Hi TIn,
I have the Yamaha 3000 sIEB. It struggled in Cranbrook, BC Elevation, 921 m (3,021 ft) to start a 13500 btu ducted Dometic. Granted the genny had less than 20 hours on it. It purportedly does a 500 boost over the 2800 VA.
Since I got the hybrid inverter ($1700.00 including the remote from Imarine), I can run the generator in eco mode and start the air conditioner easily. Although I have not tried it, my opinion is that with the hybrid inverter a single 2k inverter genny would be enough to run a 13500 btu air unit, using the load support feature of the inverter.
The hybrid inverter is useful in a host of other ways--for example I can "dial it down" to the maximum 23 amps that the Yamaha can provide, or I can limit it to 15 amps if I'm on a standard wall outlet at some one's home. No more worries about blowing a breaker and knocking on their door for a "reset".
One of my pet peeves is that the genny makers advertise VA instead of real honest to goodness watts. The inverter folks are in the same (leaky) boat.
TInmania wrote:
What I would like is to have that built into the inverter generator. Yamaha makes (or made) one and I believe it just uses the internal starting battery that gets coupled to the inverter to increase amperage for about 10 seconds. They only did it on a 3000 watt model but I wouldn't mind having it on something a little lighter.
I'd even be happy with a couple of terminals to attach my own battery.
The hybrid inverters I have seen for RVs are nice but more than I need and cost as much as another 2kw inverter generator.
Mike