just ordered my l5 unit need to no a couple of things the people that have these how much gas do you use i will be useing around 400ltr a day just got a 15kg gas bottle hope that size is right and what are they like to use is it a lot of fiddling around to get right each day iv been water fed for the last 5 or 6 years and all i seem to be doing is spending like all on here hope iv gone the right way forward regards carl