Heat From Ovens
We find that we lose anywhere from 5–8% of the oven’s air volume depending on plant conditions (shipping doors opening and closing, etc.). We have air return soft seal ducting from the part openings back to the burner box (roof-mounted) and have also tried a hard seal, but the hard seal made things worse.
Q. I operate a powder coating shop. Our part opening is 6 × 9 ft and we have a combination drying/curing oven. The drying oven is a straight shot and the cure oven is a two-pass, meaning it goes in, turns 180 degrees and then comes out. We find that we lose anywhere from 5–8% of the oven’s air volume depending on plant conditions (shipping doors opening and closing, etc.). We have air return soft seal ducting from the part openings back to the burner box (roof-mounted) and have also tried a hard seal, but the hard seal made things worse. We are located about 55 miles north of Miami and at times the shop gets to be 110°F with parts running through, etc. The majority of our parts are aluminum.
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