I Have it plumbed through removable 1"3/4 pointing down in the engine compartment for now, like I mentioned earlier it is only temporary. At one time I had mind to build a box for it, but it would only be a waste of materials for a gas jobby, besides the last thing I wanted was gas in an enclosed area. Let me say that mine is not the ideal way to go if you have a budget that allows the purchase of a suitable diesel or propane genny that would be the route I would take, me I am just getting by with mine till it's time belly up to the bar
best of luck.
Edit. just for the record, so long as you are mindful of the equipment's limitations and how much you ask it to do it should work fine. when we go on a trip it is basically pole to pole for elec, I power up what I need in the bus while working on it during the day.