I have 4 year old Water Furnace Envision geothermal unit working fine. Using an old Carrier electronic air cleaner from my old previous Carrier geothermal pump. Technician recommended replacing that cleaner with a new one, saying my old air cleaner is not big enough for new Water Furnace unit and this will cause compressor to fail more quickly. In Water Furnace manuel they are just showing screen air filters. Do I really need a $$$$
electronic air cleaner plus duct work installation to prolong life of my geothermal unit. Thanks for your help.