Equipment size is very important when air conditioning a space. In this case, bigger is not necessarily better. A feeling of comfort is a result of several factors. Two constituents of air controlled by air conditioning are temperature and humidity. By nature of their design, if an air conditioner is over-sized for a given application, it will reach the desired temperature but will not dry the air out enough. If it is under-sized, it will dry the air out too much and may not reach the desired temperature. Either way, a person will often feel uncomfortable at a given temperature.

Please Note:

It is important to understand that the formulae provided here are 'rule of thumb' only and are intended as a guide, only. Before purchasing any equipment, you should discuss your requirements with our experienced staff who can assist you with fine tuning your selection and who will also ensure that the calculations performed are applicable to your situation.

ANSWER:  Often it is desirable to know the equipment size in BTU's. This is an acronym for British Thermal Unit and is the imperial way of measuring heat transfer. The equations are: