[TheForge] Image posting of Steve's Dedicated side forge

[dave schwellinger, the other d]

Dan,
 
Injecting oxygen into the air inlet stream provides you with a hotter forge gas inlet temperature.  Since air is approximately 78% nitrogen,  it has to heated up by the burning fuel.  Adding oxygen reduces the amount of nitrogen to be heated and thus the inlet gas to the forge is hotter.  Easy example is the temperature of a handyman's propane torch versus a propane/oxygen cutting torch.   

>Jerry I've been thinking (scary thing)you mentioned  adding the fuel at the
>fan. .My lack of experience with blown or fan assisted forges  this scares
>me  I think air fuel  in tube... boom. So I went the other way what would
>happen if you injected Oxygen at the fan?  Would that increases heat or is
>there more than enough o2  in air for our needs?
>Dan Scheid