When setting a tank for a construction heater or similar system, it is a good practice to use a
first stage regulator located near the tank that is set at 10 to 30 psig. It has been found that if
high pressure vapor is allowed to sit in long flexible hoses and re-condenses during cold
weather, an unusually large amount of oily residue can be carried over to the burner regulator,
orifices, and piping. A small amount of oily residue is usually not a problem. However,
large amounts of oily residue can cause problems with regulators and burners.
Use a sediment trap downstream of vapor regulators to catch oil and heavy-ends. A sediment
trap is used on some appliances as required in NFPA 54
