With dmt, if smoking in a vape pipe (an eagle bills vape pipe), use a normal lighter heat, watch it melt and wait until you start to see the vapour build up, toke it and keep smoking that vapour as much as you can. if you think you have had enough then you need to carry on, because if you did have enough you wouldn't be able to think that. You have to smoke your hit within a minute so once you start to toke it, keep going until you blast off.
With salvia, use a torch lighter, bong it, burn it real hot and let it cream up the inside of the bong, then clear it in one and hold for 30 seconds, put the bong down before you breath out because that's when reality starts to dissolve.