Hey guys,
Been looking around for a fridge, was sold on this Haier - https://www.jbhifi.com.au/products/haier-hrf520fhc-492l-fren…
But then I perused Ozb reviews of Haier and it doesn't seems to be the greatest.
Continued looking and I found this Hisense fridge with a ….. 6-Star Energy rating?
https://www.jbhifi.com.au/products/hisense-hrbm483b-483l-bot…
It seems like it's just been 'released' according to Hisense's website - https://hisense.com.au/product/bottom-mount-black-steel-hrbm…
" *As at July 2021 HRBM483B "
Can't find any reviews of it - but I'm a little bit suspicious. To good to be true?
It is 6 stars for a specific type of configuration, layout, volume and number of compartments.
from EnergyRating.gov.au https://www.energyrating.gov.au/products/domestic-refrigerat…
I'm no physicist or mathematician but my guess is that the larger the fridge is, the easier it is for it to attain a high energy star rating (better efficiency) simply due to Square–cube law. Fridges gain heat through their surfaces. In a small fridge the ratio of surface area to volume is higher than in a large fridge.
and also because of the higher thickness of the wall allowed for taller and wider fridges.
A small fridge is likely to have thinner insulation compared to a big fridge, because if the walls were made thicker you'd have less storage inside.