FIRMAN® Dual Fuel Open Frame Inverter 4400W Electric Start with CO Alert #WH03562OFModel #WH03562OF The FIRMAN WH03562OF is fuel efficient and provides clean, renewable power for electronics and sensitive equipment. The WH03562OF is the perfect option for when you need clean power and a higher run time on both gasoline and propane. It has a 6 gallon tank capacity with a runtime of up to 22 hours at 25% load. The WH03562OF is ideal for street performers, musicians, campers, food trucks or those who need a backup power station for