# Preheat intake air **URL:** http://forum.driveonwood.com/t/preheat-intake-air/3192 **Category:** Small Engines **Created:** [April 25, 2017, 12:52am UTC](http://forum.driveonwood.com/t/preheat-intake-air/3192 "2017-04-25T00:52:07Z") **Posts on this page:** 1 **Showing post:** 2
### Author: ![Chris](http://forum.driveonwood.com/user_avatar/forum.driveonwood.com/chris/32/56161_2.png) [@Chris](http://forum.driveonwood.com/u/Chris) #### Post date: [April 25, 2017, 2:35am UTC](http://forum.driveonwood.com/t/preheat-intake-air/3192/2 "2017-04-25T02:35:18Z")
Good discussion here: > [@How much inlet air preheat is really necessary?](http://forum.driveonwood.com/t/how-much-inlet-air-preheat-is-really-necessary/2792): > > I am starting to plan for a light weight wood gasifier with a ceramic insulated firetube on the order of Dustin Moore and Paul McCombie’s units. I want it to be easily disassembled but the hard part is connecting the air preheat to the nozzles in a small space (I need to keep the overall dimensions down). My question is this. Did anyone ever do a study on how much preheat is necessary before you come to a point of diminishing return? On my charcoal gasifiers there is no preheat at all and they w… --- _[View the full topic](http://forum.driveonwood.com/t/preheat-intake-air/3192)._