How long will a 16k generator run on an 80 lb tank?

The runtime of a 16k generator on an 80 lb propane tank depends on the generator's fuel consumption rate and the tank's propane capacity. Generally, a 16k generator consumes around 1.5 to 2.0 gallons of propane per hour at full load. An 80 lb tank contains roughly 18.9 gallons of propane, so you can expect the generator to run for approximately 9 to 12 hours, depending on the load and efficiency.