With airflow (while you're inhaling), you can hold down the button for as long as you want, you'll combust way before any damage is caused, so you really never have to worry about taking too long of a draw or holding the button down for too long. Remember that your inhale is drawing ambient air over the heater, so you're cooling the heater at the same time as it's trying to heat up.
Without airflow, there is no cooling, so the heater just goes up and up and up in temp. With the high heat module on a fresh battery you have about 7 seconds of ON time without airflow before the coil starts to glow. I'd recommend thats about the longest you want to hold down the button for a pre-heat. Any pre-heating over that isn't really doing all that much except wasting your battery.
A better way to pre-heat is, 3-5 seconds with the button ON, no airflow. Then start drawing slowly to build up the heat in the herb chamber.
Without airflow, the heat is basically just sitting there in the heater module, it's not being drawn into the herb chamber until you start inhaling and drawing that heat up through the stem.
If you have trouble drawing slow, try the 'cigar puff' method of multiple short puffs until you start getting vapor, then switch to a constant inhale. This works really well, imo.
Look forward to your thoughts!
Without airflow, there is no cooling, so the heater just goes up and up and up in temp. With the high heat module on a fresh battery you have about 7 seconds of ON time without airflow before the coil starts to glow. I'd recommend thats about the longest you want to hold down the button for a pre-heat. Any pre-heating over that isn't really doing all that much except wasting your battery.
A better way to pre-heat is, 3-5 seconds with the button ON, no airflow. Then start drawing slowly to build up the heat in the herb chamber.
Without airflow, the heat is basically just sitting there in the heater module, it's not being drawn into the herb chamber until you start inhaling and drawing that heat up through the stem.
If you have trouble drawing slow, try the 'cigar puff' method of multiple short puffs until you start getting vapor, then switch to a constant inhale. This works really well, imo.
Look forward to your thoughts!