No personal experience here but here's a helpful reference from someone who wrote a blog about different aspects of a 2 flat remodel in Chicago Scroll to "Two-flat journal 6: How to make an all-electric house" - - speaks a little about heat pumps and cost In the HVAC section.  

I have a SDIRA rental home that needs a bathroom remodel, can I get a line of credit or a loan for this SDIRA LLC? 

While I haven't done a traditional flip, I have done some heavy remodeling at each of my properties and have some unique ways to find potential on market deals. 

If you ever plan to remodel real estate it's invaluable.

I finished the attic, basement and remodeled interior and exterior What was the outcome?

We rent single family homes above median rents, fully remodeled and we don't use carpet on the main floor at all. 

I'll tell you about some of my cosmetic remodels and we can maybe benefit each other!

It has been just fine and we have been upgrading it and remodeling.

I own a successful construction company that mainly focuses on kitchens, bathrooms and interior remodels and have been in business for over 4 years.

I have seen properties convert the radiant heat system to electric board heating style during remodels.