Answer

Can the Champion 4500W Dual Fuel Inverter (200988) run ResMed AirSense 11, typical power from the user guide?

Runs

Runs. Running draw 56 W fits within 3,500 running watts, and published startup 73 W fits within 4,500 starting watts.

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The comparison

Champion 4500W Dual Fuel Inverter (200988)ResMed AirSense 11, typical power from the user guide
Running watts3,500 W56 W
Starting / surge watts4,500 W73 W
Typeinverter, Dual fuel (gasoline/propane)Medical
Published runtime14 hr at 1/4 load on gasoline, 21 hr on a 20-lb propane tank
SourcesGenerator sourceAppliance source

Questions

Can the Champion 4500W Dual Fuel Inverter (200988) run ResMed AirSense 11, typical power from the user guide?

Runs. Running draw 56 W fits within 3,500 running watts, and published startup 73 W fits within 4,500 starting watts.

What watts were compared?

Generator: 3,500 running W and 4,500 starting W on gasoline. Appliance: 56 W running, 73 W startup.

How long will it run?

Fuel runtime depends on total load. Published runtime: 14 hr at 1/4 load on gasoline, 21 hr on a 20-lb propane tank.

Where did the numbers come from?

Champion spec table: gasoline 4500 starting / 3500 running; propane 4500 / 3150; TT-30R, 5-20R duplex, 12V DC; 2.25 gal; 14 hr gas / 21 hr propane at 1/4 load; 61 dBA. Americas user guide, 65 W power supply section: typical power consumption 56.1 W (111.5 VA) and peak power consumption 73.2 W (137.6 VA). This is the published system figure, not the lower no-humidifier row on ResMed's separate therapy-power sheet.

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