On Mon, 21 Oct 2019 20:50:32 +0100, A noiseless patient Spider wrote:

On 10/21/2019 3:20 PM, 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!


It's because we use 120/240 volt 60 Hz two-phase. Your single-phase 50 Hz is less efficient.

https://www.energystar.gov/products/...rce_heat_pumps

I don't believe you. There is no way they can be twice as efficient with a different input voltage or frequency.