Honda EX1000 Owner's Manual page 9

Fire and Burn Hazards
The exhaust system gets hot enough to ignite some materials.
-
Keep the generator at least 3 feet (1 meter) away from buildings and
other equipment during operation.
- Do not enclose the generator in any structure.
- Keep flammable materials away from the generator.
The muffler becomes very hot during operation and remains hot for a while
after stopping the engine. Be careful not to touch the muffler while it is hot.
Let the engine cool before storing the generator indoors.
Gasoline is extremely flammable and is explosive under certain
conditions. Do not smoke or allow flames or sparks where the generator
is refueled or where gasoline is stored. Refuel in a well-ventilated area
with the engine stopped.
Fuel vapors are extremely flammable and may ignite after the engine has
started. Make sure that any spilled fuel has been wiped up before starting
the generator.