When I began my research on air conditioner for my home, I checked so many websites as well as discussed with my friends who already were using AC’s for last couple of years ….
Most of the websites provide rocket science details for selecting air conditioner for home !! Surely to get thoroughly confused …
So based on my experience of buying two different AC models and used for three years I have written Easy Air conditioner buying guide for you
Capacity of AC [Depends upon area of room in Sq. ft]
- 120 ~140 Sq. ft. 1 ton
- 150 ~180 Sq. ft. 1.5 ton
- 180 ~240 Sq. ft. 2 ton
- Please use the AC tonnage calculator by LG here
Power consumption of an AC
Select 5 STAR energy rating means minimum power consumption with best efficiency, as the stars lower in numbers AC efficiency decreases (as well as price decreases)
I have selected 5 STAR rating AC for room which is occupied by more persons as well as running in day tome too. But for my room where I use it only at night time with only two of us, I have selected 3 STAR rated AC saving some initial investment cost too.
Split or Window AC
Window AC’s are now almost outdated and split AC’s are popular due to their silent operation during night. I have both my AC’s split (I sold out old window AC)
Now what all the above standard factors are almost known to everyone ! so what value that I will be adding for you ?
Here are important things which are must to look into before buying an AC
- Direction of louvers :
This is the most important factor which I came to know when I bought my second AC !
Below is photograph of good louver design for an AC, look that the direction of louvers is able to throw air almost straight hence ensuring that you can direct air in any length of room. (this is my 3 Star rated 1 ton AC)
Look at bad design of louvers, where maximum upward throw of air does not reach even at the mid of room !! this is my 5 Star rated AC and useless since air all the time remains directed downward instead of room mid !! DO NOT CHOOSE SUCH MODEL.
This shows that while you select the air conditioner model it is most important to choose good design of louvers.
Another factor is timer control
Surprisingly my 3 Star AC has timer control where clock can be set, which ensures that AC automatically switches off at 5 AM (say), whereas my 5 Star rated AC have timer which works on number of hours !! means I need to calculate and set hours which is very difficult. So do check if the AC has clock in it. This saves your energy bills drastically.
While you switch off your AC unit condensation takes place, which can cause building fungus inside the evaporator unit, hence blow facility helps which keeps the blower ON for about 5 minutes bringing the evaporator coils to normal temperature thereby avoiding risk of fungus build. So do check for this.
In my case the 5 Star one do not have blower option whereas 3 star one has blower option in it.
Here are some brands with 1 ton to 1.5 ton range … Suggestion is to go for brands like Samsung, LG, Godrej which are proven over years.
Other factors like noise of outdoor unit is almost same in most of the brands (as per my observation) and if the outdoor unit is placed & fixed appropriately you will not get into trouble of noise inside the room.
I will append this post with maintenance tips, which you can do yourself without spending on annual maintenance fees from AC manufactures (so called AMC charges)