For people today who have one or more larger rooms that call for ceiling fans, Hunter great room ceiling fans may be the answer. What they are, is simply a larger span ceiling fan the come in a selection of sizes ranging from 54 - 60 to 70 inches.
Now 70 inches is a very large fan. It will move more air due to its larger size but not as much more as one might think. Essentially great room fans are meant for looks. Quite simply a larger fan to fit a larger room area.
This they do quite well and if you haven't yet seen a full sized great room fan in a home or business, they are quite impressive. Do understand though that there just aren't any budget models in this fan line. They start in at around $250 and go up from there.

One thing to keep in mind when you plan and visualize for your final look, is that there is more than one way to go about shopping for Hunter great room fans. You see, a “wide span” isn't necessarily the only way to effect “greatness” in a ceiling fan.
Take a look at shorter 54'' spanned ceiling fans that also have a “bigger hefty” look. Extra wide blades, more massive body and a much larger lighting globe or fixture are characteristics that you'll find in shorter spanned great room fans in the collection.

Also remember that installing a larger & heavier ceiling fan of these types is definitely not a one person job. This particularly holds true if the fan is to be installed in a room with an exceptionally high ceiling. Make sure that you have help or hire a professional to do the job for you.