FYI, there are some cons to this generator:
1. Doesn't come with a wheel kit, and the addon kit is garbage I hear, better to buy a lawn cart and bolt it on;
2. 90 day warranty, you can buy a 1-2 year addon at a reasonable price, I might see if I can get one through square trade;
3. It is from Harbor Freight, this is not a honda quality generator.
I did a search of generators, didn't see this listed. If it was, my apologies.
Here's instructions about how to convert to Natural Gas (works with Propane as well):
Here's the part used on the video:
C Kit is the version used in the video