0800 2 HEATPUMP
0800 2 432 87

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This calculator will help you work out the size of unit that is right for your room.

Floor Area
Please enter your floor area, we also need to know if it is of a solid slab or timber construction.

m²

On Slab

Timber

External Area
The surface area of the walls in the room that face the outside world.

m²

Insulated

Uninsulated

Internal Wall Area
the surface area of walls that face other rooms in your house (or ajoining units if apartments)

m²

Insulated

Uninsulated

Window Area
The total area of the windows in the room.

m²

Double Glazed/Full

Standard Window

Notes:

•	This calculator is a guideline for a qualified design engineer to visit you for a free quotation.
•	This figure is the capacity needed to maintain a temperature difference of about 12 degrees Celsius between indoors and outdoors.
•	These calculations do not apply to ducted systems.

We provide high quality products and advice regarding the most effective air conditioning and heat pump in Hamilton or the Greater Waikato.

This calculator is a guideline for a qualified design engineer to visit you for a free quotation.