Your Free standing stove or wood burner will require twin wall insulated flue. This twin wall flue system will safely remove the flue gases from the stove efficiently so that you can have a wood burner even where there is no chimney stack. A twin wall flue system, also known as double wall flue, insulated flue, twin skinned flue, chimney flue pipe has two layers of stainless steel metal with high density Rookwool insulation in between meaning the flue is insulated and the flue can be positioned as close as 50mm from combustible materials. Depending on the best flue route for your installation you may need an External flue run or an internal house flue run. Flue Direct offer a Free Chimney Design Service to assist you select the right flue supplies and quantities for your twin wall flue installation. See our full Twin Wall Flue System section and select the diameter you need and the finish stainless or black to see all the items in that range. Click here for Twin wall Flue.