I am planning to install an on-demand propane hot water heater. I need to run a 2" flexible SS exhaust tube out the transom. I haven't had much luck finding a thru-hull fitting that can accommodate the reverse transom. Buck Algonquin's and others I've looked at don't have near enough angle.

If necessary I can have a machine shop make a fitting (maybe Brackett Machine as Maine Sail once suggested). Or perhaps I'll simply run a pipe straight out thru a backing wedge on the inside.

If anyone has dealt with this issue before I'd be interested.

Thanks,
Max