torpedo kerosene heater raw fuel

[genso]

I have a brand new Dyna Glo 50,000 btu torpedo heater that burns good and puts out good heat but I just noticed today that a very small amount of raw fuel was present on the front . it wasn't dripping off or burning but it is there. is this a fuel pressure problem? any one else had this happen?

 

[ForceFed70]

Are you sure it's raw fuel and not exhaust vapor condensate(water)? What happens when you put a lighter to it?

Many people don't realize just how much water vapor ventless heaters produce. General rule of thumb is that for every 2 gallons of fuel burnt 3 gallons of water vapor is released.

 

[genso]

Thanks for the reply Force, I am using off road diesel which manual says is ok and it is dyed red so as not to mix it up with regular diesel and the residue I am seeing is red. any suggestions?

 

[ctfjr]

One common problem with oil burners is the 'shut off valve' in the fuel pump doesn't snap closed as the unit shuts down. As the motor & pump slow down on shutoff the pump's oil pressure will slowly drop & the oil won't be atomized. If the blast tube is lower on one end oil will slowly accumulate from dripping there.