
Gordon Reyes, Fuel & runtime writer
I'm the fuel person on the team. Ask me how long a generator runs and I'll ask right back: on which fuel, at what load, with how big a tank? Listings love a runtime figure at 25 percent load. A real outage, with a fridge, a sump pump and a few lights, rarely sits that low.
So I go to the runtime tables in the owner's manual and the spec sheet and line them up model by model. Propane changes the picture: running watts drop, a 20 lb cylinder empties faster than most people expect, and cold weather doesn't help. I read owner reviews with that in mind and keep what people say about fuel and starting apart from everything else.
Maintenance is the other half of my beat. The break-in oil change, the spark plug interval, what the manual says about storing the unit with fuel in it, and whether the warranty asks you to keep records. Dull pages, expensive to skip. Noise ratings get the same treatment: a decibel figure means little without the distance and load behind it.
I write the guides on dual fuel versus gasoline, maintenance, quiet inverter generators and continuous runtime. I also edit Rebecca's guides on sizing, running a whole house and the outage plan.
Areas of expertise
- Gasoline, propane and dual fuel
- Runtime per tank at real loads
- Break-in, oil changes and maintenance intervals
- Noise ratings and the distance behind them
How I work
- Runtime claims are read together with the load they are stated for; a figure without one stays out of my notes.
- Propane and gasoline figures are kept apart for every dual fuel model, because the running watts differ.
- I read the maintenance and storage pages of the manual in full, including what the warranty expects from you.
- Noise ratings only count when the listing or the manual says at what distance and load they apply.
Articles by Gordon Reyes
Written
Buying GuidesDual Fuel vs Gasoline-Only Generators: Is Dual Fuel Worth It?
Is a dual fuel generator worth it? How it works, what propane costs you in watts, why it stores better than gasoline, and when gas-only still wins.
Read the guide
OwnershipGenerator Maintenance Schedule: Keep a Portable Generator Starting
Generator maintenance made simple: oil before every use, a monthly run under load, battery care, fuel rotation and a pre-season check, per your manual.
Read the guide
Buying GuidesQuiet Inverter Generators: What Buys the Silence
Why inverter generators run quieter, how to read dB(A) claims in listings, and what dual fuel adds, with the quietest models we rate ranked.
Read the guide
OwnershipHow Long Can a Generator Run Continuously?
How long can a portable generator run continuously? Runtime per tank, load, refueling and oil intervals, from Generac, Honda and DuroMax owner's manuals.
Read the guideEdited
Buying GuidesSizing a Portable Generator for Home Backup, Load by Load
Add up the running watts of the circuits you actually need, find your largest motor-start delta, and size a portable generator with honest margin.
Read the guide
PreparednessBuild a Home Outage Power Plan Around a Portable Generator
Turn a portable generator into a working outage plan: load list, fuel stock, placement, cords, rehearsal and household roles, step by step.
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Buying GuidesWhat Size Generator Do You Need to Run a House?
What size generator runs a house? Add running watts, add the largest starting surge, then choose essentials or whole-house. Generac and owner’s.
Read the guideHow we compare and rate the generators is explained on How we rate. The rest of the team: Our editors.