A room airconditioner is ideal for rooms up to 200 sq ft where one of the walls is exposed to the outside. In case of budget and space constraints, one could go for a Window AC.

Though window units are cheaper and easy to install; Split ACs are quieter in operations, more aesthetically appealing and have better air distribution. If there are no exposed walls, a Split AC is the only option. Split ACs have two units - a compressor unit outside and the indoor unit inside. Since the compressor is kept outside, noise levels are lower in a split airconditioner as compared to the window airconditioner. However, installing the split units may require some renovation work, which implies a monetary investment.

To know what tonnage of AC to buy, one needs to do a heat load calculation of the room to be airconditioned. Very often, a thumb of rule of 100 sq ft = 1.0 ton is applied to calculate the room AC tonnage. However, this method may not be accurate.

The size of the windows, location of the walls (west or east facing), floor, number of people expected to occupy the room, other gadgets in the room and lighting, amongst others, all play a role in calculating the right tonnage for the room. It is recommended to request for a technician to visit the room and allow him to do a heat load calculation. For a quick calculation, please visit the tonnage calculator section in the Blue Star site.

The right AC tonnage is a critical step since buying an undersized airconditioner may provide inadequate cooling with perhaps the compressor never cutting off, and buying an oversized one may result in high power bills.

To know what tonnage of AC to buy, one needs to do a heat load calculation of the room to be airconditioned. Very often, a thumb of rule of 100 sq ft = 1.0 ton is applied to calculate the room AC tonnage. However, this method may not be accurate.

The size of the windows, location of the walls (west or east facing), floor, number of people expected to occupy the room, other gadgets in the room and lighting, amongst others, all play a role in calculating the right tonnage for the room. It is recommended to request for a technician to visit the room and allow him to do a heat load calculation. For a quick calculation, please visit the tonnage calculator section in the Blue Star site.

The right AC tonnage is a critical step since buying an undersized airconditioner may provide inadequate cooling with perhaps the compressor never cutting off, and buying an oversized one may result in high power bills.