"RJH" wrote in message
news
On 30/01/2017 08:32, RJH wrote:
On 29/01/2017 20:42, Rod Speed wrote:
NY wrote
Rod Speed wrote
NY wrote
Maurice wrote

When the temperature is lower than this, the fridge freezer will
use more energy to maintain the right temperature.

How can it take *more* energy to run a freezer if the ambient
temperature is lower and therefore there is less heat transfer from
the room to the freezer that the compressor needs to remove.

When the refrigerant doesnt work as well at that temp.

In terms of the amount of heat that can be carried away from the
freezer chamber per unit amount of refrigerant?

Yes, most obviously if the refrigerant goes gluggy at the lower
temps and doesnt work as well as a refrigerant at the lower temps.


Mmmm. Not sure I follow. Are you saying that, for gluggy refrigerant,
the compressor will draw more power at lower temperatures? Or it needs
to run for a longer period to achieve a given amount of cooling? Or
something else?


According to Beko:

"A warmer room would be more energy efficient for the appliance as the
motor spends less time getting up to temperature then it would in a colder
room"

Sure, but not necessarily when the refrigerant isnt working properly
anymore because it can't work properly at those lower ambient temps.