I too am trying to decide between a dual fuel system or heat pump only in the Shenandoah Valley of VA.
I've read tons of posts here referencing this subject and still can't decide.
Electric rates are low here in VA. Avg high temps in Dec, Jan, and Feb are around 40 degrees or so. Avg low around 20.
This system is for a new home I have under construction. The home is 2700 feet on the ground floor with 1600 feet finished in the basement. This is a brick home and will be well insulated.
Propane is the gas source available at the new home.
Any help is appreciated. I'll be happy to supply additional info if needed and available?