Jeff, When we purchased a 12K unit for a client, the distributor conveniently waited until after the purchase to mention the fact that Kohler wouldn't warranty off-grid usage, and to instruct our customer to not ever mention anything other than it was used for grid-connected standby. To pacify the perfectly crafted words I had for him, he mentioned that Kohler had an off grid unit coming available in the next couple of months addressing all of the fore-mentioned concerns. This was about 2 years ago, and I now see where he intended his smoke to go. I have never heard of such a unit again.
When that same client needed another generator we shopped around and found Cummins-Onan to be great to deal with. Simple start up procedure, quieter than that Kohler 12K, 2-wire start, and their price for a 30K generator was 800.00 cheaper than my Kohler distributor could give to me even though it was our first purchase with them. Thus far I have been pleased with Onan. To answer your question, we have never been contacted by Kohler. Jay Pozner Nunatak Alternative Energy Solutions
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