12 & 13 SEER Condensing Units

[hspinnler]

This is a side by side comparison of condensing units installed on new construction. The unit on the left is a 12 SEER, and the unit on the right is a newly required 13 SEER. Both are 2-ton units. Notice the size differences. According to a manufacturer's bulletin, the difference in efficiency between the 12 & 13 SEER units is 9%. As remainding stocks of 12 SEER units are depleted, we will see more of the larger and more efficient 13 SEER units.

[Mark A. Timpani, CMI]

thank you

[Larry D. Kage]

Nice info and visual Hank.

Thanks

[hspinnler]

Your welcome guys. I re-read the bulletin I received from Rheem and it said that the energy efficiency difference between a 10 SEER and 13 SEER is 30% and 8% between 12 & 13 SEER units. Here's a quick link to the data:

http://www.rheemac.com/13seer.asp

[Brian E. Kelly]

Quite an eye opener Hank.

http://www.amana-hac.com/consumer/ch...ases&sub=PRfaq

The majority of the HVAC industry is advocating 12 SEER, why are you going against the industry on this? How could the entire industry be wrong?
Studies show that raising the standard to 13 SEER, translates to a 30 percent savings over present standards on consumers' air conditioning bills and would prevent the need to build up to 138 (300 mega watt size) power plants by the year 2020. Moving to 13 SEER is the most cost-effective way to reduce harmful emissions, keep electric bills more affordable and reduce the need for new generating plants - all accomplished with existing technology in use today.

[Bruce A. King]

Some seer 13 and 14 are actually smaller than what you would think....

they can have a double coil setup.

my Bryant/Carrier 3.5 ton is smaller than my 3 ton, both are seer 14 and use R410 puron