For those who don't directly inhale (DL) when sub-ohm vaping, experts often recommend using the preheating function found in most new devices. "Sub" means "under," so "sub-ohm" means "below ohm." Therefore, all resistances starting from 0.5 and going down to 0.8 and 1 ohm are called sub-ohm. Direct lung vaping provides a much more enjoyable vapor experience. However, to fully enjoy the vapor, one might have to compromise on several things. This is because direct lung vaping increases e-liquid consumption and reduces battery life.
How Does Preheating Become Active?
During direct lung vaping, lower ohm resistance wires have to use more power to reach the temperature needed to vaporize the e-liquid. Normally, when a person presses the mod's fire button, only the set wattage amount of electricity is sent to the resistance. If someone has their mod set to 60 watts, the mod will consistently send a full 60 watts of current to the resistance wire. When 60 watts reaches the wire, it provides heat. The wire continues to heat up and increase in temperature as long as the user holds the button. This is precisely where preheating becomes active. Preheating allows the user to adjust the initial current value the mod sends to the wire when the button is pressed, and how quickly that power is reached.
What Are the Advantages of Preheating?
Most users enjoy their mouth filling with vapor when using an e-cigarette. However, overly hot vapor can be uncomfortable. Preheating makes it possible to set the mod to provide the most enjoyable experience. However, if users who change their coils forget to adjust the preheating, their coils may become dysfunctional. Nevertheless, preheating is a personal preference. As long as time is dedicated to preheating, it is possible to achieve the desired performance.