p/kWh
Energy class
A
A to G scale, GB energy label
Official energy figure
112 kWh/annum
112 kWh a year at your usage
Our estimated running cost
£29 / year
£295 over 10 years
Total volume
363 L
363 L fridge · 0 L freezer
Energy (label)
112 kWh · a year
Noise
29 dB · class A
Climate class
SN/T

6% less energy than the median of 58 comparable 300 to 399 L fridges in our current UK dataset (120 kWh/annum). It uses less than 78% of them. At your rates that is about £2 a year less than the median, £20 over 10 years.

How efficient is it for its size?

kWh/annum. Bar: the middle 80% of 58 comparable 300 to 399 L fridge registrations. Dot: this model (below the median). Hover or tab to a mark for its value.

Cohort: every 300 to 399 L fridge in our current UK dataset with a verified product information sheet, compared on the label figure (kWh/annum).

Fridge freezers that use less energy

Same type and size group, at least 3% lower label figure. UK products only.

ModelClassEst. cost / yrCompare
Samsung Electronics RR70H39FCTEU77 kWh/yr387 LC£20
Samsung Electronics RR39C7BB7WW77 kWh/yr387 LC£20
Hisense RL5K370GSFC91 kWh/yr372 LC£24
Liebherr Rd 5000_99489515193 kWh/yr348 LD£24
Liebherr Rd 5220_99489525198 kWh/yr399 LD£26

The label states energy use per year at a standard 25 °C test; fridges run continuously, so no usage input applies. Estimated cost uses your electricity price and usage settings.

Fridge freezers similar to the Siemens KG39NAIAU

ModelClassEst. cost / yrCompare
Bosch KGN392LEBG238 kWh/yr368 LE£63
LG GBBSJ2CCPY175 kWh/yr375 LC£46
Midea MDRD502MTE46118 kWh/yr362 LE£31
INDESIT MLINF1442W4UK143 kWh/yr365 LE£38
Hotpoint HPMLF 6442 W4UK143 kWh/yr365 LE£38
Hotpoint HPMLF 6442 XBR4UK143 kWh/yr365 LE£38
Beko LNP4686LVW143 kWh/yr365 LE£38
Beko LSP4671PS119 kWh/yr367 LE£31

The label states energy use per year at a standard 25 °C test; fridges run continuously, so no usage input applies. Estimated cost uses your electricity price and usage settings.

Compare KG39NAIAU with another fridge freezer

Siemens KG39NAIAU specifications

Structured from the supplier’s product information sheet, the document the GB energy label is based on.

Type
fridge
Energy efficiency class
A
Energy efficiency index (EEI)
41
Annual energy consumption
112 kWh/a
Total volume
363 L
Fridge (unfrozen) volume
363 L
Freezer volume
0 L
Freezer rating
–
Noise
29 dB(A), class A
Climate class
SN/T
Design
FREE_STANDING
Dimensions (H × W × D)
20300 × 6000 × 6650 mm

KG39NAIAU energy label and product information sheet

Energy labelFull size
GB energy label for the Siemens KG39NAIAU, class A
The supplier’s label image.

Energy label and sources

Great Britain record. Northern Ireland follows the EU label; an EPREL record is shown here once linked.

Scheme
GB energy label (Energy Information Regulations)
Regulation
EU 2019/2016 as applied in Great Britain
Model identifier
KG39NAIAU
Supplier
Siemens
Energy class
A
Label figure
112 kWh/annum
EPREL registration
2168045
Source
eprel_registration_from_model_search (official structured record)
Retrieved
24 September 2026

See the energy label and product information sheet above

Energy class shown
A
Seen at a UK retailer
in stock, £1,199 on 20 September 2026 · listing

UK figures on this page are from the supplier’s product information sheet, the document behind the GB energy label, and are not edited. Running costs, benchmarks and comparisons are our calculations. Retailer price and availability are observations on the date shown, not offers. How the UK data is gathered and calculated.