Thank you for your message. BTW the water heater is instant hot. Guests can check from the previous reviews. That means hot water comes out within seconds. May be I further brief guests for the heater's usage next time.
HI Peishan, thank you for your advice. There are camphor balls in the cabinet to expel insects, as HK is very humid, so it may cause some smell you don't like. We would source some smell-less products for this.