We have a diesel heater mounted in the same aft of the starboard locker (behind the removable panel) location. Works great.
Only issues to watch out for are the location of the very hot exhaust in relation to dingy tow lines and bumpers, and the proximity of the heater to the showier lines, as contact can quickly melt a hole in the line (as I learned).
Love the heater. Can’t imagine life without it!
s/v Battuta (B31, 2009)