What size Heat Pump do I need

What Size Do You Need

Use the temperature guide map to check the winter temperature in your area then refer to the Bedroom or Lounge table to find the heating capacity required (kW) to maintain various room sizes at around 21慢.

Remember that heating is only half the story, your heatpump will also keep you cool in the summer.

Bedroom/Studies (Smaller window/wall ratios)

Room Size	Uninsulated			Insulated
Room Size	Outdoor Air Temp			Outdoor Air Temp
Meters	+5慢	0慢	-5慢	+5慢	0慢	-5慢
3x3	1.00	1.75	2.25	1.00	1.50	1.75
3x4	1.25	2.00	2.75	1.00	1.75	2.00
4x4	1.50	2.50	3.25	1.25	1.75	2.50
4x5	1.75	3.00	4.00	1.50	2.25	3.00
5x5	2.25	3.50	4.75	1.75	2.75	3.50
5x6	2.50	4.00	5.25	1.75	3.00	4.00
6x6	2.75	4.50	6.00	2.00	3.25	4.50

Lounge/Dining/Family (Larger window/wall ratios)

Room Size	Uninsulated			Insulated
Room Size	Outdoor Air Temp			Outdoor Air Temp
Meters	+5慢	0慢	-5慢	+5慢	0慢	-5慢
3x3	1.00	1.75	2.25	1.00	1.50	1.75
3x4	1.25	2.00	2.75	1.00	1.75	2.00
4x4	1.50	2.50	3.25	1.25	1.75	2.50
4x5	1.75	3.00	4.00	1.50	2.25	3.00
5x5	2.25	3.50	4.75	1.75	2.75	3.50
5x6	2.50	4.00	5.25	1.75	3.00	4.00
6x6	2.75	4.50	6.00	2.00	3.25	4.50

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