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Appliance running costs

 

Heating

Appliance

Typical loading

Approximate cost at 23.50 cents per kWh (Incl. GST)

 

Assumptions

Bathroom heater

- Fan

- Infrared

 

2,400 watts

1,100 watts

 

56c/hour

26c/hour

 

Convector heater

1,500 watts

35c/hour

 

Cupboard heater

180 watts

$7.11/week

 

Fan heater

2,400 watts

56c/hr

 

Oil-filled heater

 

 

- 1,200 watts

- 2,000 watts

- 2,400 watts

 

28c/hour

47c/hour

56c/hour

 

Radiant heater

- One-bar heater

- Two-bar heater

 

1,200 watts

2,400 watts

 

28c/hour

56c/hour

 

Towel rail heater

- Large

- Small

 

80 watts

40 watts

 

$3.16/week

$1.58/week

 

Nightstore heater

- Small

- Medium

- Large

 

1,700 watts

 

2,500 watts

 

3,300 watts

 

$2.60/night

 

$3.82/night

 

$5.04/night

 

Assuming 6.5 hours per night

Assuming 6.5 hours per night

Assuming 6.5 hours per night

Heat pump - 4.4kW heating output

 

2kW

 

47c/hour

 

Assumes full output

Kitchen

Appliance

Typical loading

Approximate cost at 23.50 cents per kWh (Incl. GST)

Assumptions

Coffee maker

750 watts

18c/hour

 

Crock pot

230 watts

5c/hour

 

Deep fryer

2,000 watts

47c/hour

 

Dishwasher

2,000 watts

47c/hour

 

Freezer

- Chest

 

- Vertical

 

- 360 litres

 

- 370 litres

 

$1.96/week

 

$2.62/week

 

based on a 3 star freezer that uses 433kWh/pa

based on a 3 star freezer that uses 579kWh/pa

Fridge/Freezer

- Medium

- Large

 

 

$1.70/week

$1.88/week

 

based on a 4 star fridge/freezer that uses 376kWh/pa

based on a 3.5 star fridge/freezer that uses 415kWh/pa

Frypan

1,240 watts

29c/hour

 

Jug

2,400 watts

3c for one boiling

 

Assuming 3 mins to boil jug

Microwave oven

750 watts

18c/hour

 

Oven

1,900 watts

45c/hour

 

Range hood

150 watts

4c/hour

 

Toasted sandwich maker

700 watts

16c/hour

 

Toaster

1,400 watts

5c for ten slices

 

assuming 1min/slice

Lighting

Appliance

Typical loading

Approximate cost at 23.50 cents per kWh (Incl. GST)

Assumptions

Light bulb

40 watts

60 watts

100 watts

10c for 11 hours

6c for 4 hours

9c for 4 hours

 

Fluorescent

- Four feet

- Five feet

 

40 watts

65 watts

 

10c for 11 hours

11c for 7 hours

 

Laundry

Appliance

Typical loading

Approximate cost at 23.50 cents per kWh (Incl. GST)

Assumptions

Iron

1,400 watts

22c/large load

assuming 40 mins ironing

Dryer

1,800 watts

42c/hour

 

Washing machine

- Cold wash

- Hot wash

 

165 watts

2,000 watts

 

5c/load

47c/load

 

assuming 80 mins to do a load of washing

assuming 1 hour to do a load of washing

Other appliances

Appliance

Typical loading

Approximate cost at 23.50 cents per kWh (Incl. GST)

Assumptions

Computer and monitor

200 watts

5c/hour

 

Dehumidifier

300 watts

7c/hour

 

Changed as better than using 100 hours as a basis

Electric blanket - Double

200 watts

5c/hour

 

Extraction fan

40 watts

11c for 12 hours

 

Hairdryer

1,600 watts

38c/hour

 

Lawn mower

1,200 watts

28c/hour

 

Radio

8 watts

1c/week

 

Assuming 1 hour/day

Shaver

15 watts

1c/week

 

Assuming 25 min/day use

Spa pool

6,000 watts

141c/hour

 

While Spa pool is in use

Stereo

85 watts

2c for 4 hours

 

Television

- CRT

- Plasma - 42''

- LCD - 37''

 

81 watts

475 watts

 

180 watts

 

8c for 4 hours

45c for 4 hours

17c for 4 hours

 

Vacuum cleaner

1,100 watts

26c/hour

 

Video recorder

21 watts

2c for 5 hours

 

DVD player

18 watts

2c for 5 hours

 

Note: these estimated running costs are based on a typical household paying 23.50 cents per kilowatt hour (kWh), including GST. These costs are subject to change and are for general guidance only. For more information visit the Energy Efficiency and Conservation Authority (EECA) at www.eeca.govt.nz