They aren’t a drop in replacement. Heat pumps need large ducts or you won’t have enough flow because the air in the ducts is not that much hotter than outside air. Delta t is low
How would you ensure that spares are available in the event a model is discontinued or the company shuts down? It’s likely there will be few parts or trained techs in that case.
They don’t itemize that out but the existing electrical line has to be retrofitted to current code and some duct work needs modified to fit a new unit. Nothing crazy though, going from one heat pump to a new one. A drop in replacement was 4k unit and 8k costs so 6k listed here seems super low
Your install costs are super low. Is there some sort of innovation that would drastically reduce install costs? We just got quoted for a conventional heat pump install in Seattle 2/3 of the cost is installation. The unit costs like 6-8k but to get an installer to install its 18-22k. That’s with 5 quotes so I don’t think it’s abnormal. How do you plan to keep install costs so low at 6k