When I lived in Japan back in the '60s (I was a navy diver stationed at
MCAS Iwakuni), many houses didn't have hot water heaters and it was
common to have a small "on demand" propane fired water heating unit that
attached just above the kitchen sink.  They were small and worked very
well.

Do you suppose one of these is still available and if it would lend
itself to Westy use?

Mike
'84 GL 7 pass
'85 GL Westy