If you want to bbq then it's got to be charcoal (pref lump wood), wood or at a push briquettes. Everything else is grilling, not bbqing in my book.
Having got that out, many sites here and places in the sticks you're not allowed open fires in summer due to the fire risk. So we use a Cadac plugged into an external gas point most of the time, but with my added lava rock 'hack' which gives a better taste due to the fat burning off and makes cleaning a doddle. Still using the same lava rocks 4 years later - I just tip them out the last night before we move onto the earth then next morning when they're cold pop them into screw top container. See https://www.motorhomefun.co.uk/forum/threads/cadac-lava-rocks.206724/ ffi.
Having got that out, many sites here and places in the sticks you're not allowed open fires in summer due to the fire risk. So we use a Cadac plugged into an external gas point most of the time, but with my added lava rock 'hack' which gives a better taste due to the fat burning off and makes cleaning a doddle. Still using the same lava rocks 4 years later - I just tip them out the last night before we move onto the earth then next morning when they're cold pop them into screw top container. See https://www.motorhomefun.co.uk/forum/threads/cadac-lava-rocks.206724/ ffi.