On Tue, 22 Oct 2019 00:29:42 +0100, micky wrote:

In alt.home.repair, on Mon, 21 Oct 2019 21:59:03 +0100, Robert
wrote:

On 21/10/2019 20:54, Rod Speed wrote:
Commander Kinsey wrote
Why can't I find a heat pump with a good SEER rating? The USA has a
law stating 13 minimum. Yet here in the UK, I looked at Panasonic and
they're all 7 to 11!

https://en.wikipedia.org/wiki/Season...ficiency_ratio
Which suggests that the seasonal weighting parameters used in the US ,
Europe and possibly UK are all different which will give very different
figures.

So if he compared the EERs, he'd get a fair comparison between those
sold in the US and UK?

Does the US have a regulation on minimum EER?

Ah, so SEER is calculated according to likely weather locally? Doesn't that mean if I looked at the exact same model for sale in two countries, the SEER rating would be different?