On 10/22/2019 1:47 PM, The Natural Philosopher wrote:
On 22/10/2019 18:14, The Other Mike wrote:
On Mon, 21 Oct 2019 15:50:32 -0400, 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.Â* Your single-phase 50 Hz is less efficient.

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

60Hz vs 50Hz?

For several manufacturers they all come off the the same production
line, using the same refrigerant, most now use a multiphase inverter
driven compressor.

The result is there is essentially bugger all difference in thermal
performance and certainly none related to the mains input voltage and
frequency.

No one with a monniker likeÂ* "A noiseless patient Spider" van possibly have an IQ over 50


And the IQ requirement to type accurately?