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Thank you! How odd. Federal standards for SEER numbers for residential installs, but local jurisdiction for commercial? And, do commercial jobs ever use SEER? Or just EER? 'Tis a mysterious...

Are there any minimum EER numbers required for commercial installs? And, what are some of the highest EER number units on the market these days. I'm mostly familiar with SEER numbers on smaller...

So... I understand about the SEER requirements. As of January 2006, minimum SEER had to be 13. My question is this: for commercial installations, is there any EER minimum rating required? And am...