Best A/C option for Sotuh FL?
We live in a 2 bedroom townhouse in Ft Lauderdale, 2-story, 1200 sq/ft total under air.
The outside and inside unit was replaced in 2000 with a Rheem 2.5 Ton 10 SEER.
Since one of us is usually here, we keep the temp around 72-74 when home. Anything lower than 71 the A/C will not turn off, and higher than 75 it hardly ever turns on and the house is too warm.
Our electric bill use to be around $100-$120 in Dec-March, and up to $250 in the summer. But for the last 2 years it has been running us $290-350 each month.
We had a local Lennox dealer over last week for them to do a system check (free tune-up) and also give us prices on their system. The service tech said there was several problems with our system: the outside unit is pulling 50 Amps, when it should be at 40, and the pressure is to high at 375 PSI, the inside unit only has a 14 degree temp difference between the air in and out, when it should be 20 degree difference or more.
These were the three systems the sales man put together:
Option 1: $3676
Outside Unit: 13ACX030 (15 SEER Effective)
Inside Unit: CBX27UH030 (2.5 TON)
Option 2: $3912
Outside Unit:14ACX030 (16 SEER Effective)
Inside Unit: CBX27UH036 (3 TON)
Option 3: $4028
Outside Unit: 14ACX030 (14.5 SEER Effective)
Inside Unit: CBX25UHV030 Variable Speed Motor (2.5 TON)
Out of them, Option 1 is the least amount.
Option 2 he said is the most energy efficient, since its 16 SEER.
But Option 3 has Variable Speed Motor for the inside unit.
Between them, not sure which is the best option. All of them use the Merit line for the outside unit, but #1 and #2 an Elite for the inside, but #3 uses the new variable speed, but it a Merit. I not sure if variable speed makes much of a difference.
But I've read in here that Lennox isn't as good as they use to be, and most people prefer Trane or Carrier. Between those, what do you guys think would be a good solution for us? We wanted to keep the cost under $3500, but I guess a good system is going to run us over $4? I'd like to get some feedback before I have other estimates done for Trane and Carrier.