This Week's Top Deals
The K 12421 SD is a two number of vegetable drawer fridge. Most of the other refrigerators of a similar type and age to the K 12421 SD have between one and five number of vegetable drawers.
The K 12421 SD is a six shelves/baskets fridge.
The efficiency rating of this refrigerator is A+, however the K 12421 SD is in the most expensive 19% of all 151 Freestanding refrigerators that were launched more than two years ago that we have assessed for running costs. Based on average usage levels and energy prices, we estimate the K 12421 SD will cost £341 over 24 years to run.
Like most of the other refrigerators of a similar age and spec to the K 12421 SD, the K 12421 SD does not have a water dispenser.
There are a number of other fridges which also have a water dispenser that you might want to consider including the Samsung RR35H6610SA which is also cheaper.
The lowest energy usage of fridges of a similar age and spec to the K 12421 SD is 0.11kWh/24h, the highest is 4.5kWh/24h, and the average energy usage is 0.44kWh/24h. The K 12421 SD has one of the higher energy usage (0.397 kilowatts hour per 24 hours) amongst Freestanding refrigerators of this age.
The currents of fridges of a similar age and type to the K 12421 SD range from 0.32A to 13A. With a current of 13 ampere, the K 12421 SD's current is one of the highest amongst Freestanding refrigerators that have been on the market for a comparable time to the K 12421 SD.
The K 12421 SD has increased in price by £0.01 in the last 24 days.
It was over three years ago when this fridge was released.
With a depth of 631 millimeters, the Miele K 12421 SD has a relatively standard depth compared to most of the other fridges of this spec and age.
We think you might also be interested in some of the other 631mm deep refrigerators currently available including cheaper refrigerators such as the Miele K 12421 SD1 (£629.99).
Other refrigerators with a deeper depth that you might want to look at include the KB 4210 (£799.00) (630mm), or the KB 3660 (630mm) both from Liebherr.
With a height of 1,447 millimeter, the K 12421 SD has a pretty typical height compared to most of the other refrigerators of this age and spec.
Other 1,447mm high fridges currently available that you might also want to consider include cheaper fridges such as the Miele K 12421 SD1 (£629.99).
Alternative fridges with a taller height that you might want to look at include the AEG S63300KDW0 (£489.00) (1,540mm and cheaper).
At 39 decibels, the K 12421 SD has a relatively typical noise level compared to most of the other fridges of a similar spec and age to the K 12421 SD.
We compared this fridge to all the other 39dB noise level fridges and we think cheaper refrigerators such as the AEG S63300KDW0 (£489.00) is also worth considering.
If you don't mind having a louder noise level then you might want to consider the KS36VBW30 (£669.99) (39dB), or the KS36VBI30 (£786.46) (39dB) both from Siemens.
Design  
Case  Freestanding 
Type  Upright 
Shelve Material  Glass 
Housing Material  Metal 
Bottle Rack  Yes 
Egg Balcony  Yes 
Number of Vegetable Drawer  2 
Shelves/baskets  6 
Control  Button 
Reversible Door  Yes 
Door Hinge  Right 
Colour  White 
Performance  
Noise Level  39dB 
Super Cool Function  Yes 
Automatic Defrost Function  Yes 
Defrost Function  Yes 
No Frost System  No 
Climate Class  SN, SN (Subnormal), SN (Subnormal)  T (Tropical), T, T (Tropical) 
Gross Capacity  301L 
Ergonomics  
Interior Light  Yes 
Power  
Energy Efficiency Class  A+ 
Annual Energy Consumption  145kWh 
Current  13A 
Energy Usage  0.4kWh/24h 
Energy Star Certified  No 
Weight & Dimensions  
Height  1,447mm 
Width  600mm 
Depth  631mm 
Weight  60kg 
Electricity cost  £340.51 
Electricity cost when on standby  
@ £0.139 per kwh  Edit electricity price and usage
kwh per hour
Electricity price £per kilowatt hour
Annual electricity price inflation %
Hide electricity usage and price


Water cost when switched on  
@ £0.003474 per litre  Edit water usage and price
litres per hour
Water price £per litre
Annual water price inflation %
Hide water usage and price


Submit Energy Consumption Figures 

Total running cost over 10 years  £340.51 
Running this fridge over 10 years will generate 1.7 tonnes of carbon dioxide (CO_{2}).  
To offset that much CO_{2} you would need to plant 44 tree seedlings and grow them for 10 years. 
Manufacturer Part Numbers  miele k12421, miele k12421s, miele k12421sd 
Barcodes  04002515065921 
Energy Efficiency Rating is Superior  
Bigger Gross Capacity  
A Bit Narrower 
403mm Taller  
Heavier 
16% Bigger Gross Capacity  
One More Shelves/baskets  
Two Months Newer  
2% Cheaper to Run 
Only One Number of Vegetable Drawer  
Louder Noise Level 
Higher Energy Efficiency Rating  
Six Months Newer  
16% Lighter 
Two Less Shelves/basketss  
More Expensive to Run Over Five Years by 35% 
Higher Energy Efficiency Rating  
Six Months Newer  
16% Lighter 
Two Less Shelves/basketss  
35% Higher Running Costs Over Five Years 