Generator for Air Conditioner

Tony,

That was what I thought but found out that whilst that applies to kw/hp out put for an engine, aircons are different.

They rate kw/hp as cooling power which is way above the power required to run it. Eg a Heron 2.2 kw caravan aircon actually only draws about 1200 watts and we were able to run it happily from a Kipor 2000 (which delivers a constant 1600 watts).

Cheers,

Jim.

Quite right Jim, but it is even harder than that sometimes.
The best place to start is to look at the rating plate on the appliance for the AMPS draw. (Amps x 240V = watts).
Then you need to allow for start-up which can be double, or more. That is difficult to estimate as it depends on the motor trype and how it is controlled.
A lot of cheap 240V air compressors (for example) claim to be 2.5HP, but aren't really. They might draw 2.5 x 750W, but their motor output is much less than 2.5HP. That is INPUT, not OUTPUT. Bit of a con, really.

Cheers,
Peter
OKA196 Motorhome