What kind of inverters do you guys install on you boats. Does it have to be a marine type? Planing to run a coffee maker of it. Would a 1000W be enough?

I bought the West Marine Slim 1000W Marine inverter:
http://www.westmarine.com/webapp/wcs/stores/servlet/ProductDisplay?productId=99136&catalogId=10001&langId=-1&storeId=11151&storeNum=50523&subdeptNum=50529&classNum=50540#.UYbEaaIslLo
Even though it is labeled as a "Marine" inverter, the instructions still say that it should not be mounted anywhere in the presence of flamable materials or gases. So I guess mounting in the engine compartment is out. I am still deciding where to mount this inverter.

Coffee makers (and other heating devices) draw a lot of wattage. Most coffee makers have a wattage rating on them. You probably want an inverter with at least 20% extra capacity since making coffee will draw continuous power for a few minutes.

I know that most Kuerig coffee makers take 1400 or 1500 watts, so your 1000 will not be enough. They do have a model on their website called the B130 that was designed for hotel rooms, and only draws 700 watts (in order to not be too taxing on the hotels power grid). 1000W inverter would be fine for this model, but it does take twice as long to brew a cup of coffee (about 3 minutes instead of 1.5 minutes).
http://www.keurig.com/brewers/deskpro-b130-brewing-system

Why not just get a 12V coffee maker? much less expensive than the inverter.

I'd give up a lot of other things before I'd give up my Keurig.

...Never tried those Kuerig coffee makers, sounds interesting.

On the boat everything tastes better than at home.

For our H260 we had a 1000W ProMariner TruePower Marine Power Inverters in storage compartment right behind cockpit. It served just about everything we need for onboard electronics and toys
I would go for 1500W if you want use for full on coffee .... We have a small microwave oven which worked with 1000W inverter and made or warmed up a cup of soup.....but 1000W is very limited for full on kitchen equipment.