I have a vaporbox which is basically a knock-off of a vapor brothers except with a ceramic heater. Its so much more consistent when it comes to adjusting the heat you want. It actually starts at zero or close to it on the left most and hottest on the right most setting. The vapor brothers I have used really only starts to get hot after you pass the middle (pointing straight up on the knob) and its hard to keep it where you want it.