Thank you all for your advice and suggestions!!
It has been a busy couple of days dealing with everything and I appreciate the response.
I have concluded that yes this machine is not what I need for I have a mixture of appliances that need the 240. And yes I’ll be running it for several weeks during hurricane season.. At any rate buying this machine and getting it up and running has been a huge learning experience and thanks to you all it does purrr like a kitten!! I already have people wanting it so I’ll probably be shopping for something compatible with my house and shop
Thanks again see ya next project
I just saw this. I'm also looking at a buying local 805a, mainly bc it's local.
You Can use 208 for a house but you need a buck-boost transformer. As a PE, I think I've done this sizing calc about 1000 times. The buck boost trans is relatively small by comparison to the load bc you only need to pass ~14% of the voltage thru the boost up to 240.
As far as #of legs,
@DieselAddict is correct, you're only using 2/3 of the gen, so 20kw is avail at 208 single phase. These 805's are a wye config as shown, and with only 2 legs used, it's the same as your service transformer with a center neutral.
some motor-based loads in a house will Eventually trip breakers when ran on 208, well pumps especially, pool pumps etc. Resistor loads (range) will simply be less powerful and draw less amps. 120v loads (fridge, Mwave, toaster, coffee), will run exactly the same since they're still 120. AC compressors need to have the dual voltage rating as said above or they may trip breakers.