Help to identify

[cglochau]

Could anyone please explain this to me?

[Rick Cantrell]

Looks like some sort of heat exchanger.
Maybe for heating water.

[Billy Stephens]

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Could anyone please explain this to me?
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This was part of an old Heat Recovery System that utilized the Heat given off from your Air-Conditioner to heat water for your house.

The Heat that an outside AC Unit usually puts into the air was instead used to make hot water.

This System was abandoned and a newer style split AC system was installed.

Similar to this Modern Version Free Hot Water: Sure, How? - Manufacturer Reports - Air Conditioning, Heating & Refrigeration NEWS (http://www.achrnews.com/Articles/Manufacturer_Reports/BNP_GUID_9-5-2006_A_10000000000000155536)
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[cglochau]

Then is that where the extra piping for the hot water heater is going?

[Billy Stephens]

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Then is that where the extra piping for the hot water heater is going?
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Yes.

That's Great, if you wanted to reinstall the newer version it should cut the Installation Cost.
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