I searched heating help and saw a few posts you made related to this boiler. I thought it was interesting that a few years back, you seemed not to be too crazy about them but then you say positive things in more recent posts. Has experience warmed you up to them? The package is offered for $2,500 for both. I was just suspicious of a price too good to be true.
My other option is Navien NHB with indirect tank to be determined. This costs more but still less than others, but comes with 5 year full warrantee.
There may be short cycling involved in the use of either boiler with my setup, but with a price this low, I figure it may be worth it even with a short life, but not toooo short.
Thanks for any input. Sorry to write directly.