Depend on where you install, if bedroom, better go for inverter, you will not regret it. I install Daikin Inverter last few months to replace my old Non-Inverter unit. I predict maybe save less than rm20 in my bill, but surprisingly my bill from rm200 drop to rm150.. now i thinking to change my 10yo York aircon to Daikin Inverter too...

now new aircon is either using R410a or R32 and both is same either inverter or non inverter. Just contractor wanna charge you more than tell you inverter gas is more expensive.