As it should—the coil is an essential component in any vaping device. A coil burns and converts e-liquid into vapor for inhalation. Coils impact flavor and vapor production as well as battery life. Many devices are capable of delivering different levels of power to the coils. Generally speaking, coils made out of larger conductors require less power and provide more vapor. E-cigs or smaller pen styled vapes generally use smaller high resistance coils producing more heat and less vapor while mods and sub-ohm vapes can produce a larger amount of vapor with more options for coil replacement. A coil may be a stand-alone element that you can clean and replace within the atomizer (or in some cases even build yourself) or it may be part of a cartridge and not accessible or visible. Some devices use, or are capable of using, more than one coil (dual to quad coils). A traditional coil requires replacement on an ongoing basis. Many factors contribute to your coil’s longevity including the following: use of a high power supply (voltage/wattage); chain vaping (coils need the occasional cool down and rest); dry hitting (unlike dabbing, vaping coils are designed to burn liquid—not air); improper liquid levels (flooding or leaking juice may impact the coil’s designed operation); caramelized or gunky coils (If the coil is accessible you may prolong its lifespan by periodic cleaning); burnt wicks (e-juice with higher VG is thicker and may not saturate the wick before it can burn); or failing to prime the coil before its initial use (letting your juiced tank sit a few minutes before firing a new coil). Newer to the vaping market are various replacement coils which claim to promote better coil performance and longer coil use by utilizing conductive metal encased in a ceramic, quartz, or titanium cup, or by using quartz or ceramic rods with a metal coil wrap, also encased within a higher efficiency heat conductive cup. Some of these products may be marketed as “coil-less atomizers” but this is a misnomer as the heating element (or the coil) is still present but is covered by heat conductive material. Can these newer replacements greatly enhance your vaping experience? Perhaps—if you have an inexpensive device you may not have many replacement options or if you’re a tinkerer there may be no talking you out of building your own; but for the rest much of the fun in vaping is playing with the possibilities and designing your own experience from opportunity offered in a maturing yet still innovative marketplace. With quartz rods and cups, the benefit is little waste and more efficient burning and thereby less gunk. However, the trade-off is a higher price and hotter burning so you will likely need a device that can lower the power supply to compensate. Titanium cups are also a bit more expensive but provide the same increased burning efficiency. Ceramic use, around in one form or another since the onset of vaping, has evolved and is generally a cheaper option. There are concerns that particulate ceramic matter may escape with the vapor but studies on the matter are limited. Monitoring and playing around with your coil can be fun and provide you a more efficient and enjoyable vaping experience.