DuroStar DS4400EHF Fortress (dual fuel generator)
 

Saw this on Ebay and read some reviews on Amazon.. 'Seems' like pretty good price.
Nice back-up power and uses gasoline or propane. Specs on the Ebay page.

I already have a gas generator for back-up, but if I needed one, I would
consider getting a dual fuel.. Since Propane can be stored for a long time..

Durostar DS4400EHF Elite Hybrid Portable Dual Fuel Propane Gas RV Generator 811640014018 | eBay


http://i.ebayimg.com/images/g/XOQAAO...u~/s-l1600.jpg