The Da Buddha Vaporizer from 7th Floor is one of the original direct flow desktop vaporizers.
Available in both Silver and Black, consider the Silver Surfer (SSV) for a higher end glass direct flow desktop experience.
Ultra solid metal case, ceramic heater, glass heater cover, glass wand with whip. Everything you need for a good dry herb vaporizer experience. Just turn the knob to just under halfway, load your wand, inhale slowly.
If you only want to use dry herbs and direct flow, the Da Buddha is still a great choice for a desktop vaporizer. It still delivers a good smooth herbal vapor experience at an affordable price which is what is most important in the end.