Please comment on these 2 proposals that I have received to retrofit CAC in my old house. I received 4 estimates in all and have already rejected 2 of them. This is for a 1300 sq ft, 2 story house in NJ. Insulation is good and windows are new double-paned. But the house gets no shade and the family room where we spend all of our time gets very warm as it faces west, has a lot of glass area and has a black rolled roof.
Estimate 1 – conventional system
Amana 3 ton ASX140361A condenser with a MBE1200 variable speed blower/coil unit mounted in the attic. Includes a Honeywell thermostat. 15 SEER rated. System is eligible for utility rebates.
Estimate 2 – high velocity system
Unico 3 ton system with Trane 4TTR3036 (I think it is an XR-13) and Unico blower/coil MC3642 mounted in the attic. Includes White Rodgers thermostat. I don’t know the SEER rating.
I’m having a hard time deciding between the 2 systems. I understand that one of the benefits of the high velocity is even cooling in all rooms. Most of the rooms in my house have ceiling fans which run from spring to fall. Surprisingly the installer of the conventional system can use all closets for his ductwork runs, the high velocity system installer has told me that he will need to cut through some walls to run the ductwork. I have been in my house for 15 years and plan to be here another 15. There is a $ difference in the price, but my decision will be more on comfort level than price.