we will find out soon enough once I post my numbers up tomorrow.

I should have 2 days worth on numbers for tomorrow. taken at 7pm and 7am everyday.

7am to 7pm should be substantially less kwh as minimal air cond usage.
7pm to 7am should be the most.

Come back tomorrow to help me calculate the figure and do a guestimate pls.

I totally agree.
come back tomorrow once I post up my usage figures for 2 days. then we may be able to pinpoint the culprit.

Normal use for 1hp inverter York or Daikin should be around 750w to max 1000w

If let said from 1kw x 8 hrs x 30 = 240kwh for one unit only.

X 3 units = 720kwh

Lowest fan compressor still running and try cooling the room to the set temperature. For Argument sake, even if you run 12 hours at 100% capacity of your a/c, it will cost you roughly 300 units. that mean you will be paying RM 150 only.

if I have enough light later today, I will try to snap a picture of the York inverter details.
I am assuming your 750watt to 1000watt is based on the outdoor rated power?

I totally agree with you.
come back tomorrow.
I will post up my kwh figures for 2 days.
7pm to 7am
7am to 7pm.

Then maybe we can figure things out.

Ya correct my kampong York inverter 1hp is around 735w to 900w Max only, but my mother in law they never complain the bill is expansive

I guess just less than Rm200 only

can anybody help me find out what is my hitachi RWB560P2M power consumption in watts?
i remember got one singapore gov website that list the star ratings etc but now can't find already - http://www.nea.gov.sg/home

This post has been edited by idoblu: Jul 8 2015, 05:10 PM

bro kimsim, we both pakai cap kampong inverterlah.

You can see from the picture, it does state outdoor rated power in the label.

Indoor blower won't consume too much electricity one as it is just like a fan the blowing the cool air out only.

You need to take the daily consumption by variable the usage of appliance to find the which consume the most.
Alternatively, can get a clamp meter to measure the current intake by each appliance by clamping on the incoming wire, which is quite convenience as well.

take picture of the unit like kimsim. maybe it states it on the label. I know my York has labels and has the 5/4 star power saving rating.

Can see it in kampong too


Just stop them used electric water boiler for cooking water very often and also vacuum cleaner can be cost you more energy also.

Normal vacuum cleaner can be 2500-3000w easily

This post has been edited by kimsim: Jul 8 2015, 05:16 PM

I will take a pic of the indoor unit label. if I am not mistaken, it also has that 4/5 star power saving thing.

I don't dare use clamps on naked wires. not technically bright or clever enough to figure out which wires I should clamp plus don't want to get electrocuted. will try to get some other device to figure out the power usage.

my vacuum is 2800 watt. usage every 2 days for about 90 minutes. but have to use due to having small kids who likes to spill food and having a cat with thick and long fur.

The clamp is not a "clamp", just need the wire to pass through the clamp hole only.

You don't need to have exposed naked wire to measure the current.
Clamp at wrong wire won't get electrocuted, just get wrong reading only.

You can google what is "clamp meter".

Having said that if not technical savy enough, then better don't touch any wire.

Sorry ur model cloudnt find
https://e-services.nea.gov.sg/els/Pages/Sea...am=goods&type=p

got...its called a different model in SG but similar


how to read? its the second one- RWB550P2MS

This post has been edited by idoblu: Jul 8 2015, 05:48 PM

oops double posted

This post has been edited by idoblu: Jul 8 2015, 05:46 PM

2 ticks only

Per year just 423 kWh / day just clock on 1.17kwh only

hehe. agreed. sorry. am not technically savvy enough to handle these things.