Although generally more expensive, dual fuel generators are becoming much more popular mainly because they are more versatile than gasoline-only models. And with the possibility of dual fuel you may not need to store as much highly inflammable gasoline. Take a look here
for some approved gasoline containers and pumps.
You'll see from the numbers that gasoline does give you more raw power. But propane/LPG is not that far behind, lasts longer, is cleaner, more environmentally friendly, and can be cheaper.
Buyers often comment that running their generators on propane eliminates problems of clogged carburetors associated with gasoline engines. Clogging occurs after the generator is stored with residual gasoline in the carburetor, and this goes stale over time. For owners not aware of the problem, it's one of the most frustrating causes of generators refusing to start when taken out of storage. One answer many owners have found is to use a fuel stabilizer
, which can prevent gasoline going bad for up to 12 months - great when you want to store the portable generator, and a practical alternative to having to drain both the tank and the carburetor.
We've got some more information on fuel stabilizers here
At the end of the day it's up to you whether you go for a dual or single fuel generator. But if you want a dual fuel model then look at our selection below of some of the best sellers on the market. They deliver a range of continuous power outputs on propane varying from 9975 watts to 1440 watts, and surge outputs of between 12350 watts and 1800 watts.