QUOTE(ceo684 @ Aug 31 2021, 01:49 AM)
Step size of AC is not linear.
1.5hp actually 1.3hp (12k btu class) and more suitable for the room size
Minimum should use 12k btu AC. Overworking a 1hp (9k btu) not gonna save power also. This 12k btu will work fine for sensible target temp of 25C.
If the room is very hot in daytime (like top floor or west facing) get a 2hp (18k btu class) unit. Also if you like to set at 16C freezer target temp, then get 18k btu..
My master bedroom is similarly sized, I was targeting for 2.5HP (based on the showroom unit installed, its the cassette unit placed center of the room) then after I read your comment, 2HP is sufficient? I usually set to 23-25C, the yellow portion are balcony windows. Facing North East (sunset problem is minimal on this room).1.5hp actually 1.3hp (12k btu class) and more suitable for the room size
Minimum should use 12k btu AC. Overworking a 1hp (9k btu) not gonna save power also. This 12k btu will work fine for sensible target temp of 25C.
If the room is very hot in daytime (like top floor or west facing) get a 2hp (18k btu class) unit. Also if you like to set at 16C freezer target temp, then get 18k btu..