There is a gray cover over the opening (in front of the torch) to keep the cold air out when I'm not torching. The only thing I would change in this set-up is I would push it all back about 5-8 inches to give me a little more clearance. Tha part that is covered is a ducting reducer we had modified and my husband cut an opening on the side and added the hood flared part. I can post pics of it uncovered if you want to see it.
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Norma
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