Fridges domestic vs catering

RomfordNavy

Does anyone know if the method of measuring power consumption of fridges is different between domestic fridges and industrial fridges?


Have been looking for an undercounter fridge but want one with an electronic thermostat. Unfortunately none of the domestic manufacturers fit electronic thermostats to this undersounter fridges, whereas industrial ones all seem to come with the requirted electronic thermostat.

However I notice that the industrial quality fridges seem to use quite a bit more power that domestic ones:
Polar CD610 - 409 kWh/yr
Bosch KUR15A50GB - 124 kWh/yr

Is it possible that they are both measured using a different duty cycle?

that

The polar is a bigger fridge by about 13 litres. Does that mean extra insulation in the bosch?

The bosh is rated A+, but the other only A

coffeehound

Are they assuming the same internal temperature too?

Owain_Moneysaver

Possibly - commercial fridges are usually much more powerful to keep cold despite more frequent door opening.

that

and also extenal temperatue is a factor

the Zanussi which is the same capacity as the polar and but is A++ uses 84kw/annum https://www.gillmans.co.uk/product/zanussi-60cm-under-counter-larder-fridge-in-white-zrg16602wv--zan-zrg16602wv/

From the AEG bar fridge "A++ class – 21% more efficient than A+-class, comparing the classes"

Also from the AEG, there is gross fridge capacity and net fridge capacity too

StumpyPumpy

The compressor in a commercial fridge is normally more than double the size of a domestic fridge as it is designed to work in a hot environment (commercial kitchen) with the door being opened a lot more than in a domestic environment. There is also a requirement to cool down quicker than a domestic fridge thereby making it work harder. It will also cool to and maintain a specific set temperature regardless of ambient temperature which a domestic fridge generally doesn't (hence the temperature dial being sequentially numbered rather than having temperatures specified on it). All this takes more energy to maintain.

Additionally as well as the previously mentioned capacity difference between the two models you specified, the Polar is 120w versus 90w for the Bosch.

Oh, and to answer your question: No, I don't believe there is any difference in the testing as both figures are quoted as under Regulation 2010/1060/EU which confusingly states that it relates to household refrigerating appliances but subsequently points out that it covers also appliances for non-household use or
for the refrigeration of items other than foodstuffs.

SP