Thanks Aron for the tips, useful indeed. Btw, I've replied Ah Boon rgd the signed quotation for a Mit sys-3 to be installed at my Kim Tian flat. My contractor wants to know when the installation would be carried out as he is putting up the false ceiling/L-Box at the masterbedroom, so he needs to know the position of the piping and unit itself. Dropped u guys an email on this, thanks!