Craftsman CMXGGAS030734 7000-Watt Gasoline Portable Generator

The battery will be charged when the generator is running. If battery is fully discharged, use manual starting instructions or charge battery with a battery charger designed specifically for AGM batteries and follow all charger instructions.
There is a long bolt holding the battery in place. The battery is part number 84001084.

Just add up all the wattage of the products you need to use at once. Each standard 60w bulb will use 60 watts. If you turn on 10 lights at once, that is 600 watts. Ceiling fans use between 15-90 watts, depending on the size and speed of the fan. Let's say 450 watts for 5 large fans on high speed. A water heater has high wattage usage, typically up to 4500 watts (when it's heating water). That brings us to 5550 watts. A 7000 watt generator will have no problem running all of these at once.

One indication that the carbon monoxide is sensor is shutting down the unit is it will have the CO light illuminated. The light is a small light on the control panel of the generator. If the sensor is going off some things to help prevent CO build up, Keep the unit 5 feet away from any walls or objects, Make sure the muffler is facing the direction the wind is blowing.

The generator has 9.40 hp.

When running at full capacity, the maximum amperage the 120/240 Volt AC, 30 Amp, Locking Receptacle can consistently run at is 29.1 Amps at 240 Volts, or 30 Amps at 120 Volts.

Correct, the fuel tank on this generator is made of metal.

The engine used on this generator is model 25U135-0002-G1.

You can use any high quality detergent SAE-30, 10W-30 or a synthetic 5W-30, depending on environmental and weather conditions.