replying to trader_4 , mangino wrote:
trader4 wrote:

Seems kind of odd that Carrier would switch to copper from aluminum
on the theory of making some more money. If your evaporator goes
at 8 years, how many customers are going to go with another Carrier
or even an evaporator replacement? At that point, most people are
going to get a new system and it likely wouldn't be Carrier. Also
given the cost delta between copper and aluminum, I find it hard
to believe it's even true that Carrier went back to copper coils,
unless there is some other valid reason for it.


Yes there is another valid reason for the switch to aluminum (in addition
to planned obsolence) and it's called Formicary Corrosion. You can get the
FACTS by reading the industry research report containing scientific
studies and analysis going into the details of aluminum versus copper.
These are details you won't get from your air conditioning company.

Here's the link :
http://www.conditionedairsolutions.c...1-20345-25.pdf

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