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I'm a big fan of modern inverter heat pumps. Uses just enough juice, not on/off, and most have low ambient functionality. You pay for the features though. I have a similar setup as you but my aux heat is oil. I rarely use oil though, only true emergency. I supplement with a wood stove and a mini split. The center system fan keeps the house temp pretty even.
I would only use electric heat if you seal the building well and insulate very well. Operating cost/btu is high, even if you have low electric rates. If/when I have to replace my primary system its going to be a inverter type.
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