Sub Ohm (Direct To Lung) Coils

What is a Sub-Ohm Coil, and How Does it Work?

A sub-ohm coil has a resistance below 1 ohm, allowing it to draw more power from the battery and produce larger vapour clouds. These coils work best at higher wattages and are designed for direct-to-lung (DTL) vaping, providing an open, airy draw and smoother throat hit compared to higher-resistance MTL coils.

What E-Liquids are Best for Sub-Ohm Coils?

Sub-ohm coils work optimally with high-VG e-liquids (usually 70% VG or higher), as VG produces thick vapour clouds and reduces the harshness at higher wattages. These coils are also suitable for low-nicotine e-liquids, as high nicotine strengths can be too intense for DTL vaping.

What Wattage Should I Use with Sub-Ohm Coils?

Sub-ohm coils generally operate in a higher wattage range, often between 30W and 120W, depending on the specific coil. Each coil typically has a recommended wattage range printed on it, which helps users avoid dry hits or coil burnout while ensuring the best balance of flavour and vapour production.

Why Do Sub-Ohm Coils Burn Out So Quickly?

Sub-ohm coils may burn out faster due to high power levels, frequent usage, or the use of sweetened, high-VG e-liquids that create more residue. Chain vaping (taking continuous puffs) can also shorten coil life. Proper priming, using the correct wattage, and allowing short breaks between puffs can help prolong coil lifespan.

How Do I Prime Sub-Ohm Coils to Avoid Dry Hits?

Priming involves saturating the coil’s wick before use. To prime a sub-ohm coil, apply a few drops of e-liquid directly onto the exposed cotton, then assemble the tank, fill it, and let it sit for 5-10 minutes. This ensures the cotton is fully soaked, preventing dry hits and prolonging coil life.