alt.energy.homepower

On Aug 31, 6:44 pm, "Keith Stelter" wrote:
> I've got a 10 HP Kohler generator, and I'd like to install one of the
> Natural gas conversion kits on it so that I can run it for long periods of
> time if needed. I was wondering if anyone had any experience/advice on doing
> this?
> We just had a tornado in our town and our power was out for 4 days. The
> generator worked fine, but it was a pain in the a** having to put gas in it
> every 5 or 6 hours, and having to wait in line at the gas station with all
> the other guys wanting to fill their gas cans.
> The makers of the kits claim no drop in performance, but when you buy a
> "dual fuel" generator they list a lower wattage output when running on
> Natural gas than on gasoline.
> Thanks in advance for any replies!

Yeah - people claim many things.

I believe that the physics has something to do with NG displacing more
of the air in the fuel-air charge.

We have AARVARK kits on a couple of 8000 watt units.
The kits have been ok on propane and gasoline.
I've not had a chance to run them on NG.

Part of the answer depends on how close the engine is to max power on
gasoline.
In one of the other threads, someone mentioned that their engine had
sufficient excess capacity not to derate for NG.