Home › Forums › Restaurant Professionals Forum › Professional Hot Dog Vendors › Gas pipe size? › Gas pipe size? April 15, 2010 at 2:32 pm #2584060 jayhotdogMember What size of gas pipe should be used or if I have burner 35000 BTU, Fryer 110000BTU and Grill 35,000 BTU? 1/2inch or 3/4inch? Im using a 40lb propane tank.