In the process of purchasing the house I've lived in for the last year. Two story home with separate upstairs/downstairs units. Downstairs unit is older and does a fair job of keeping the house cool in the summer - but not a good job. Is there a way to measurably demonstrate the system is getting old and or needs replacement?
Current owner says system was in when he purchased, so it's unknown how old it is.
Current owner says system was in when he purchased, so it's unknown how old it is.