Vape Coils Explained: Types, Resistance, Wattage, and lifespan causes and fixes

A vape coil is the heating element in a vape device that turns e-liquid into vapour. It consists of a metal housing, wicking material, and a coil wire, with different coil types affecting flavour, vapour production, and performance. Mesh coils offer fast heating and smooth draws, while materials like Kanthal, stainless steel, and ceramic provide varying resistance and durability.

What Is a Vape Coil?

A vape coil is the heating element inside a vape device. This component converts e-liquid into vapour by heating up when an electrical current flows through it. A standard vape coil consists of three essential parts:

• Coil housing – A metal casing that holds the internal components. This part has holes called "ports" that allow e-liquid to reach the wick.

• Wicking material – A highly absorbent material, usually cotton, that soaks up the e-liquid. This ensures a steady supply of liquid for vaporisation.

• Coil wire – A metallic wire, often wound into a spiral or made from mesh, that heats up when power is applied. This process turns the soaked e-liquid into an inhalable vapour.

Vape coils are sometimes referred to as atomiser heads. The performance of a vape largely depends on the type of coil used.

What Are Different Types of Vape Coils?

Vape coils come in various designs and materials. The coil type affects flavour, vapour production, and overall performance.

• Mesh Coils – These coils use a fine metal mesh instead of a traditional wire. A larger surface area ensures faster heating, even vaporisation, and improved flavour. Mesh coils operate efficiently at higher temperatures and offer a smoother draw.

• Spiral Wire Coils – These coils use a simple spiral-wound metal wire. Heat distribution can be uneven, leading to a shorter lifespan when used at high wattages. These are commonly found in Mouth-to-Lung (MTL) devices and work best at lower temperatures.

• Ceramic Coils – These coils incorporate a porous ceramic material that improves airflow and enhances flavour. A high heat tolerance helps prevent dry hits and extends the coil’s lifespan.

• Stainless Steel Coils – These coils are made from durable stainless steel alloys. Compatibility with both wattage and temperature control (TC) modes makes them highly versatile.

• Titanium Coils – These coils are soft and easy to shape. A crisp, clean flavour is one of their main advantages. However, titanium coils must be used with temperature control to prevent overheating, as they are more flammable than other coil types.

• Kanthal Coils – These coils consist of iron, chromium, and aluminium. A fast ramp-up time and reliable vapour production make Kanthal a popular choice. These coils can only be used in wattage mode.

• Nickel Coils (Ni200) – These coils contain 99.6% nickel and are designed for temperature control vaping. A very low resistance allows them to operate at lower voltages. Nickel coils should never be used in wattage mode, and some vapers may have allergic reactions to nickel.

• Nichrome Coils – These coils consist of 80% chromium and 20% nickel. A quick ramp-up time and high heat tolerance make them ideal for sub-ohm vaping. Nichrome coils resist oxidation and are only compatible with wattage mode.

Each coil type delivers a unique vaping experience. Choosing the right coil depends on individual preferences, vaping style, and device compatibility.

What Is Coil Resistance in Vaping?

Coil resistance measures how much the coil restricts electrical current. Resistance is measured in ohms (Ω). The coil material, wire thickness, and number of wraps affect its resistance.

• High-resistance coils – These coils have a resistance above 0.8 ohms. A lower current passes through, producing a cooler vapour and conserving battery life. These coils are used for MTL vaping, offering enhanced flavour and a restricted draw.

• Low-resistance coils (sub-ohm) – These coils have a resistance below 0.6 ohms. More current flows through, generating warmer vapour and larger clouds. Sub-ohm coils require higher wattage and consume more e-liquid.

The resistance of a coil determines the power and experience of a vape session.

What Is the Relationship Between Coil Resistance and Wattage?

Coil resistance directly influences the wattage needed for optimal performance.

• Lower resistance coils require higher wattage to generate sufficient vapour. A larger current flow increases heat output.

• Higher resistance coils work efficiently at lower wattage. Less power is needed to maintain consistent performance.

Many modern vape devices feature Smart Mode, which automatically adjusts wattage based on coil resistance. Manually adjusting wattage within the recommended range ensures longevity and prevents burnt coils.

How Long Does a Vape Coil Last?

A vape coil typically lasts between one to two weeks. A moderate vaping frequency extends coil life, while heavy usage shortens it.

• Frequent vapers require coil replacement weekly. A high e-liquid consumption rate accelerates coil wear.

• Moderate vapers enjoy a two-week coil lifespan. A balanced usage pattern minimises residue buildup.

• Occasional vapers extend coil usage up to a month. A lower wattage preference reduces heat stress.

Vape coil longevity depends on several factors, including vaping habits, wattage settings, and e-liquid composition. Proper maintenance extends coil life and enhances performance.

How to Extend the Lifespan of Your Coil?

Vape coil longevity increases with proper care and usage habits.

1. Prime the coil – A pre-saturation process prevents dry hits.

2. Avoid chain vaping – A short pause between puffs allows wick saturation.

3. Use the correct wattage – A manufacturer-recommended range prevents overheating.

4. Keep the tank filled – A consistent e-liquid level reduces dry burns.

5. Choose low-sweetener e-liquids – A reduced sugar content prevents coil gunk.

6. Use temperature control mode – A regulated heat setting prolongs coil life.

A few preventive measures improve coil efficiency and reduce frequent replacements.

How Do You Know When to Change a Vape Coil?

A coil replacement becomes necessary when performance declines. Over time, residue buildup, excessive heat exposure, and repeated usage wear out the coil. A coil that no longer functions properly affects flavour, vapour production, and overall vaping quality. Identifying early signs of coil deterioration helps avoid unpleasant experiences.

• Flavour Loss

A weak or muted taste indicates coil deterioration. A fresh coil delivers a strong and distinct flavour profile, allowing users to fully enjoy their chosen e-liquid. Over time, residue from previous vaping sessions accumulates on the coil and wick. The buildup of burnt e-liquid and sweeteners clogs the wick, preventing it from absorbing fresh liquid effectively. As a result, the vapour tastes dull or completely flavourless.

• Burnt Taste

A harsh and unpleasant sensation signals wick damage. A properly functioning coil provides a smooth and enjoyable inhale, free from any burnt or acrid taste. A burnt flavour occurs when the wick becomes scorched due to excessive heat exposure or insufficient saturation. If the coil is not replaced in time, every inhale becomes unbearable, making it difficult to continue vaping.

• Reduced Vapour Output

A lower vapour density suggests coil inefficiency. A fresh coil produces thick and dense clouds, especially in sub-ohm setups designed for high vapour production. Over time, carbon deposits form on the coil surface, restricting airflow and reducing vapour output. A clogged or damaged wick also limits e-liquid absorption, further affecting cloud production. If vapour output becomes significantly weaker despite using the correct settings, replacing the coil restores performance.

• Gurgling Sounds

A flooded coil creates bubbling noises. A properly functioning coil vaporises e-liquid smoothly without unusual noises. If excess e-liquid saturates the wick or leaks into the airflow chamber, a gurgling or bubbling sound occurs when inhaling. This issue often results from an old coil struggling to wick e-liquid efficiently. A fresh coil prevents oversaturation and eliminates unwanted noises.

• E-liquid Leaks

A worn-out coil may cause tank leakage. A vape tank relies on a properly working coil to maintain a sealed and balanced airflow system. When a coil degrades, it struggles to retain e-liquid within the wick, allowing excess liquid to escape through the airflow vents. Frequent leaks indicate that the coil no longer functions properly and needs to be replaced.

A vape coil replacement restores the quality of a vaping session. Keeping an eye on these signs ensures a smooth and enjoyable vaping experience without unnecessary disruptions.

What Are the Signs of a Burnt Coil?

A burnt vape coil produces an unpleasant experience. Recognising the symptoms of a burnt coil helps prevent continued use and ensures a better vaping experience.

• A Strong Burnt Flavour

A burnt coil gives off a harsh, acrid taste with every inhale. The burnt taste overpowers the e-liquid’s flavour, making vaping uncomfortable. This occurs when the wick inside the coil gets charred from overheating or insufficient e-liquid saturation. A burnt wick cannot absorb fresh liquid properly, leading to dry hits and an unpleasant taste.

• A Discoloured or Blackened Wick

A clear white wick indicates a fresh coil. Over time, exposure to high temperatures and thick e-liquids darkens the wick. A burnt coil shows visible signs of damage, with a blackened or dark brown wick that no longer absorbs e-liquid effectively. If the wick appears severely discoloured, replacing the coil improves vapour quality and flavour.

• A Harsh Throat Hit

A burnt coil increases throat irritation. A properly functioning coil provides a smooth inhale, allowing users to enjoy their vape without discomfort. A burnt wick produces a harsh throat hit, causing coughing and irritation. The unpleasant sensation intensifies with each puff, making continued vaping difficult.

• A Significant Vapour Reduction

A burnt coil struggles to produce vapour efficiently. Residue buildup and heat damage reduce the coil’s ability to vaporise e-liquid effectively. Vapour output drops noticeably, even when using a high-powered device. Replacing the coil restores vapour production and enhances the overall vaping experience.

A burnt coil negatively impacts vapour flavour and inhalation comfort. Regular coil replacement prevents these issues and ensures consistent performance.

How to Stop a Vape from Burning Coils?

A few simple steps prevent coil burning. Proper coil care enhances longevity and maintains optimal performance.

Prime the Coil Before Use

A new coil must be primed before first use. Applying e-liquid directly to the wick ensures proper saturation and prevents dry hits. Skipping this step leads to immediate wick burning, shortening the coil’s lifespan. Allowing the coil to sit in a filled tank for at least 5-10 minutes further enhances saturation.

Avoid Chain Vaping

A short pause between puffs allows the wick to reabsorb e-liquid. Chain vaping, or taking multiple hits in quick succession, prevents proper wicking and leads to dry hits. A simple habit change preserves coil integrity and improves vaping sessions.

Keep the Wattage Within Recommended Levels

Each coil has a manufacturer-recommended wattage range. Exceeding this range causes the coil to overheat, burning the wick prematurely. Adjusting the wattage according to coil specifications prevents damage and extends lifespan.

Use Temperature Control Mode

A temperature control (TC) setting regulates coil heat output. TC mode prevents overheating by adjusting power levels based on coil temperature. Using compatible coils with TC settings provides additional protection against burning.

Take Slower and Longer Draws

A steady inhalation technique ensures even e-liquid vaporisation. Short, forceful puffs cause excessive heat buildup, damaging the wick. Slower draws allow heat to distribute evenly, preventing burnt spots.

A careful vaping approach prevents burnt coils and extends coil lifespan. Simple adjustments in vaping habits improve coil durability and overall satisfaction.

How to Fix a Burnt Coil?

A completely burnt coil requires replacement. A minor burn may be managed temporarily.

Soak the Coil in Warm Water

A warm water soak removes excess residue. Submerging the coil in warm water for several hours loosens carbon buildup. Gently shaking the coil in water further dislodges debris.

Allow It to Dry Completely Before Reinstallation

A coil must dry completely before reuse. Any remaining moisture interferes with vaporisation. Leaving the coil in open air for 24 hours ensures thorough drying.

Test at a Lower Wattage

A burnt coil may still function at reduced power. Lowering the wattage minimises stress on the damaged wick, allowing for temporary use. If the burnt taste persists, replacing the coil remains the best option.

A burnt coil delivers poor performance, making replacement the most effective solution.

How to Change a Vape Coil?

A vape coil replacement follows a step-by-step process.

1. Detach the Tank from the Vape Device
   Removing the tank provides access to the coil. Holding the tank upright prevents e-liquid spills.
   
   

2. Empty or Invert the Tank to Prevent Leakage
   An empty tank reduces mess during coil replacement. If a tank contains e-liquid, inverting it minimises leakage.
   
   

3. Unscrew and Remove the Old Coil from the Base
   A gentle twisting motion detaches the coil. Stuck coils may require additional force but should be handled carefully to avoid tank damage.
   
   

4. Prime and Install the New Coil by Applying E-liquid
   A few drops of e-liquid directly on the wick ensure full saturation. Inserting the coil securely into the tank base prevents leaks.
   
   

5. Reassemble and Refill the Tank with Fresh E-liquid
   A properly sealed tank prevents leakage. Filling the tank with e-liquid before use enhances performance.
   
   

6. Let the Coil Soak Before First Use
   A 5-10 minute wait allows the wick to absorb e-liquid fully. Taking a few dry puffs without activating the device improves saturation.
   
   

A properly installed coil ensures optimal vapour production and flavour.

How to Clean a Vape Coil?

A coil cleaning process improves temporary performance.

• Soak the Coil in Warm Water – Removing excess gunk refreshes the coil.

• Use Alcohol for Deep Cleaning – Dissolving residue enhances efficiency.

• Dry-Burn Rebuildable Coils – Briefly heating the coil removes excess carbon.

A clean coil enhances flavour but does not restore a burnt wick.

What Is Vape Coil Priming?

Priming a vape coil is the process of pre-saturating the coil’s cotton wick with e-liquid before using it. This step ensures the wick absorbs enough liquid, preventing dry hits and a burnt taste.

When a coil is dry and heated, the cotton inside burns instantly, ruining the coil. Once burned, the wick cannot absorb e-liquid properly, resulting in poor flavour, reduced vapour production, and an overall bad vaping experience. Properly priming the coil ensures smooth and consistent performance while extending its lifespan.

Why Is Priming a Vape Coil Necessary?

1. Prevents Dry Hits and Burnt Taste

A dry wick burns instantly when heated, leading to a harsh burnt taste. Once burned, the coil is permanently damaged and must be replaced.

2. Extends Coil Lifespan

Properly saturated cotton lasts longer because it doesn’t get burned immediately. This saves money on frequent coil replacements.

3. Improves flavour and vapour Production

A well-primed coil delivers better flavour and vapour because the wick is fully soaked, allowing even heating and vaporisation.

4. Reduces the Break-In Period

New coils often take time to reach peak performance. Priming them properly allows for an immediate, smooth experience without a "new coil" taste.

How to Properly Prime a Vape Coil

Step 1: Gather Your Materials

• A new vape coil

• E-liquid of your choice

• Your vape tank or pod system

• A paper towel for spills

Step 2: Apply E-Liquid to the Coil’s Cotton

Take the new coil out of the packaging and locate the exposed cotton inside and around the coil. Add a few drops of e-liquid directly onto the cotton, allowing it to soak in.

Be careful not to flood the coil. Add 3-5 drops to smaller coils (pod systems, MTL coils) and 5-10 drops to larger sub-ohm coils.

Step 3: Install the Coil in Your Vape Tank

Once the cotton appears saturated, insert the coil into your tank or pod system. Make sure it is securely fastened to prevent leaks.

Step 4: Fill the Tank with E-Liquid

After installing the coil, fill the tank or pod with e-liquid. Avoid overfilling, as this can cause leaks and gurgling.

Step 5: Let the Coil Soak (Wait Time: 5-10 Minutes)

Allow the coil to sit in the filled tank for at least 5-10 minutes before using the device. This ensures the wick fully absorbs the e-liquid and prevents burning.

For thicker high-VG e-liquids, waiting 10-15 minutes is recommended, as they take longer to saturate the cotton.

Step 6: Take Primer Puffs (Optional but Recommended)

Before firing the device, take a few draws without pressing the fire button. This helps pull e-liquid into the wick for even saturation.

If using a pod system or an auto-draw device, cover the airflow holes slightly while taking primer puffs to increase liquid absorption.

Step 7: Start at a Low Wattage and Gradually Increase

If your vape device has adjustable wattage, start at a lower wattage than the recommended range and take a few puffs. Gradually increase the wattage to the desired level to avoid burning the coil.

For example, if the coil's range is 40-60W, begin at 30W, take a few puffs, and then slowly increase to your preferred wattage.

Additional Tips for Extending Coil Life

Use the Right E-Liquid – High-VG e-liquids work best with sub-ohm coils, while high-PG e-liquids are ideal for MTL coils. Using the wrong ratio can shorten coil life.

Avoid Chain Vaping – Taking too many puffs in a row overheats the coil, leading to burnt wicks and reduced longevity.

Refill Before the Tank Is Empty – Running your tank dry causes the wick to burn, damaging the coil. Always keep some e-liquid in the tank.

Keep Airflow Balanced – Too much airflow can dry out the wick faster, while too little can cause flooding and spit back. Adjust airflow to find the right balance.

Replace Coils When Needed – Even with proper priming, coils wear out over time. If you notice a burnt taste, weak flavour, or reduced vapour, it’s time for a new coil.

Priming a vape coil is a simple but crucial step in maintaining your device and ensuring a great vaping experience. Taking a few minutes to properly soak the wick prevents dry hits, improves flavour, and extends coil life. Always follow these steps when installing a new coil to get the best performance from your vape.