Calculate the size your air conditioning or heating system
Let's get started!
Your room measurements:
The heat load of a building or room is calculated by adding together the heat gain from individual items.
The major factors are:
- The size of the area being cooled
- The size of the space that requires cooling
- Window sizes and positions
- The number of people who occupy the space
- Heat from electrical equipment, machinery and plant
- Heat from lights
Our cooling calculator will give you an approximate value for this heat gain, measured in BTUs (British Thermal Units), and help identify the most appropriate cooling solution.
A fundamental necessity is that the cooling output of the air conditioner is greater than the heat gain of the space it intends to serve.
For a quick and simple indication of the kW’s of heating you require this heating calculator is a useful starting point.
It uses CIBSE recommended criteria for UK conditions for heating calculations which are -3 to +18 degrees Celcius. Thus heating equipment is expected to achieve a 21 degrees Celcius difference, and our calculator will automatically work within these defined maximum parameters and reduce target temperatures as necessary to reflect expected capabilities.
This is just the beginning!
You need an HVAC engineer! There are a number of complex and involved calculations our designers make when sizing an air conditioning system for a premises. They have very sophisticated tools and computer modelling software to measure heat loads.
This quick estimation calculator will only provide an approximate check of heat gain. It does not replace the need for expert advice and detailed heat load calculations that take into account a number more factors than you see here. For example shading to windows, location of premises, building construction and thermal properties. For this you should contact Clean Air.
Disclaimer: Whilst we have taken every precaution to help ensure this calculator is accurate, we accept no responsibility or liability resulting or howsoever arising from its use.
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