I have just installed a Rinnai hot air direct vent furnace. After converting the appliance to propane, I adjusted the gas pressures with a manometer according to the manufacturers instructions. The flame is mostly blue with orange at the ends of the flames. I also have a plume of what looks like moisture coming out of the exhaust manifold. Could I have adjusted the LPG pressure too high? The instructions call for 1.06 in/H2O at low manifold pressure and 3.8 in/H2O at high pressure. Can anyone suggest a solution? Thanks in advance, Jeffrey.