The 2′ x 4′ Gas fired burner system will consume about 9 lbs of LP per hour at a moderate rate of fire. At this rate the pan will be evaporating around 10–12 gallons per hour. This is a very efficient way to boil sap with gas!
Natural Gas Conversion
2 PSI is required if you opt for the natural gas version of this burner. Your home will have a 2 PSI service to the meter outside, but is likely reduced to 1/4 PSI before entering the house. Many people have converted the service at their home in order to run our 2 PSI system. This conversion is done by your gas supplier for no cost. However, after the service is upgraded to 2 PSI, it will be your responsibility to put a local 1/4 PSI regulator before each of the appliances in your home (water heater, furnace, etc.) This might cost anywhere between $200 and $500 depending on if you hire this work out or do it yourself.