Looks like what it says is that if you're running propane, then you want
30 to 37mbar (11.8 to 14.6 w.c.), if you're running butane, then 28 to
30mbar.

It says "Propane gas @ 30mbar will result in a significant reduction in
heat putput," by which I think they mean that propane at 30mbar or less
will result in reduction in heat. They also probably mean "output." Or
maybe "putput" means your heater will make a "putt-putt" sound. Well,
probably not.

Pressure units converter here: http://www.maxitrol.com/w_max_uc_pressure.htm

--
Mike "Rocket J Squirrel" Elliott
71 Type 2: the Wonderbus
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
KG6RCR

Loren Busch typed:
> RE: Pressures
> Note the comments here about pressure, Propane vs. Butane, and pressure.
> Confusing....
>
> http://propexheatsource.co.uk/heatsource.htm
>