...After about a half-tank of juice.
A common problem is that the top half of the row of coils will end up getting much hotter than the bottom half, which leads to harsh throat-hits and, eventually, red-hot top coil wraps. After about a half-tank, you should see an even layer of carbon buildup on all of the wraps. If the bottom-half of your row of coil wraps is still shiny, then you may need to loosen them just a bit, or just try raking all of the wraps while dry-burning. If some glow brighter than others (while dry-burning), they should be in the middle of the row, and not on either end.
The second picture is a bit misleading, the positive lead is pulled away from the wick seam- it is not a popped coil, lol! I kept the picture in there because it shows the coil oxidation better than the first pic. If your coil is built right, the leads will not necessarily need to hug the wick.
The build in the pictures is 28-gauge Kanthal, a 7/8 wrap @ 1.3 ohms, solid 400 twill SS mesh wick, on the DuD.
Fun fact: There are over 722,000 capillary spaces (holes) in an average 400 SS DuD wrap (45mm by 65mm).
Off to bed now. Cheers
A common problem is that the top half of the row of coils will end up getting much hotter than the bottom half, which leads to harsh throat-hits and, eventually, red-hot top coil wraps. After about a half-tank, you should see an even layer of carbon buildup on all of the wraps. If the bottom-half of your row of coil wraps is still shiny, then you may need to loosen them just a bit, or just try raking all of the wraps while dry-burning. If some glow brighter than others (while dry-burning), they should be in the middle of the row, and not on either end.
The second picture is a bit misleading, the positive lead is pulled away from the wick seam- it is not a popped coil, lol! I kept the picture in there because it shows the coil oxidation better than the first pic. If your coil is built right, the leads will not necessarily need to hug the wick.
The build in the pictures is 28-gauge Kanthal, a 7/8 wrap @ 1.3 ohms, solid 400 twill SS mesh wick, on the DuD.
Fun fact: There are over 722,000 capillary spaces (holes) in an average 400 SS DuD wrap (45mm by 65mm).
Off to bed now. Cheers
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