One of the smallest loads on this site and one of the most anxiously searched. ResMed publishes current draw for every humidifier setting, and the humidifier turns out to be the whole story: 11 watts becomes 59.
Every page answers this with one number, and one number cannot answer it. A 10 kW standby burns 0.97 gal/h of propane at half load and 1.48 at full load, and going from half to full costs 1.5 to 1.8 times the fuel, not twice.
Three defensible answers sit behind this question and most pages pick one without saying which. The one written by the people who built the machine says 720 Wh, which this tier does not reach.
Every certified model publishes the answer, but not in watts: it is hidden in a number called CEER. All 438 certified window units pulled apart by size, plus the finding that every single one now has a variable-speed compressor.
The first page recommends a 6,000 to 8,000 W generator, and the figure carrying that recommendation costs a gas furnace as if it were an electric heater. The two loads anybody publishes come to 575 W.
The starting figure every page quotes comes from a rule of thumb. The one manufacturer that publishes locked rotor amps disagrees with it on every pump in its catalogue, and by most on the smallest.
The one appliance whose label you can trust, because a resistance heater has no power factor. What each setting costs an hour, why no space heater is more efficient than another, and why 1,500 W is close to the worst thing you can attach to a battery.
Every result on page one is a calculator, they contradict each other on the only rule that matters, and none asks your elevation. Generac settles the rule in its own manual and publishes the derating in the same table as the wattage: 3.5 per cent for every thousand feet.
The certified rating every runtime calculator uses is measured with the ice maker switched off. NIST measured one running, and at 1,000 Wh it decides whether a twelve-hour night is covered at all.
One of the few questions with an exact answer, because every freezer carries a certified annual figure. All nine certified chest freezers listed, what each costs a month, and the USDA rule that means for the first 48 hours of an outage a full one needs no power at all.
Doubling the battery doubles the runtime exactly, which is the least interesting thing about this tier. What changes is the surge rating, and whether the total covers the outage the EIA says Americans actually get.
The gas costs you nothing electrically; the blower is the whole problem. Trane publishes a full grid of watts against speed setting and duct resistance, and it spans eighteen to one, which is why every single-number answer to this question is wrong.
About 800 Wh of a 1,000 Wh station reaches an AC load: 97 hours of a router, 15 of a refrigerator, 32 minutes of a space heater. What it will run at all is decided by the inverter, and three units sold as 1000Wh ship inverters of 1,000, 1,500 and 2,000 W.
Franklin Electric publishes the input watts for every submersible motor it makes, so this figure does not have to be guessed. The published numbers, the service factor ceiling nobody quotes, and the locked rotor figure that decides whether your backup equipment works at all.
Amp-hours are not a measure of capacity. One manufacturer rates a single kilowatt-hour battery at both 19.5 Ah and 312 Ah, and both are correct.
Every chart says 800 watts running and up to 2,900 starting, and none of them says where the number came from. The manufacturers own engineering sheets publish amps and locked rotor amps instead, and the real figures are lower and more precise.
Watts decide whether an appliance starts at all; watt-hours decide how long it runs. This guide sizes a station from sixteen verified appliance articles rather than from runtime claims, and shows why a rated 1,024 Wh delivers about 580 Wh to a small AC load.
The nameplate is the one wattage figure that belongs to your actual appliance rather than to an average. Where to find it, what every symbol means, and why multiplying volts by amps is wrong for anything with a motor.
Every manufacturer blog defines the two terms. None of them price the mistake.
Every backup power decision starts with an appliance wattage chart. Before you size a generator, a battery or a portable power station, you need two numbers for each load you want to keep alive.