The outside panel of the water heater has always been square (with rounded edges) in my experience. Yes, a square is a rectangle, but on my current camper the longer flat rectangular outside access panel is for the furnace. So just for clarification, look for a square shaped access panel on the outside.
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2012 Aspen Trail 2710BH | 470 watts of solar on the roof | 2x6V GC batteries | 1500 watt PSW inverter | Micro Air on A/C | so far strictly boondocking
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