Never connect a generator directly to the electrical system of any building without the installation of a double-pole, double-throw transfer switch as required by the National Electrical Code.

Always ground the generator's electrical system adequately to avoid electrocution.

Always operate a generator in a clean, dry, well-ventilated area to avoid electrical shock and carbon monoxide poisoning.

Never use worn, damaged, undersized, or ungrounded extension cords with a generator.

Place the generator on a low-conductivity surface such as a concrete slab before operating.

Never exceed the load capacity of a generator by attaching too many items or items with very high load ratings. This could result in a fire.

Never attempt to refuel a generator while it is running or hot.  Turn the engine off and allow it to cool before adding fuel.  Have a fire extinguisher in the immediate area certified to handle fuel fires