ResMed DC 12v and 24v S9 Model Converter

Q : Can I use it in a truck which has 24v then take it & use it in a12v camper?

The ResMed S9 converter will work off either a 12 volt or 24 volt source. So an S9 Elite or AutoSet with converter will work in all your scenarios.

Best options are:
1. the ResMed 12 volt converter, which allows you to use a cigarette lighter plug, or direct to the battery terminals
2. a modified sine wave inverter which allows you to use the S9 or other appliances

Approx 1amp for the machine, about 5amp with the humidifier attached and turned on.

Yes, just ensure that the plug configurations are compatible. What power outlet does the houseboat have? The converter has a direct battery connection through alligator clips, or a tube plug (cigarette lighter type)

Use 1 amp without humidifier/humidifier at 0 : 7 hours = 7 amp/hours Use 5 amp with humidifier turned on. : 7 hours = 35 amp/hours

About 2 metres

Yes

The non heated tubing plugs into the right hand side of the machine when the humidifier is not in use.

Yes, the code is 37297

Approximately 1 amp for both, providing the inverter is 90 % efficient.

You need a 12 volt converter to run this machine from the cigarette point or battery (via alligator clips).

Yes, you need to purchase part # 37343