New Zealand · costs in NZD
Top-mount fridge freezer · 2 doors
Westinghouse WTB3700AH Fridge
Westinghouse WTB3700AH is a 350 L top-mount fridge freezer registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration ARF3922).
- Total capacity
- 350 L
- 275 L fridge + 75 L freezer
- Energy rating
- 3
- Star rating index 3.15
- Annual electricity use
- 349 kWh
- Label figure (comparative energy consumption)
- Estimated running cost
- $115 / year
- $9.60 / month · $1,152 over 10 years
12% more electricity than the median of 50 comparable 300–399 L top-mount fridge freezer registrations (312 kWh a year). It uses less than 2% of them. At 33c/kWh that is about $12 a year more than the median, $124 over 10 years.
Uses 9% less than the maximum allowed for its size and type under the minimum energy performance standard (385 kWh a year MEPS level).
Cost = label kWh × 33c/kWh in NZD; change the price above to your tariff.
How efficient is it for its size?
Cohort: every currently registered 300–399 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 WTB3700AH running cost
- Per month
- $9.60
- Per year
- $115
- 5 years
- $576
- 10 years
- $1,152
349 kWh × 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
- 350 L
- Fresh food (fridge) volume
- 275 L
- Frozen storage volume
- 75 L
- GEMS adjusted volume
- 409 L
- fresh food compartment
- 275 L gross
- freezer compartment
- 75 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 350 L, at least 3% lower annual kWh.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Chiq CTM347NB5E348 L241 kWh/yr | 5 | $80 | |
| Chiq CTM3******348 L241 kWh/yr | 5 | $80 | |
| Dreame DRB340WMS5AU345 L241 kWh/yr | 5 | $80 | |
| Hisense HRTF325S326 L256 kWh/yr | 4.5 | $84 | |
| Hisense HRTF325326 L256 kWh/yr | 4.5 | $84 |
Fridges similar to the Westinghouse WTB3700AH
| Model | Capacity | Stars | kWh / yr | Why similar |
|---|---|---|---|---|
| Chiq CTM3****** same capacity, same door count | 348 L | 5 | 241 | same capacity, same door count |
| Samsung Electronics SRT3700S same capacity, same door count | 348 L | 4 | 295 | same capacity, same door count |
| Samsung Electronics SRT3700B same capacity, same door count | 348 L | 4 | 295 | same capacity, same door count |
| Chiq CTM348NW5E same capacity, same door count | 348 L | 5 | 241 | same capacity, same door count |
| Altus ATM347W 1% smaller, same door count | 346 L | 4 | 303 | 1% smaller, same door count |
| Dreame DRB340WMS5AU 1% smaller, same door count | 345 L | 5 | 241 | 1% smaller, same door count |
Same consumer type, total capacity within 12% of 350 L; ordered by closeness of capacity, then lowest annual kWh.
Other Westinghouse models of similar size
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Westinghouse WTB3400AK341 L339 kWh/yr | 3 | $112 | |
| Westinghouse WTM3400WL341 L311 kWh/yr | 3.5 | $103 |
Compare WTB3700AH with another fridge
Westinghouse WTB3700AH specifications
- Type
- Top-mount fridge freezer
- Configuration
- Upright
- Doors
- 2
- Defrost
- Variable defrost controller
- Ice maker
- –
- Width
- 1,755 mm
- Height
- 598 mm
- Depth
- 650 mm
- Annual energy (label)
- 349 kWh
- Star rating index
- 3.153
- MEPS level (maximum allowed)
- 385 kWh
- kWh per adjusted litre
- 0.853
- Country of manufacture
- Thailand
Other model numbers on registration ARF3922
Registered together with the same test results, usually colour or finish variants.
New Zealand E3 registration details
- Registration number
- ARF3922
- GEMS registration id
- 178010
- Status
- approved, available (self-reported)
- Registration expires
- 15 August 2031
- Registered for sale in
- Australia, New Zealand
- Family
- WTB3700**
- 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.