Hi, new to campers, had ours a little over a year. But I have plumbed two house with propane, one with a 500 gal and one with 1000 gal. Each tank required a regulator on the tank (don't know W.C.), then each structure that gas was piped to had a regulator attached to the outside that had a W.C. of 11". The local gas co. said if I hook directly to the camper it would physically blow the camper regulator up, as in disintegrate it!!!! Check with the supplier, tell them your intensions. I've seen it done last winter, but never exactly checked out what they did. Good Luck, Be Careful. Dan