Cold-weather ships sometimes made room for hot-water comforts

Would hot-water bathing facilities have improved morale on Arctic convoys?

Yes, and a few cold-weather vessels apparently had comparable facilities, although they were rare; the much larger Typhoon submarines later carried a small sauna.

Some Swedish and Norwegian vessels adapted for cold climates reportedly carried hot-water arrangements that could help crew morale. Such amenities were unusual rather than normal features of Arctic-convoy ships. A later exchange points to the Typhoon-class ballistic-missile submarines, whose exceptional size allowed a small sauna and other crew comforts. The comparison shows how operating environment, available volume, and a ship's prestige can shape habitability as well as combat systems.