96apeking

I'm also looking for a tiler, mind if I request for those who know to PM me as well.. Thanks!

Any updates from HDB regarding this?

Actually to calculate if the air-con can cool down a space takes much more than looking at the BTU. Generally, reading the BTU numbers will get you through but if you have a lot of lights, appliances giving out heat and people in the room, the BTU numbers would not help as much as the cooling rate the air-conditioning unit can handle. Home air-conditioning units differ from industrial cooling towers etc but sometimes, if you're lucky the 18,000BTU unit might have a better cooling rate than the 24,000BTU unit. Then, you can save money on electricity bills because the air conditioning system is more productive, requiring less energy (power) to cool down the space.