The Honda EU1000 is light and very easy to carry and very quiet. The output is very stable and works well with computers and electronic devices. If your boat is set up to operate on 12 volts, the smaller generator works well for powering the battery charger and a computer or two. If your on the hook, it is much quieter that the on-board generator and much more economical to run than the diesel engine to charge batteries. The output is really limited to 900 watts continuous, so you will need to be very selective on what appliances you operate. The EU2000 is heavier, but can still be carried. It can also be paralleled with another 2000. Much more usable power. Our Dealership sells 10 EU 2000's to 1 EU 1000.