Every other make we work on lives in a kitchen. Here the grill, the island around it, the hood over it and the refrigerator under the counter are all on a terrace, a dock or a roof deck — and the weather is not background, it is the service history. Ignition components craze, fixings seize, condensers load with salt, and a machine four blocks from the water ages differently from the same machine four miles inland.
It also changes the diagnosis itself, because outdoors there is no display and no code. What the flame looks like and what changed last week is the evidence.