Monthly Archives: March 2015

Coca Cola to narrowly miss HFC-free global refrigeration target

The Soft drinks giant will miss its target, set in 2009 for including natural refrigerants in all new equipment globally by 4 per cent,

Coca Cola will narrowly fail to reach its ambitious target of only using natural refrigerants – primarily carbon dioxide, but also hydrocarbons – in all its new vending machines globally by 2015. The manufacturer’s sustainable refrigeration manager Antoine Azar told the audience at the Atmosphere conference in Brussels that there remained a 4 per cent ‘technology gap’ in the smallest vending machine sizes.

The drinks giant now has 1.4 million HFC-free vending machines, a 20 per cent rise over the previous year, Mr Azar said, with 78 per cent of models performing more efficiently than HFC units,

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New Efficiency Standards for Hot Water Heaters

The National Association of Home Builders has condensed the DOE page on the new Efficiency Standards for Hot Water Heaters. The good news is if you buy the unit, you can install it, until existing stocks are used up. There are also some alternatives in specifying and installation you can consider.

Elec DHWNew residential water heater energy-efficiency standards that go into effect April 16 will require changes to the installation of many residential water heaters. Most water heaters with a capacity of 55 gallons or less will require more installation space, and those larger than 55 gallons in capacity will see additional, more significant changes. However, products manufactured before April 16 can still be bought and installed after the changeover date.

These new efficiency standards will require much higher Energy Factor (EF) ratings for larger water heaters, making a huge impact, especially on how these types of water heaters are manufactured, distributed, installed and/or vented.

PV DHWThe more common-sized water heaters of 55 gallons or less will likely be larger by roughly 2 inches in height and diameter to account for the additional insulation needed to meet the new standard. This may require builders to account for the increased size in their design.

It is expected that replacement water heaters installed in closets will present the biggest problems: They may require installing an applicance with reduced water capacity, selecting a much taller tank of the same diameter or a switching to a tankless water heater if space does not allow for a simple change-out.

As more information is available from manufacturers and the federal Department of Energy, NAHB will update this page.  Continue Reading