Do not use Propane on Natural gas equipment

[jhagarty (Joseph Hagarty, CMI)]

@rwand1

Don’t think so.

Almost three times more pressure is used to deliver propane to a burner than is needed by natural gas (methane). Propane is generally set for 10" Water column (W.C.) manifold pressure or pressure after the gas valve versus natural gas which is generally only set for 3.5" w.c. manifold pressure.

LP is delivered at a higher pressure as it is a Liquid fuel as opposed to Natural Gas which is delivered in a gaseous state.

At a Higher Pressure, is more or less LP consumed at the Appliance opposed to Natural Gas to maintain the same temperatures?