Does anyone have a suggestion for an appropriate water heater for the E29? Ideally, I'd like a 10gal or 11gal heater, but space limitations the port locker (really the only place to install the heater on this boat) limit me to a 6 gal. I spoke to a techie at Force 10, and he suggested running 2 6gal heaters in line. Also, this unit is just slightly larger than the opening, which means I would have to cut away about an inch of the opening to allow it to fit. Seems like a pain. Any ideas or suggestions?