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  • Writer's pictureLeslie Radcliffe

The VOR-TECH Combustion Chamber by POLAR G-Class makes us the "ULTIMATE" in wood funaces

Updated: Sep 30, 2019

The G-CLASS POLAR Outdoor Furnace Vor-Tech Combustion chamber burns 99.5% efficiency meaning a hot burn with very little waste resulting in all fire no smoke!

To get perfect combustion the right amounts of fuel(wood), heat, and oxygen (air) need to get thoroughly mixed with each other. 

This is exactly what happens at the heart of every G-CLASS Furnace inside the VOR-TECH combustion chamber. Preheated secondary air (oxygen) is mixed with the hot unburned smoke and gases (fuel) as they flow down into the VOR-TECH chamber from the primary chamber above.


It is about the seasoned wood we recommend burning in your furnace to maximize burn cycle efficiency.

The incoming gas flow is angled to encourage a swirling vortex inside the cylindrical chamber. The resulting 1700 - 2000°F vortex mixes the unburned smoke with the preheated secondary air and the results are truly amazing. Combustion efficiency reaches 99.5%. This means that every piece of wood and all the smoke and gases are burned. Every BTU of energy stored inside the firewood is released from the wood and becomes available to transfer into the water jacket to heat your home or shop or anything else that requires heat.

Les Radcliffe

Owner, Ultimate Outdoor Furnace

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