For the Predator 11500 tri-fuel inverter generator, SKU 72614, Harbor Freight lists different continuous ratings for gasoline, propane, and natural gas. Match your load plan to the fuel you will actually use instead of treating the largest number in the name as continuous output.
Fuel-specific ratings
| Fuel | Published starting watts | Published running watts |
|---|---|---|
| Gasoline | 11,500 | 9,000 |
| Propane | 11,500 | 8,100 |
| Natural gas | 11,500 | 7,200 |
These are the manufacturer listing’s figures for this SKU, not measurements from our own test. Source: official Harbor Freight product page.
How the difference affects planning
For an illustrative combination requiring 7,500 running watts, the sum is below the listed gasoline and propane running ratings but above the listed natural-gas running rating. That comparison addresses only continuous wattage; it does not establish startup capability, outlet suitability, or complete compatibility. The example load is hypothetical.
Check individual connections too
Request a review of the specific outlets and the connection equipment you intend to use. A generator-wide rating does not independently establish what your particular cord or inlet can carry. Keep the electrician’s specification with the generator manual and appliance list.
Separate runtime from output
The product highlights advertise up to 14 hours at 25% load. Do not assume that this means 14 hours at full continuous output or applies unchanged to every fuel arrangement. Ask for the exact runtime conditions and fuel setup relevant to your plan. Keep quoted runtime, load percentage, and fuel information in separate columns.
Build your fuel plan before buying
- Confirm SKU 72614 and the matching manual.
- Choose the intended approved fuel arrangement.
- Review running demand against that fuel’s rating.
- Obtain starting information for motor-driven appliances.
- Have cords, outlets, or household connection equipment checked.
- Plan fuel supply and another option for an extended outage.
Questions to resolve
Does “11500” mean continuous power?
No. The listing uses 11,500 as a starting rating; continuous ratings are shown separately above.
Can I transfer a gasoline load plan directly to natural gas?
Reassess it against the listed 7,200 running-watt figure and the manual’s requirements before relying on it.
For another Predator model’s runtime interpretation, see our Predator 2500 runtime guide.