Heatload calculator
This calculator is ideal to work out the size of a unit required for cooling a room or a neatly proportioned house. This guide is designed for maintaining temperatures at a comfortable range between 21-23 degrees on most days of summer. Specific locations such as seaside or low lying areas  will have different results.

To estimate the heat load of your house or room, you may need  to take some measurements or work off a plan and enter the required values in.

Please answer the questions below and press calculate.

Which City do you live closest too, or have the most similar weather patterns?    

Sydney
Canberra
Melbourne
Brisbane
Adelaide
Hobart
Perth

How many people will be using the room?     

Are there major heating appliances in this room/area?

None
TV
Oven

How many down lights which are in use during the hottest time of the day?



Ceiling Area:  

Uninsulated tiled roof
Insulated tiled roof
Uninsulated metal roof
Insulated metal roof
Room above with carpet , floating floors or concrete construction
Room above with no carpet and timber construction

Floor Area:

Uninsulated suspended timber floor enclosed under
Insulated suspended timber floor enclosed under
Uninsulated suspended timber floor unenclosed under
Insulated suspended timber floor unenclosed under
Uninsulated suspended concrete slab enclosed under
Insulated suspended concrete slab enclosed under
Unairconditioned room below

What is the total length of external walls? m. Ceiling height: m

Weatherboard with no insulation
Weatherboard with insulation
Cement and metal sheet with no insulation
Cement and metal sheet with insulation
Brick veneer with no insulation
Brick veneer with insulation
Concrete block masonry with no insulation
Concrete block masonry with insulation

What is the total length of the internal walls with unconditioned space adjacent? m

What is the aspect and area of your windows?

m² South  



m² South East  




m² South West  




m² East  




m² West  



m² North  



m² North East  




m² North West  

Total cooling requirement is:

Monthly specials Air ConditioningAir ConditionsBook Installation Air Condition
 Greenair ABN 11 095 287 059 | AU26535