Do NOT click on any vaporpedia.com links. The domain has been compromised and will attempt to infect your system. See https://fuckcombustion.com/threads/warning-vaporpedia-com-has-been-compromised.54960/.
Who are you asking? Fuckcombustion is just a forum. We don't manufacture vaporizers. The portable and plug-in sections have plenty of convection models. Do some looking around before you start a thread.