Talk:European seasonal energy efficiency ratio

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Single Source

I think the "Single Source" claim is not applicable here. The ESEER is *defined* by the Eurovent consortium. Who else can we *cite* for this standard? We could add sources for other seasonal efficiency standards but that is another story. We can also look out for pages on the web explaining ESEER, but the standard itself can only be defined in one place. Isjc99 (talk) 20:48, 11 October 2011 (UTC)[reply]