I went to Best Tech at Toa Payoh and they recommended me this two brands and model:
Mitsubishi Electric Starmex Inverter MXY-4A28VA Outdoor unit with 1 x MSXY-GA13VA and 3 x MSXY-13VA indoor units.
Toshiba Aircon Inverter, RAS-M10NKCV x 3 and RAS-M13NKCV with RAS-4M26SACV
Which will be a better system? He keep emphasizing on Toshiba is better because their compressor is made in Japan and they are the original inventor of Inverter Aircons. And he claimed Toshiba will save more electricity by showing us the Energy Label And he said Mitsubishi is popular because they have put alot of money on advertising with Jack Neo on TV, newspaper and etc. The price difference between two is just like $60 (Toshiba $3400, Mitsubishi $3460).
They claimed the agents/distributors giving K-Flex insulators at the moment. and when i ask about using thicker copper pipe for inverter they say it's not good cause theres no enough pressure if the space inside the pipe is big. Is there any shop that can provide better installation materials and better pricing than this?
Have you check with Gain City if you going for credit card or installment?
If you paying cash, can also check with Hong Tar.