Do any of you know of a good forum or site to study gas volumes and pressures. I am trying to get a better handle on water column, pressure, volumes and capacity. As it stands now I really don't have a good mental picture of how much the average residential meter puts out. For example running an 11k generator. I think the gas company man need to replace the meter/ regulator. In addition Lp is different from NG so with NG I need even more gas.