hr)
160,000

Wood Load Door Opening (W x H) (in)
15 x 14

Fire Chamber Volume (ft)
5.6

Max. Wood Length (in)
21

Weight (lbs)
2200

Water Capacity (US gal.)
160

G2 Plus

8 hr. output rating (BTU/hr)
100,000

Max. continuous output (BTU/hr)
180,000

Wood Load Door Opening (W x H) (in)
15 x 18

Fire Chamber Volume (ft)
9.2

Max. Wood Length (in)
27

Weight (lbs)
2650

Water Capacity (US gal.)
200

G3

8 hr. output rating (BTU/hr)
140,000

Max. continuous output (BTU/hr)
200,000

Wood Load Door Opening (W x H) (in)
15 x 18

Fire Chamber Volume (ft)
12.7

Max. Wood Length (in)
27

Weight (lbs)
2750

Water Capacity (US gal.)
250

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