Wife and I are starting to explore a turnkey whole house generator install.

Getting too old to deal with our Troy-Bilt 5500 rollout.

House is 2100 sq ft ranch with unfinished basement walkout.

Question is regarding our dual feed HVAC setup.

It’s an auto transfer: heat pump over 35 degrees, tanked propane under 35 (500 gallon capacity tank).

Generator would be propane fed all year (when power is lost).

2007 Trane equipment.

Are any of you familiar with the potential consequences of such interfacing with a whole house?

Would likely be in the 22kw to 26kw range.

I have pending on site appointments with both Generac and Kohler.

My first contacts with both seem to be in the dark on such a dual feed setup. All they can really say to is: wait for the on-site analysis.

I don’t know anyone who has had such a setup, nor can I find anything online that relates.

Thanks for any input.

I don’t want to walk myself into trouble on a 15k to 20k investment.