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mlraff53

Need advice...new A/C tonage?

mlraff53
10 years ago

Hello all,
I have a 2400sqft 2 story house. I replaced the furnace two years ago with a 4 ton blower.
Now I have to replace the a/c unit and the evaporator coils. I currently have a 4 ton 12 seer unit but I guarantee you it's not working at full capacity. It is about 13 years old and I live in TEXAS. No a/c is big enough here. The current one runs all day long.
So I had two quotes. One offers me a 4 ton unit to match the blower and the other says I can handle a 5 ton unit since I'm replacing the coils.
Who is correct?
Should I change the ductwork (25 years old) to make the 5 ton more efficient?

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