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Old 2016-03-25, 9:02pm
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Speedslug Speedslug is offline
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Join Date: Mar 21, 2009
Location: Winnebago, MN
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You might be better off removing one ( or both ) of the glass panes and leaving the metal frame intact.

You can use a variety of methods for tying the ducting onto the metal frame from simple small C clamps through holes in plywood replacing the glass panes or perhaps some under counter sink clamps.

I can see that it is a window well so you will want to continue the duct work up a few feet above the ground level so the wind will keep the particulates from concentrating in a small spot.

Since you will have duct work on both side of the metal frame you can use a variety of "through the wall" exhaust ducting already manufactured for standard furnace flues and such.

Be sure to make certain that you have make-up air coming in from one of the other windows and if your are ambitious you could duct it to come up under your torch area so you won't be pulling heat out of the house or pulling furnace fumes backwards down the chimney.
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Last edited by Speedslug; 2016-03-25 at 9:08pm.
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