Aluminum vs Copper Coils

izagdlifeAugust 22, 2008

Hi,

I have to replace my existing 13 year old air conditioner. We have two 2.5 ton units. I'm reparing the downstairs unit and replacing the upstairs unit. (The downstairs is on a home warranty but not the upstairs.)

I'm getting different quotes. One company recommended another 2.5 ton Trane unit while a second company said I needed 3 ton units (1800 sq ft area) and trashed current Trane units because they use aluminum instead of copper coils. He said copper works much better at sucking the heat out of the air.

Help!! There is a huge price difference (double) and I dont' know what is important and the most sensible trade-offs.

Many Thanks,

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zl700

First I would throw out the quote from the salesperson that trashed another manufacturer. Ho obviously as a person lacks respect, integrity and other personal traits.
The sales person that I admire most is ones that promote and highlight their own products, not degrade others. The fact that he attempts to put doubt in your mind about aluminum coils leads me to believe he is defensive and knows or at least thinks they are better.
A HVAC company should be selling their own benefits company first, application second and name brand products last.

Trane/American Standard has been using aluminum on their outdoor units for years, and introduced the indoor aluminum coils about 3 years ago. To my knowledge, they are the only ones with 10-year free factory parts on their coils.

From TraneƂs site:

"With a strong heritage in aluminum outdoor coils, Trane has applied our innovative thinking to develop the industry's only all-aluminum indoor coil. Rust resistant and almost corrosion-free, our all-aluminum coils set a new industry standard by preventing leaks that often occur from corrosives like salt or common household cleaning products."

    Bookmark   August 22, 2008 at 12:42PM
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frog_hopper

Copper prices are three times that of aluminum. That may be a factor. Then again, maybe not. Below is a thread on the subject with HVAC pros doing most of the talking.

Here is a link that might be useful: Aluminum Versus Copper Thread

    Bookmark   August 22, 2008 at 1:46PM
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