Herakles RTA Wicking Problem

[Kapstack_]

So yeah as the title says in having a hard time wicking the rta. Ive had it for about a month and no matter what I do I can't get it right. Whenever I take long drags j get burnt hits. The juice cant keep up with the wick it seems like. Using 24g kanthal dual coil at .25 ohms.

 

[Shawn Hoefer]

So yeah as the title says in having a hard time wicking the rta. Ive had it for about a month and no matter what I do I can't get it right. Whenever I take long drags j get burnt hits. The juice cant keep up with the wick it seems like. Using 24g kanthal dual coil at .25 ohms. View attachment 711665 View attachment 711667

First, try spacing the coils. Contact coils aren't needed on a regulated mod. Next, try a little more cotton in the coils, and a little less in the wick ports (brush out the ends before placing them in the ports). From the pics, you're overheating the centers, and likely getting hot spots on the legs at the outsides.

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[Kapstack_]

First, try spacing the coils. Contact coils aren't needed on a regulated mod. Next, try a little more cotton in the coils, and a little less in the wick ports (brush out the ends before placing them in the ports). From the pics, you're overheating the centers, and likely getting hot spots on the legs at the outsides.

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How do I not get hot spots on the legs?

 

[Shawn Hoefer]

Spaces coils generally do not develop hot spots (unless one screw is looser then another), and hot spots can also happen when the wick is not fully in contact with the coil... it's the air and vaporization of the juice that cools the coils, and if no wick/juice is in contact out towards the edges of the coil, they heat faster.

You're currently using contact coils. Contact coils retain heat at the center... more metal mass. Longer hits, or subsequent pulls can cause burns in the middle of the coil.

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[Kapstack_]

Spaces coils generally do not develop hot spots (unless one screw is looser then another), and hot spots can also happen when the wick is not fully in contact with the coil... it's the air and vaporization of the juice that cools the coils, and if no wick/juice is in contact out towards the edges of the coil, they heat faster.

You're currently using contact coils. Contact coils retain heat at the center... more metal mass. Longer hits, or subsequent pulls can cause burns in the middle of the coil.

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Still having the same issue. It seeps lile no matter what I do the juice can not just sick fast enough.

 

[Shawn Hoefer]

What wattage?

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[Kapstack_]

What wattage?

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Anything high like 65 up

 

[Shawn Hoefer]

Based on your resistance, I'm gonna guess 2.5 mm coils, 6 wraps. I suggest you bring it down to around 55 watts, or add a couple of wraps. 65 watts on the aforementioned coils is a pretty hot vape. Or, make a parallel build... simething like parallel 26 AWG KA1 6 wrap 3 mm 0.19 Ohms at 85 watts.

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[Kapstack_]

Based on your resistance, I'm gonna guess 2.5 mm coils, 6 wraps. I suggest you bring it down to around 55 watts, or add a couple of wraps. 65 watts on the aforementioned coils is a pretty hot vape. Or, make a parallel build... simething like parallel 26 AWG KA1 6 wrap 3 mm 0.19 Ohms at 85 watts.

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Pretty much spot on. I like to vape at high wattage. 26g would be best bet?

 

[Shawn Hoefer]

If you want higher wattages and avoid burnt hits more metal mass is needed, 26 parallel, 24 parallel, claptons, aliens, etc.

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[Kapstack_]

If you want higher wattages and avoid burnt hits more metal mass is needed, 26 parallel, 24 parallel, claptons, aliens, etc.

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Ah okay. Thank you.

 

[Kapstack_]

If you want higher wattages and avoid burnt hits more metal mass is needed, 26 parallel, 24 parallel, claptons, aliens, etc.

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Dual 24 parallel seems to be working great. Really good flavor too. My only question is why can't a basic 24 gauge dual coil not handle high wattage? Is it the specific rta oe just rtas in general?

 

[Shawn Hoefer]

It's just too much power for that small a coil. Get yourself a coil calculator or visit www.steam-engine.org. When building pay attention to the heat flux. A good range is between .20 and .30 Wmm^2. Any higher, and the cool will burn up quickly. Any lower will deliver a cool vape. 55 watts on your original coil delivered around .25 Wmm^2. 85 on your current build does the same.

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[Kapstack_]

It's just too much power for that small a coil. Get yourself a coil calculator or visit www.steam-engine.org. When building pay attention to the heat flux. A good range is between .20 and .30 Wmm^2. Any higher, and the cool will burn up quickly. Any lower will deliver a cool vape. 55 watts on your original coil delivered around .25 Wmm^2. 85 on your current build does the same.

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Ah okay I tried using 28 g before and that was a awful idea. I assume 22g would be my best bet for regular high wattage builds?

 

[Kapstack_]

I am going to assume that is a yes for 22 gauge. Thanks for all the help man! Really appreciate it.

 

[T0mmy1977]

I don't build claptons, etc., so I use 22g when I want a warm and cloudy vape. I've got it in a Troll RTA with spaced coils and it vapes/wicks great at 100 watts.