I don’t know of a simple calculator to compile inputs and outputs. You’d probably be best off making your own excel spreadsheet.
Use EPDs to calculate the embodied carbon of the equipment and distribution
Use yearly energy usage to calculate the operational carbon of the system per your egrid source emissions.
I’d look at maybe a 20 year life cycle?
Having on-site renewable probably tips the scale the most for an electrified system.
Also, if you are in a warm climate, you get the added benefit of “free cooling” from the heat pump if it is located within your thermal boundary.