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-   -   Mini Split Regular vs Inverter? (http://www.playa.info/playa-del-carmen-forum/77066-mini-split-regular-vs-inverter.html)

teebee 09-06-2017 07:13 AM

Mini Split Regular vs Inverter?
 
I just got my power bill from my wife's last visit to Playa and for the 10 days that she was down she used about 194kw. Which seems like a ton. We have LED lights and nothing that really draws much power. (Gas stove, gas dryer, gas water heater)

Everything is quite new and modern except our 10-12 year old mini split system I know it was on overnight so it was comfortable for sleeping and possibly used just to chill the place for a few minutes here and there. I checked the fridge and the manufacturer suggests it uses about 1.5kw a day. So no big deal.

I believe she only used the washer/dryer once so it was the electricity to spin the drums. So even if we call all that and the fridge 30kw including the lights there is still 160ish kw in AC. (16kw a day if it was on for 8 hours that's 2kw an hour)

So really my question is has anyone swapped from an old style mini split to a inverter style AC unit and seen any difference in power consumption? All the manufacturers are suggesting savings but before I invest in such a system I'd like to know if I'm just wasting my money of if there is actually a return on investment. I want to do everything in my power to stay away from the dreaded DAC. If my wife uses 194kw in 10 days when we're down for longer I'm as good as doomed...

absoluteAL 09-06-2017 09:19 AM

I have had installed two new mini split LG inverter A.C. units recently.
LG makes dual inverter mini splits and also about the highest rated SEER unit at 25.5. SEER rating (a measure of a unit's efficiency) (https://en.wikipedia.org/wiki/Season...ficiency_ratio).
With that said, it would be hard to tell you about my electrical usage because each of my units are now on separate CFE meters. This lessens the chance of ever getting into the DAC rate. I have 6 CFE meters (6 separate bills) for my unit but am not sure that CFE still allows this.
I would think your decision could be based on how long you plan on keeping your unit, your A.C. usage and whether or not you rent it out.
And your 10 to 12 year old unit would not be very energy efficient, IMO. Time to replace it.

PlayadelSolDos 09-06-2017 09:29 AM

I recently bought one and have had it long enough to run through on billing cycle. The energy use was down from last year even though we ran it a little more but the bill was almost the same as last year due to the price increase this year. I am in the dreaded zone and bought it to get us out. Seeing as we are now out of the hotter months and we were under the kw for the last period, I hope to make it out of hell in 2 more cycles.

AZGonzo 09-06-2017 12:39 PM

We updated all the AC Units in our place immediately. We figured newer was better (and more dependable). Our first electric bill was under the upcharge but we were only here for a few weeks out of cycle so who knows.

ryberg 09-06-2017 03:13 PM

Quote:

Originally Posted by teebee (Post 2192539)
So really my question is has anyone swapped from an old style mini split to a inverter style AC unit and seen any difference in power consumption?

A friend of ours says yes, emphatically. We have not yet had sufficient time to try this out and confirm that (or not) firsthand, however.

teebee 09-07-2017 06:40 PM

Thanks for you feedback everyone. It sounds like I'm now in the market for new AC units.

If I'm springing for new inverter units I'm definitely looking at quality units. From what I've been reading both Mitsubishi and LG both have very high SEER units. I see Home Depot has LG but near as I can tell they don't have any of the multi zone units. I believe (but certainly could be proven wrong) I believe my current Mirage system is a single outdoor unit and 3 indoor zones. I have limited out door space on the roof for the condenser. Where would I shop for a multi zone unit? I assume a specialist shop? Anyone worth suggesting?

Thanks in advance.

steve71 09-07-2017 07:58 PM

Quote:

Originally Posted by teebee (Post 2192539)
I just got my power bill from my wife's last visit to Playa and for the 10 days that she was down she used about 194kw. Which seems like a ton. We have LED lights and nothing that really draws much power. (Gas stove, gas dryer, gas water heater)

Everything is quite new and modern except our 10-12 year old mini split system I know it was on overnight so it was comfortable for sleeping and possibly used just to chill the place for a few minutes here and there. I checked the fridge and the manufacturer suggests it uses about 1.5kw a day. So no big deal.

I believe she only used the washer/dryer once so it was the electricity to spin the drums. So even if we call all that and the fridge 30kw including the lights there is still 160ish kw in AC. (16kw a day if it was on for 8 hours that's 2kw an hour)

So really my question is has anyone swapped from an old style mini split to a inverter style AC unit and seen any difference in power consumption? All the manufacturers are suggesting savings but before I invest in such a system I'd like to know if I'm just wasting my money of if there is actually a return on investment. I want to do everything in my power to stay away from the dreaded DAC. If my wife uses 194kw in 10 days when we're down for longer I'm as good as doomed...

Doomed???!!! 194 kw for 10 days with ac!!!! What else do you want? 194kw is between 150 and 250 Pesos, that's all. It doesn't get much cheaper than that.

absoluteAL 09-07-2017 08:10 PM

Quote:

Originally Posted by teebee (Post 2192911)
Thanks for you feedback everyone. It sounds like I'm now in the market for new AC units.

If I'm springing for new inverter units I'm definitely looking at quality units. From what I've been reading both Mitsubishi and LG both have very high SEER units. I see Home Depot has LG but near as I can tell they don't have any of the multi zone units. I believe (but certainly could be proven wrong) I believe my current Mirage system is a single outdoor unit and 3 indoor zones. I have limited out door space on the roof for the condenser. Where would I shop for a multi zone unit? I assume a specialist shop? Anyone worth suggesting?

Thanks in advance.

You can try Perssa: PERSSA
Located on Juarez by calle 45 (north side of Juarez).
Scroll down to Air Conditioner/ Multisplit or Divided

teebee 09-07-2017 08:17 PM

Quote:

Originally Posted by steve71 (Post 2192919)
Doomed???!!! 194 kw for 10 days with ac!!!! What else do you want? 194kw is between 150 and 250 Pesos, that's all. It doesn't get much cheaper than that.


Agreed. but that averages out to 600kw a month and thats only running a single bedroom AC unit. if we have guests it might be up 750kw a month in DAC rates so 4000 Pesos a month for power. I'd prefer to try and keep out of DAC if at all possible...

steve71 09-07-2017 08:35 PM

Quote:

Originally Posted by teebee (Post 2192922)
Agreed. but that averages out to 600kw a month and thats only running a single bedroom AC unit. if we have guests it might be up 750kw a month in DAC rates so 4000 Pesos a month for power. I'd prefer to try and keep out of DAC if at all possible...


Like I said, it won't get much cheaper than that, even with new ac's. Not much you can do, the only thing is not using ac's. If you change your old units to new ones, the savings won't change a lot, that's for sure. Trust me. I changed our 3 8 year old ac's 5 months ago because they just didn't work properly anymore. The difference in the power bill was 256 Pesos.

Opatije 09-11-2017 11:23 AM

I have yet to see any significant savings after installing Inverter unit. If you use a lot (and I mean A LOT) then you'll see the reduction on your bill. The technology does support the notion of "heavy use". However, for an average user the difference is negligible.

Quote:

Originally Posted by steve71 (Post 2192926)
Like I said, it won't get much cheaper than that, even with new ac's. Not much you can do, the only thing is not using ac's. If you change your old units to new ones, the savings won't change a lot, that's for sure. Trust me. I changed our 3 8 year old ac's 5 months ago because they just didn't work properly anymore. The difference in the power bill was 256 Pesos.


preya001 09-12-2017 09:33 PM

Quote:

Originally Posted by steve71 (Post 2192926)
Like I said, it won't get much cheaper than that, even with new ac's. Not much you can do, the only thing is not using ac's. If you change your old units to new ones, the savings won't change a lot, that's for sure. Trust me. I changed our 3 8 year old ac's 5 months ago because they just didn't work properly anymore. The difference in the power bill was 256 Pesos.

yes, but that 256 pesos is meaningless without knowing your usage, and how much the government paid on your behalf.

steve71 09-13-2017 11:50 AM

Quote:

Originally Posted by preya001 (Post 2193371)
yes, but that 256 pesos is meaningless without knowing your usage, and how much the government paid on your behalf.


Jesus!!! It's not meaningless. Do you want me to write down the whole calculation on here or what? If I write it it means that I already did that.
However, my point is that the difference is not very significant!

rob mackay 09-13-2017 03:21 PM

and to think that when my power bill went from 45 to almost 60 pesos per month,,,i was upset.....

pays to unplug the fridge when you go to the beach;)

Desperado 09-22-2017 06:48 PM

600 kWh is my normal consumption in a summer month in Toronto, with 2000 ft2 townhouse, 1 person, so your consumption seems reasonable. AC is the culprit.


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