Sure, totally agree with you on that for truly cold climates. My only note would be that using natural gas as a backup/emergency source for cold climates only m

Sure, totally agree with you on that for truly cold climates. My only note would be that using natural gas as a backup/emergency source for cold climates only makes sense if you have existing gas infrastructure there... and it still makes sense to upgrade to a heat pump assuming that you don't live in a climate where it's just frozen constantly (e.g., parts of Canada, Alaska, etc) Even just routing a new gas pipe to your HVAC closet can easily be $5-10k, which would erode all potential savings during the truly cold parts of the year... not to mention the additional cost of a furnace + emergency heat wiring etc.