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Long ago, the industry determined that the combination of copper tubing and aluminum fins provided the most efficient transfer of thermal heat in condenser coils. Manufacturers of residential units are not necessarily on that same page - or that line of thinking - today. Most manufacturers, if not all, are revising, have revised, or continue to revise their outdoor coil construction. One of the main objectives, of course, is to increase heat transfer efficiency, as energy efficiency is high on every homeowner's wish list. In the end, each manufacturer believes it has engineered and/or perfected - at least up to now - the most-efficient coil design. Some, like Goodman Manufacturing, have made changes as a direct result of the efficiency offered from R-410A refrigerant.

CO2 solutions\nWhat suppliers say will help \nreduce CO2 emissions\n* Fuel injection systems for diesel and gasoline \nengines\n* Exhaust after-treatment systems\n* Turbochargers\n* \nReduced-diameter electrical cables; alternative metals, such as aluminum instead \nof copper, in cables\n* Electric steering\n* Hybrid powertrains\n* Vehicle \nenergy management components, such as power electronics and energy storage \nunits

PORT-OF-SPAIN, Trinidad (AP) - China will help build a $400 million aluminum smelter in Trinidad's southern region, according to the leader of the Caribbean island.

Heightened concerns that China's devastating earthquake will curtail the country's massive metals output helped aluminum, zinc and other base metals extend a two-day rally Friday.

The merger would involve OAO Norilsk Nickel (GMKN.RS) with iron-ore and steel group Metalloinvest and United Company Rusal, bauxite miner and the world's largest primary aluminum producer.

According to Tom Albanese, CEO of Rio Tinto, metal stocks will see a boost in the second half of 2009. "We're beginning to see some of the infrastructure-driven stimulus plan in China and in the U.S. playing into steel, aluminum, copper demand and other materials that [Rio Tinto [RTP 134.06 1.06 (+0.8%) ]] would produce," Albanese told CNBC.

Suriname Aluminum Company LLC (Suralco) today announced that production at the Paranam, Suriname alumina refinery was being curtailed by approximately 40% or 870,000 metric tons per year (mtpy). The refinery, which has a production capacity of 2.2 million mtpy, is owned jointly with N.V. BHP Billiton Maatschappij Suriname (BMS). Suralco has an entitlement to 55% of the alumina produced at this facility or approximately 1.2 million mtpy.

"What's happening in the electricity market in China is a big driver because aluminum is getting substituted for copper in certain scenarios"

"Cheaper than copper even though aluminium conductors are bigger in diameter. Lighter, even though bigger in diameter. More resistant to corrosive effects of weather than copper."

""We are targeting 48,000 at full capacity for cables and 30,000 at full capacity for aluminum. We also aim at over 50bn capacity in the next 24 months. Our expectation is not only in Nigeria but across Africa. "

"Airbus selects Nexans as main cable supplier for the next 5 years The new global supply contract, which builds on Nexans' existing 20-year partnership with Airbus, covers the supply of the hook-up, power, data and fire resistant cables that represent some 95 percent of the total cable requirement on an aircraft. The exact amount of cables on each aircraft varies according to its specification, from 200 km to 600 km depending on the aircraft model. Weight saving is a major priority for Airbus and a crucial element in winning this contract was Nexans' innovative approach to lighter weight cable designs with no compromise on safety, performance or reliability." The A380 jet uses aluminum wire and cable.