![]() | #1726 | |
Senior - BHPian | ![]() Quote:
An interesting article Understanding heat pumps | |
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![]() | #1727 |
Distinguished - BHPian ![]() ![]() Join Date: Jun 2007 Location: Chennai
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| ![]() The combined AC/heater will spread the warm air around the room, too, just as it would the cold. The electric heater will work largely convection... the heat should reach you eventually. I'm not saying they don't work, my mum had one in her UK house, they do heat a whole room, but one needs patience. . Last edited by Thad E Ginathom : 2nd May 2011 at 19:52. Reason: I never write in SMS, even on a phone. Unfortunately, sometimes my keyboard does! |
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![]() | #1728 | |
Senior - BHPian ![]() | ![]() Quote:
As for the option of heat pump vs oil radiators, I concur with what Aroy and TEG have posted. The heat pump unit is the way to go. The Daikin heat pump machines can work from -10 deg C to 18 deg C. As I recall, during last winters all of the oil radiators were struggling when the mercury dipped to single digits. Coming to the query regarding performance of Lexus vs Delonghi (though this is now irrelevant), yes the Ds are far superior than the Ls. The 9 fin Ds were able to achieve and hold the desired heat levels in my bedroom far better than the 11 finned L (better thermister control). The L took longer to get there(this was a surprise) and once it did it kept on going and I had to get up time and again to adjust the temp control to either lower or raise the set levels. With the Ds once you set the knob (manual control only) one is comfortable the entire night. The heat pump unit will certainly be able to give you much better control. Coming to the water heaters, since you just moved to Dilli (assumption based on the statement in your avatar) and if you are yet to buy water heaters for the next winters then I have a recommendation. In case these have been bought or already exist then just ignore that statement. I too did a little more research on the offerings from Daikin and per the literature on their web site I have observed that The new models equipped with the R410 gas (such as FTXS50FVMA) have their compressors rated at 17000Btu/hr. You may want to consider the next higher model rated at 20000 Btu/hr (FTXS60FVM). This 17K and 20K Btu/hr business will be of consideration only during the period when the mercury in the afternoons goes to 44degC and beyond for sustained periods. Currently only the 'G' series models equipped with the older R22 gas have compressors rated at 18000Btu. These older models however are neither available as inverters nor with heat pumps. Do note the idea is not to create confusion but only to share this information, to help make a better informed decision. | |
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![]() | #1729 |
Senior - BHPian ![]() Join Date: Dec 2007 Location: Gurugram
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| ![]() @khoj: Most probably the 18000 (R22) and 17000 (R410) btu compressors are internally almost identical. They may only differ in the material (corrosion resistance) R410 obiously requires a larger pumped volume and/or a slightly higher working pressure hence the reduced rating. |
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![]() | #1730 |
Senior - BHPian ![]() | ![]() @sgiitk, Yes Sir, you are correct. The R410 filled systems do have a higher operating pressure and piping/tubing and the capillaries etc are of a better gauge than those for the R22 systems. I happened to speak with a Hitachi company technician and per him on the compressors too walls are thicker for the new gas. Interestingly per him the R410 charged 17000 Btu rated units are as efficient as the 18000 Btu rated ones with the old R22 gas!! Though he did not have an explanation for the same, he was insistant that the new machines are achieving desired grill temperatures in as much time as the old ones !! Is this possible? Last edited by khoj : 3rd May 2011 at 18:10. |
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![]() | #1731 | |
Senior - BHPian | ![]() Quote:
A word of caution. As newer gasses require higher pressure, it is better to use only reputed installers, who will use thicker gauge tubes and higher pressure connectors, with teflon tape at every joint. The run of the mill technicians will use older thinner gauge tubes and inferior jointing to reduce costs, but leave you with a potential leak prone installation. That may be one of the reasons why Daikin at times refuses to honour warranty claims if not installed by their authorised technicians. | |
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![]() | #1732 |
BHPian ![]() Join Date: Aug 2007 Location: Mohali
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| ![]() Suggest an AC preferably 1.5 ton. Has to a window installation.I need to buy two unit, one of the room is directly exposed to sun for a greater part of the day, other room sees the shades for most of the day. |
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![]() | #1733 | ||
BHPian Join Date: Oct 2004 Location: New Delhi
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thanks Quote:
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![]() | #1734 |
Senior - BHPian ![]() | ![]()
Hitachi 5-star units if Budget permits. Otherwise Lg has a good range too. |
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![]() | #1735 |
Senior - BHPian ![]() Join Date: Dec 2007 Location: Gurugram
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| ![]() @ARoy; @Khoj; I think the moral of the whole thing is that we should ignore less that 10% variations in the ratings. I will say even more so, since the exact installation and charging can easily cause this sort of variation. |
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![]() | #1736 |
BHPian ![]() | ![]() Mumbai folks please let me know, if it is OK to buy the ac's from ALFA, Andheri. they have considerable price difference on O generals and Hitachi, only that there is no bill and warranty from the seller or the company as all are imported. I am looking to buy 3, (two 1 ton and one 1.5 ton all split) cheers!! |
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![]() | #1737 |
BHPian Join Date: Sep 2006 Location: Was PB, DL, HR , KA and Now GJ-1
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You can look at the Whirlpool range. Got a 3 star Whirlpool last year and it is installed in room directly exposed to sun. The AC is doing it's job brilliantly and and it is less noisy than my 2 yr old samsung window unit. |
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![]() | #1738 | |
BHPian ![]() | ![]() Quote:
Buying Ac's ALFA is not wrong but buying them without bill and warranty is not worth if your buying three Ac's that means you gonna invest a good sum of money. I will say better stick the one's with bill and warranty as you get 1 year warranty on unit and 5 years warranty on compressor. Why regret later if something goes kaput and nothing is covered in warranty. | |
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![]() | #1739 | |
Senior - BHPian | ![]() Quote:
EDIT : I would have gone ahead if the AC were Window types and price attractive, but as testing Splits without installation is not possible for a layman, it is better to avoid the deal. Last edited by Aroy : 4th May 2011 at 11:27. | |
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![]() | #1740 |
BHPian ![]() Join Date: Aug 2007 Location: Mohali
Posts: 701
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| ![]() I have kept aside 22k for the AC purchase.I fail to understand the price variations and star ratings. |
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