How efficient are heat pumps?

Nothing comes close to matching heat pumps in running costs or efficiency.   

Below are some approximate running costs for Heat Pumps supplied by Kiwi Electrical Ltd. 

Prices based on inverter units running 50 hours per week in Heating mode/auto fan speed.  

Model Input Power (COP) Rated heating output Weekly Cost Monthly Cost
High Walls          
ASTG09L 730W 4.66 3.4kW $5.00 $21.67
ASTG12L 1.11kW 4.32 4.8kW $7.50 $32.50
ASTG18L 1.49kW 4.03 6.0kW $10.38 $44.98
NOCRIA AWTZ14L 1.35Kw 4.44 6.0Kw $8.10 $35.10
NOCRIA AWTZ18L 1.63kW 4.11 6.7kW $9.80 $42.47
NOCRIA AWTZ24L 2.35kW 3.61 8.5 $14.10 $61.10
ASTA24L 2.42kW 3.54 8.0kW $14.60 $63.27
ASTA30L 2.64kW 3.39 9.0kW $15.84 $68.64
           
Floor Console          
AGTV14L Compact 1.14kW 3.61 5.2kW $6.80 $29.47
ABTA18L 1.66kW 3.61 6.0kW $9.90 $42.90
ABTA24L 2.21kW 3.61 8.5kW $13.20 $57.20

* These prices are based on estimates of the compressor running at 60% output, and units being correctly sized for the area in which they are operating.  Running costs above are estimated by Kiwi Electrical Ltd, and will vary depending on set temperature, outdoor temperatures etc.