Changing to a different type of fuel isn't as easy as adding a tank and just running it to the heater. Since I have a Dickinson heater the oil-metering unit would have to be changed for the different fuel, all had to do with viscosity.
I have 37 inches of flue inside the boat and added another 36 inches above deck to see if that made a difference. It didn't.
I don't have an issue with smoking, just the carboning in the bottom of the heater. The flame is above the burner ring and is the correct color nice lemon yellow with a touch of blue.
Thankis for you reply.