my developer provide drain pipe for my house. its conceal inside the wall but without any insulation. they need to insulate the drain pipe as well right?

coz the water is cold. can cause the outer pvc drain pipe to "sweat" thus wet the concrete/wall when conceal inside? or my knowledge is wrong?

ok. noted.

the white foam for insulation is a better quality than the normal black insulflex right?

i use all non inverter

york is good? planing to install also.
currently looking at york and panasonic and sharp. non inverter.

aircond sifu here
need some suggestion and advise

my house layout as attached.


1. based on the layout and dimension, does the a/c capacity is sufficient? is it underpower or overpower?
2. i will do a divider for the living & dining area
3. is it a good idea to place the a/c at the place in the guest room? or should i change direction? reason i choose that small place is so that i can install back to back terrace house have headache when comes to the piping routing

hope everyone can give advise. thanks!

see attached drawing with orange colour is original a/c point with drain pipe which developer provide

1. living room i change location becoz if i use back original location i need a long piping for my compressor. i dont want compressor near my main entrance.

2. i change location for dining as well so that my piping can go through the maid room area easily. shorter piping also.

3. original location for bedroom 2 is the one u mention i guess? due to b2b installation also thats why i switch it further back. now like u say worry on the coldness. maybe i need to upgrade to 1.5hp?

4. master bedroom 1.5 enough? coz my balcony area will be seal up, then there will no longer have any door over that place. it will be a study area there. so open space increase.

btw, the hp that i propose is based on normal a/c not inverter. does that affect as well?
and my floor to ceiling height is around 10ft high for ground floor and 9.5ft for 1st floor

should i put 1.5hp in my bedroom 2

but my house is a terrace, and not really expose to direct sunlight. need a 2hp? i think a bit overkill? no?


at the moment plan to put bed on the left side on the entrance. which air con wind will not be directly blowing on the user.

any recommended good btu calculator. googling it up and too much infor