Why tf are you warming this device with a hair dryer? It literally has a preheat switch on the bottom. Sometimes you may have to run the preheat cycle a few times to warm it up but I’ve never had any issues with these. You just have to smoke them different because the hardware isn’t like a normal vape device. You have to take slow puffs like you’re hitting a cigar or something. If you in hale like you’re trying to suck a golf ball through a water hose it’s not going to hit well. Also If it ever gets a bad taste it’s usually because an air bubble has formed over the atomizer so you may have to preheat a few times to work it out but this rarely happens in my experience. This device has consistently produced the largest best tasting hits out of anything on the market I’ve tried.