Inverter aircons and other appliances. Huge savings on electricity bill?

Discussion in 'General OT' started by fanman, Jan 28, 2012.

  1. jetan

    jetan PhilMUG Addict Member

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    the 1.5hp inverter is around 38K just check on ansons cash and carry.
     
  2. Ina

    Ina Member

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    Carrier and fujidenzo also have window type inverter units.
     
  3. nethrow

    nethrow Active Member

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    I have no clue about aircon shopping, so here goes:

    We have a two-floor house, and we plan to put an aircon at the master's bedroom and dining/living area which is basically on the same side of the house. What exactly do we need to get? I've done initial research, it's called multi-split inverter units correct?

    Which brand would be the best?
     
  4. coolpix32

    coolpix32 Active Member

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    I considered this multi-split aircon and after inquiring, it would come out as more expensive than getting individual split-type aircon units. Though, this technology would be very helpful if you have limited outdoor space to install multiple outdoor units. Another item to consider is that if the outdoor unit breaks down, no aircon in all indoor units.



     
  5. papajamba

    papajamba Member

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  6. amboy

    amboy Member

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    IMHO it's better to have individual split type aircons on each area. the problem with multi split type inverter aircons is that should your outdoor unit malfunction or need repairs, all your indoor units will not work. at least with individual split type units, if one unit is in need of repairs then the other aircon unit is still working.
     
  7. nethrow

    nethrow Active Member

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    Thanks for the inputs; I inquired with the different appliance stores and indeed that is the most common drawback that they've been telling me. Cheers!
     
  8. yoh_hectic

    yoh_hectic PhilMUG Addict Member

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    I honestly would prefer multiple split so the operating noise will be at one location. Sadly power ratings of these models tend not to equal dedicated splits.
     
  9. yoh_hectic

    yoh_hectic PhilMUG Addict Member

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    When does Inverter do not make sense?
     
  10. emsy

    emsy Active Member

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    can anyone recommend aircon cleaning service...I'm in QC. Thank you.
     
  11. yoh_hectic

    yoh_hectic PhilMUG Addict Member

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    A bit off topic but has anyone upgraded to an inverter or direct drum washing machines whether top loading or front loading from a conventonal one?

    How is the terms of power consumption?

    If it has broken down how bad was the repair bill?

    Going back to ACs I just saw this indoor unit by LG called ARTCOOL being introduced abroad.

    Does not look like a white hotdog, which is a good thing.

    [​IMG]
     
    #251 yoh_hectic, Jul 7, 2015
    Last edited: Jul 8, 2015
  12. yoh_hectic

    yoh_hectic PhilMUG Addict Member

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    For those curious

    I am upgrading the following rooms from these window ACs to inverter split ACs.

    17sqm
    Old: 2.0hp Panasonic CW-XC184EPH
    -- EER 10.5 Kj/h.W
    New: 2.0hp LG HS-18ISM
    -- EER 13.9 Kj/h.W

    17sqm
    Old: 2.0hp Carrier WCARP019EA
    -- EER 10.0 Kj/h.W
    New: 2.0hp LG HS-18ISM
    -- EER 13.9 Kj/h.W

    28sqm
    Old: 1.5hp Condura CQSRM120BA*
    -- EER ?
    New: 2.5hp LG HS-24ISM
    -- EER 13.8 Kj/h.W

    >28sqm
    Old: 2.0hp Panasonic CW-SC184EPH
    -- EER 10.6 Kj/h.W
    New: None, guest room


    *Note:
    - Yes, this is a 1.5hp window AC for a 28sqm room that used by 2 occupants and a CRT TV then became 1 occupant and LCD TV.
    - I think this 1.5hp window AC used to be in the >28sqm guest room that was extended from its <17sqm original size.
    - Per .XLS file from spmo.upd.edu.ph the earliest mention of the model is in 1996.
    - No EER mentioned on the Excel file but my bet is it's less than 9.0 Kj/h.W.
     
    #252 yoh_hectic, Jul 9, 2015
    Last edited: Jul 9, 2015
  13. yoh_hectic

    yoh_hectic PhilMUG Addict Member

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    I honestly cannot sleep.

    My worry is that I underloaded the ACs I got for the rooms. I also worry that I will be paying more on my power bill. :(

    17sqm
    - East facing window that has tint and blackout curtains
    - Cement walls all around
    - 2.5m ceiling
    - Top floor
    - Wooden floor and ceiling
    - Two wooden doors
    - One person
    - One desktop with LED display
    -- 2.0hp LG HS-18ISM
    --- EER 13.9 Kj/h.W
    --- Cooling capacity of 19,438 Kj/h
    (Non-inverter AC would be 1.0 to 1.5hp for 17sqm)


    17sqm
    - East facing window that has tint and blackout curtains
    - South facing window that has tint and blackout curtains
    - Cement walls all around
    - 2.5m ceiling
    - Top floor
    - Wooden floor and ceiling
    - Two wooden doors
    - One person
    - One desktop with LED display
    -- 2.0hp LG HS-18ISM
    --- EER 13.9 Kj/h.W
    --- Cooling capacity of 19,438 Kj/h
    (Non-inverter AC would be 1.0 to 1.5hp for 17sqm)

    28sqm
    - East facing window that has tint and blackout curtains
    - South facing window that has tint and blackout curtains
    - Cement walls all around
    - 2.5m ceiling
    - Top floor
    - Wooden floor and ceiling
    - Two wooden doors
    - One person
    - One 40-inch LCD HDTV
    -- 2.5hp LG HS-24ISM
    --- EER 13.78 Kj/h.W
    --- Cooling capacity of 22,317 Kj/h
    (Non-inverter AC would be 1.5 to 2.0hp for 28sqm)
     
  14. yoh_hectic

    yoh_hectic PhilMUG Addict Member

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    Since reading the 0.5hp increase allowance for inverter ACs I wondered why this was a Philippine-specific rule. I say this because I cannot find any non-Philippine reference on this. The Malaysians I asked on a forum never heard of it. India's "Consumer Voice" magazine does not mention this either.

    I think this started with older or some inverter AC models that did not have a rapid cooling function like LG's "Jet Cool". This feature I have.

    It's something I did not expect so I am half disappointed

    I talked to the surveyor and he said 1.5hp inverter can cool 17sqm but countered the extra 0.5hp would give give me the adequate overhead when days become warmer and my power consumption would be better in the long run with the extra leg room. I hope he's right or else I just bought extra performance that i will never or rarely use.

    It is also possible that is that they are compensating for poorly insulated rooms to avoid complaints from unhappy customers. To which I cannot blame them for doing so.

    Or they just wanted to push models that are slow sellers or gave them a better margin per unit sold.

    In future purchases I suggest those buying to read carefully the inverter ac they are eyeing for rapid cooling functionalities like LG's "Jet Cool". Other brand owners should see and share what it is named with their units.

    I knew this function was present in LG ACs but under the name of "Himalayan Cool" for the South Asian market but seeming the functionality wasn't named in any PH specific product I didn't bother looking for it. Renaming the function from one market to the next may make it better understood in different cultures but it is confusing leading to wrong purchases. Bad move LG.
     
    SpydeR_AR likes this.
  15. JayShawn

    JayShawn Member

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    anybody have any experience with kolin window type inverter units? are they comparable to the split type inverters in terms of efficiency and power consumption and savings?

    i am in the market for a new AC unit as my trusty carrier 1.5HP unit is showing signs of age with more frequent cleaning intervals than before. i wanted a carrier window type inverter and found the costs prohibitive at more than P40K for a 1HP unit. found a couple of 2HP split type inverters around the P30K range from many brands but the problem is too much hassle on closing up the old window type hole and i'd spend a lot in extra piping i'd be around or even more than a 1.5HP carrier window type.

    was choosing between a new carrier 1.5HP non inverter or a 2HP LG split type inverter when i chanced upon an ad for the kolin 1.5HP window type interter at around P27K. now i have a 3rd option.

    so my questions are, is kolin good? is their window type inverter AC comparable to split types, or is it still new and more of a marketing gimmick? do i really have to add half a HP for inverters? 1.5HP cools my room very well.

    sorry for the lengthy post. tips and advice would be really appreciated.
     
  16. yoh_hectic

    yoh_hectic PhilMUG Addict Member

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    The day I've been dreading has arrived. My energy bill has arrived.

    Last month

    Bill Period
    - 07 Jun 2015 to 06 July 2015
    Total KWH
    - 1974
    Total current Amount
    P21,191.52

    This month

    Bill Period
    - 07 Jul 2015 to 06 Aug 2015
    Total KWH
    - 1156
    Total current Amount
    P12,005.67

    After 12 months of foot dragging discussions I upgraded 3 rooms from window non-inverter AC that were on average 10+ years to a 2015 model spit inverter AC.

    These are the changes that were made with timeline

    Monday, July 6
    - Energy bill arrives

    Saturday, July 11
    - Room A: 28sqm; ideally can be handled by 2.0hp
    -- Old: 1.5hp Condura CQSRM120BA
    --- EER 9.0 Kj/h.W*
    -- New: 2.5hp LG HS-24ISM
    --- EER 13.78 Kj/h.W

    Monday July 13
    - Room B: 17sqm; ideally can be handled by 1.5hp
    -- Old: 2.0hp Carrier WCARP019EA
    --- EER 10.0 Kj/h.W
    -- New: 2.0hp LG HS-18ISM
    --- EER 13.9 Kj/h.W

    Monday July 13
    - Room C: 17sqm; ideally can be handled by 1.5hp
    -- Old: 2.0hp Panasonic CW-XC184EPH
    --- EER 10.5 Kj/h.W
    -- New: 2.0hp LG HS-18ISM
    --- EER 13.9 Kj/h.W

    Thursday, Aug 6
    - Energy bill arrives

    *Best guess

    ========

    Below is the stats of each room

    Room A:
    - East facing window that has tint and blackout curtains
    - South facing window that has tint and blackout curtains
    - Cement walls all around
    - 2.5m ceiling
    - Top floor
    - Wooden floor and ceiling
    - Two wooden doors
    - One person
    - One 40-inch LCD HDTV
    - 8-12 hr per day for 6 days a week

    Room B:
    - East facing window that has tint and blackout curtains
    - South facing window that has tint and blackout curtains
    - Cement walls all around
    - 2.5m ceiling
    - Top floor
    - Wooden floor and ceiling
    - Two wooden doors
    - One person
    - One desktop with LED display
    - 8-12 hr per day for 6 days a week

    Room C:
    - East facing window that has tint and blackout curtains
    - Cement walls all around
    - 2.5m ceiling
    - Top floor
    - Wooden floor and ceiling
    - Two wooden doors
    - One person
    - One desktop with LED display
    - 8-12 hr per day for 6 days a week

    Conclusion:

    - We should have gone inverter 15 years ago in 2000.
    - Even if your inverter AC is overpowered it will still be more energy efficiently than a conventional AC.
    - Although overpowered inverter ACs do not increase power consumption and gives flexibility in more rapid cooling it is NOT a must unless you cool your room to say less than 20C.
    - Inverter everything you use often like the refrigerator, AC and washing machine.
    - Next project inverter front loading washing machine and LED lighting with 110 lumens per watt or better energy efficiency.
    - Target is below P5,000 bill.
     
  17. coolpix32

    coolpix32 Active Member

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    This is very helpful information. Thanks for sharing your experience.

    So just to clarify, there is no need to increase HP by 0.5? I've also wondered about this and my research also didn't point me to this.



     
  18. yoh_hectic

    yoh_hectic PhilMUG Addict Member

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    It depends on a number of factors.

    When we built the house it was not tipid in terms of build quality or insulation.

    My preferred air temp is 24-25C.

    When the AC starts the doors and windows stay closed until it shuts down. If ever it opens 1x only.

    The 0.5hp allowance has more to do with the AC habits of other people and possible lack of rapid cooling feature in earlier inverter AC models.

    Other people I've talked to prefer their AC to be 16-18C.

    I got the LG for these reasons

    - Brand is EPA's EnergyStar recognized
    - Brand is India's Consumer Voice recognized
    - Model has the highest EER number in their respective horsepower class in the Philippines
    - No bad end user feedback on any forum local forum I've read
    - Model has the lowest indoor operating noise at 19dB in the Philippines

    My preferred brands are LG, Daikin and Panasonic largely because of the first 2 reasons.

    Before the LG we bought a Panasonic. Never broke down and it's nearly a decade old.

    Didn't go with Panasonic because EER and indoor operating noise wasn't top end.

    Considering AC economic life is 12-15 years then you should really get the best.
     
    coolpix32 likes this.
  19. p.pipster

    p.pipster PhilMUG Addict Member

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    Ok. Sold. Time to save up for inverter units.
     
  20. oloc

    oloc Member

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    so far i'm happy with my Mitsubishi Mr. Slim 1.5HP split type.
    it cools our 21sqm room in just few minutes.
    the kids are using it for 2hours on their afternoon nap, and around 4hours at night.
    i had it installed last july 1 and our bill for july increased by only 400 pesos compared to previous bill.
     

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