Jayco23FB, really glad to hear the Supco SPP6E appears to be working for you. Noticed a bit of chatter online that the SPP6E (vs. SPP6) is supposedly designed for heavier-duty 220 volt applications. Not sure if there's any validity to this, but may be something to keep in mind if you have any issues with the SPP6E down the road.
ernie1, I've heard the Supco/thermal vs. Dometic/electronic comparison before, too. Found some pretty good bargains on both the SPP6 and Dometic (3310727.015), so I've decided to order and try both. Although many folks install the hard-start kits to make an attempt to power their 13,500 BTU a/c's with their smaller generators, I think they're a worthwhile investment for everyone to just reduce the day-to-day strain on the compressor and generator during normal operation.
I'm disappointed a/c manufacturers don't install these things in their OEM units as a matter of practice. Doubt it would cost more than a dollar for them to do so. Get the impression these things have the potential to reduce the LRA (inrush current) on many a/c units up to 50%--that's huge. It may not be much of an issue when powering a/c units with commercial power, but it's certainly a huge deal when using generator power.
