On Tue, 01 Jan 2019 16:48:46 -0000, "Commander Kinsey"
wrote:

On Tue, 01 Jan 2019 15:27:17 -0000, trader_4 wrote:

On Tuesday, January 1, 2019 at 10:14:26 AM UTC-5, Commander Kinsey wrote:
On Tue, 01 Jan 2019 13:12:21 -0000, Mr Pounder Esquire wrote:

harry wrote:
On Monday, 31 December 2018 21:08:00 UTC, William Gothberg wrote:
I thought modern freezers were meant to have better insulation, so
why is mine always running? It doesn't seem to have a lower duty
cycle than the old ones of 30 years ago. Sure, the power
consumption (according to the label) is less, but shouldn't they
have better insulation nowadays? Or was all that banned by the
greenies for that ozone nonsense?

It's probably lost refrigerant gas.
ie a leak.

Hucker probably got it free.
And yes, could be a gas leak or it is just shagged.

No, I'm referring to all fridges and freezers in general. They just don't seem to run less than they did 30 years ago. I thought we'd got better insulation now.


Even assuming it's true, that current units run the same amount of time
that old ones did, the inference that this implies anything about
insulation is nonsense. New units use half or less the energy that old
ones did. You could have a large, old inefficient compressor running for 5 minutes
and a high efficiency new one running for 10 minutes and the latter could use
substantially less energy. It's not just the run times, it's the actual
power draw while running and the amount of time it runs. My fridge is so
quiet, I don't even know when it's running.

But that doesn't mean the insulation's better, it means the compressor and cooling pipes are better. If you get a more efficient heating system in your house, you don't gain free insulation, you have to buy that seperately. New freezers might use less power than before, but they're still losing the same amount of cold into the room, this could easily be sorted. And if you look at the energy efficiency ratings for new ones, you'll find a range of 5 to 19p/litre/year. That's almost a factor of 4, so we can easily see that a lot of makes (including big names like Bosch, Samsung, Whirlpool) must be doing something drastically bad. Assuming everyone uses decent compressors, it must be the shoddy insulation.
You are ASS U ME ing a lot.There are many different compressors - at
many different price points - with different efficiencies.
The cost of better insulation is trivial. The difference between
different compressors can be significant. Nothing comes free.

There are virtually no freezers built with "loose fill" insulation any
more. Virtually all use some form of a foamed insulation.The better
ones also use radiant reflection technology and pay attention to
eliminating thermal bridging.