I put in a request for quotes on a few local HVAC websites last fall and got a call from a WaterFurnace rep. He said he couldn't tell me for sure without an on site visit but looking at satellite images and talking about the size of our house he gave a rough ballpark of $50k. We have solar panels and he told me we would need to expect a bigger electric draw over the winter when we are currently building up a buffer that helps offset our summer cooling. That all makes sense to me. I am still interested but that price point means I will need to take more time considering my options.