HWZ Forums

Core2max · 11-01-2011, 04:35 PM

Good to hear you could save 75 a month on PUB.

Need to see my bill next month...

sentosaubin · 12-01-2011, 09:02 AM

Do not be surprised if you didnt see saving on next bill, cause your meter reading might be estimated on the next reading..

Core2max wrote:

Good to hear you could save 75 a month on PUB.

Need to see my bill next month...

sentosaubin · 12-01-2011, 09:02 AM

Actually I'm saving close to 400 kWh or around 100 bucks every month ....
Did my math wrong on first reply

sentosaubin wrote:

I am saving like 300 kwH every month by changing to inverter.
At current rate of around 25c, that means I'm saving 75 bucks every month.. hurray!

kimsim · 12-01-2011, 09:47 AM

Here I have some formula to calculate of monthly usage 8 per/hr x 30days.
Non-inverter Aircon system 3, power input watt : 1.935kw x 8 x 30 = 464.4 X 0.25cent per/kw = $116.10
inverter system 3 power input watt : 1.9Kw of Part load equal to 70% saving = 0.63kw x 8 x 30 = 151.2kw X 0.25 = $37.80 per months can be up to $78.30 per/mths so much diff. From non-inverter for 8 hrs per days usage.

So the Chinese new year is coming soon,
can be have much more pocket money to buy new year thing.
Ha ha.

chunlianghere · 12-01-2011, 12:15 PM

sentosaubin wrote:

Do not be surprised if you didnt see saving on next bill, cause your meter reading might be estimated on the next reading..

can send the reading to them de ma..

than use the format from yr previous bill on excel to calculate lor..

Core2max · 13-01-2011, 09:49 AM

kimsim wrote:

Here I have some formula to calculate of monthly usage 8 per/hr x 30days.
Non-inverter Aircon system 3, power input watt : 1.935kw x 8 x 30 = 464.4 X 0.25cent per/kw = $116.10
inverter system 3 power input watt : 1.9Kw of Part load equal to 70% saving = 0.63kw x 8 x 30 = 151.2kw X 0.25 = $37.80 per months can be up to $78.30 per/mths so much diff. From non-inverter for 8 hrs per days usage.

Last time I saw aircon ads in the newspaper, from non-inverter to inverter 4 ticks can save about $800/year.

So average can save $66.67 per month.

sentosaubin · 13-01-2011, 03:09 PM

you can do that bro, but some HDB doesn't have a visible meter reading, thus unable to submit the reading

chunlianghere wrote:

can send the reading to them de ma..

than use the format from yr previous bill on excel to calculate lor..

Kahlan · 17-01-2011, 11:27 AM

Hi currently my flat has system 5 (which has broken down) need to get a new system. But as this is rental flat, don't intend to pay for high end aircon. Something reliable and good would do. Would appreciate if the bros here can recommend me a system and where to get it? Was thinking of going to Gain City, but read some adverse reviews. How's CoolServe?

kimsim · 17-01-2011, 12:41 PM

Hi, brother
Looks like your flat is rental unit, so how bout replace the 2nd. hand compressor or just repair it for your saving money to get a brand new set.
If the house owner once to take back the flat then you have to ask air cond contractor and take out whole unit.
That for normal ppl has facing it before.

Kahlan · 18-01-2011, 01:58 PM

kimsim wrote:

Hi, brother
Looks like your flat is rental unit, so how bout replace the 2nd. hand compressor or just repair it for your saving money to get a brand new set.
If the house owner once to take back the flat then you have to ask air cond contractor and take out whole unit.
That for normal ppl has facing it before.

Actually it's my house and i'm renting. Heard not worth repairing compressor. This is like second time i broke down. So thought get a new one once and for all.

kimsim · 18-01-2011, 02:33 PM

Oic ha ha that's fine.

Sure can be getting the new one.
Can be go for inverter type, if the rental operates long hours you also didn't feel too worry about The electricity.

Kahlan · 18-01-2011, 06:51 PM

kimsim wrote:

Oic ha ha that's fine.

Sure can be getting the new one.
Can be go for inverter type, if the rental operates long hours you also didn't feel too worry about The electricity.

ok any recommendations? what brand and what model? Should i get from Gain City? Heard some bad reviews.

kimsim · 18-01-2011, 10:51 PM

Kahlan wrote:

ok any recommendations? what brand and what model? Should i get from Gain City? Heard some bad reviews.

Can be try at coolserve.
Model for system 3 or 4 can go for Mitsubishi starmex inverter.
system 3 - 10x3 (3A28VA)
system 4 - 10x3+18 (4A28VA)
system 4 - 10x3+24 or 26 (4A38VA)

Kahlan · 19-01-2011, 09:04 AM

kimsim wrote:

Can be try at coolserve.
Model for system 3 or 4 can go for Mitsubishi starmex inverter.
system 3 - 10x3 (3A28VA)
system 4 - 10x3+18 (4A28VA)
system 4 - 10x3+24 or 26 (4A38VA)

Hi Kimsim,

Yup i had already called coolserve, but one downside is that they do not accept credit card payment/instalment.

Hence thinking of getting from Gain City etc.

In your opinion, not recommended?

sentosaubin · 19-01-2011, 10:33 AM

Actually, thouse Installment plan has priced in 5% to pay bank.
so, you are actually paying more to do installment stuff..
my view: not worth it..

Kahlan wrote:

Hi Kimsim,

Yup i had already called coolserve, but one downside is that they do not accept credit card payment/instalment.

Hence thinking of getting from Gain City etc.

In your opinion, not recommended?

HWZ Forums

Air conditioning - Any recommendations please??