My outside unit has died after 10 years of loyal service and I have two quotes to replace the old unit with a new SEER 16 unit. One quote is to replace just the condenser and the other quote from another HVAC co includes new evaporator coils. The reasoning is that the pressure would double on the 10 year old coils and that it would likely to develop a leak in the near future. The proposed new evaporator is the exact same model etc that is currently installed. If I want to go beyond SEER 16 I would have to replace the furnace unit as well. What is the best approach? The total difference between the two quotes is $2,200. Condenser Model: Lennox 13ACD-048-230-01 Evaporator Model: CH33-48C-2F Furnace Model: G40UH(X)
I also have the exact same setup on the 3-ton unit for upstairs so I am sure I will have to replace that soon enough as well.