With space at a premium on most boats and caravans, this washing machine from Candy would be worth a look at
The Candy Aquamatic 4kg washing machine is a perfect solution for those with limited living space, power and water. Its maximum power consumption is 1600W and the average water used per wash is approximately 30 litres, making it ideal for boat and caravan owners who have always wanted the convenience of a traditional front loading, fully automatic washing machine while on the move. It has 3 quick-wash cycles, lasting 14 minutes, 30 minutes or 59 minutes. It also has an LED display with a countdown timer which shows the time remaining on the current wash cycle. It will run on a 2000W pure sine inverter or an equivalent inverter-generator.