c/kWh
Total capacity
341 L
267 L fridge + 74 L freezer
Energy rating
3
Star rating index 3.23
Annual electricity use
339 kWh
Label figure (comparative energy consumption)
Estimated running cost
$112 / year
$9.32 / month ยท $1,119 over 10 years

9% more electricity than the median of 50 comparable 300โ€“399 L top-mount fridge freezer registrations (312 kWh a year). It uses less than 14% of them. At 33c/kWh that is about $9 a year more than the median, $91 over 10 years.

Uses 11% less than the maximum allowed for its size and type under the minimum energy performance standard (382 kWh a year MEPS level).

Cost = label kWh ร— 33c/kWh in NZD; change the price above to your tariff.

How efficient is it for its size?

kWh per year. Bar: the middle 80% of 50 comparable 300โ€“399 L top-mount fridge freezer registrations. Dot: this model (above the median). Hover or tab to a mark for its value.

Cohort: every currently registered 300โ€“399 L top-mount fridge freezer sold in New Zealand, counted once per registration. Star ratings already account for size through the GEMS adjusted-volume formula; this comparison is in raw kWh against models a buyer would actually consider instead.

Westinghouse WTB3400** running cost

Per month
$9.32
Per year
$112
5 years
$559
10 years
$1,119

339 kWh ร— 33c/kWh. No inflation or tariff change assumed. Fridges run continuously, so the label figure is a whole-year estimate under standard test conditions.

Capacity and compartments

Total gross volume
341 L
Fresh food (fridge) volume
267 L
Frozen storage volume
74 L
GEMS adjusted volume
399 L
fresh food compartment
267 L gross
freezer compartment
74 L gross

Gross volumes exclude shelving. Fresh food = fresh food, chill and cellar compartments; frozen = freezer, two-star and ice-making (zero-star) compartments. Adjusted volume weights frozen space more heavily and is what the government uses to set the star rating for the size.

Similar top-mount fridge freezers that use less electricity

Same type, total capacity within 12% of 341 L, at least 3% lower annual kWh.

ModelStarsEst. cost / yrCompare
Chiq CTM348NW5E348 L241 kWh/yr5$80
Dreame DRB340WMS5AU345 L241 kWh/yr5$80
Chiq CTM347NB5E348 L241 kWh/yr5$80
Hisense HRTF325_series326 L256 kWh/yr4.5$84
Hisense HRTF325326 L256 kWh/yr4.5$84

Fridges similar to the Westinghouse WTB3400**

ModelCapacityStarskWh / yr
Haier HRF360T Series
2% smaller, same door count, similar star rating
334 L3.5319
Robinhood RHTMF334MSD
2% smaller, same door count, similar star rating
334 L3.5319
Euromaid ETM362 series
2% smaller, same door count, similar star rating
334 L3.5319
Haier HRF360TW3
2% smaller, same door count, similar star rating
334 L3.5319
Euromaid ETM362S
2% smaller, same door count, similar star rating
334 L3.5319
TCL P362TMW
2% smaller, same door count, similar star rating
334 L3.5319

Same consumer type, total capacity within 12% of 341 L; ordered by closeness of capacity, then lowest annual kWh.

Other Westinghouse models of similar size

ModelStarsEst. cost / yrCompare
Westinghouse WTB3700**350 L349 kWh/yr3$115
Westinghouse WTM3400WL341 L311 kWh/yr3.5$103

Compare WTB3400** with another fridge

Westinghouse WTB3400** specifications

Type
Top-mount fridge freezer
Configuration
Upright
Doors
2
Defrost
Variable defrost controller
Ice maker
โ€“
Width
1,756 mm
Height
598 mm
Depth
650 mm
Annual energy (label)
339 kWh
Star rating index
3.228
MEPS level (maximum allowed)
382 kWh
kWh per adjusted litre
0.849
Country of manufacture
Thailand

3 model numbers on 1 other registration. Variants registered separately can carry different star ratings and energy figures; check the registration number on the label.

ModelRegistrationStarskWh / yr
WTB3400**ARF39213343
WTB3400AHARF39213343
WTB3400WHARF39213343

Other model numbers on registration ARF3925

Registered together with the same test results, usually colour or finish variants.

New Zealand E3 registration details

Registration number
ARF3925
GEMS registration id
178014
Status
approved, available (self-reported)
Registration expires
6 September 2031
Registered for sale in
Australia, Fiji, New Zealand
Family
WTB3400**
Designation
Refrigerator/freezer
Product class
Class 5
GEMS group
Group 5T: refrigerator-freezer, automatic defrost, top-mounted freezer
Regulatory standard
Greenhouse and Energy Minimum Standards (Household Refrigerating Appliances) Determination 2019
Test standard
AS/NZS IEC 62552.3:2018
Consumer type rule
GEMS group 5T (frost-free fridge freezer, top-mounted freezer)

Source: E3 programme registration data (EECA, New Zealand) (trans-Tasman E3 registration data published by DCCEEW on data.gov.au, CC BY 3.0 AU). Dataset published 25 September 2026; last checked 26 September 2026. Manufacturer: electrolux.co.th. How the derived figures are calculated.