Browse Forums Heating, Cooling & Insulation 1 Feb 03, 2009 10:16 am Hello,
Hoping someone can help me fairly quickly with this one. We're planning on putting ducted air con in and need to book something in asap. I'm a bit unsure of what we need and what option would be money better spent. We've shopped around, got a few quotes for a few different brands and we've narrowed it down to these ones: Fujitsu ART54LUAK 14.5kw 6 Zones 8 outlets $10,700 Fujitsu ART45LK 12.5kw 6 zones 8 outlets $10,090 Daikin FDYQ160 15kw 6 zones 8 outlets $11,850 Daikin FDYQ125K 12.5kw 6 zones 9 outlets $11,180 There's not much difference between the prices, but we're obviously not interested in spending any money we don't need to! I know Daikin are 'the' brand - I don't need to be told that - but is it worth the extra money as far as after sales service/noise/running costs etc? Also, I'm not sure why different places suggest the different sized unit for the same house. Do we really need 15kw for our place, or will the 12.5kw suffice? And (dumb question) what difference will that make? http://i470.photobucket.com/albums/rr64/JellyLegs01/HousePlan.jpg Cheers. Re: Help needed choosing the right air con 2Feb 19, 2009 6:55 pm Please let us all know how you go! Good Luck!
Re: Help needed choosing the right air con 3Feb 19, 2009 7:41 pm Hey BoatMan - Does it matter if you run the AC as an add on through the heating? Which is better, together or seperate? 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: Help needed choosing the right air con 4Feb 19, 2009 10:27 pm ill let someone else help you out with the size, ive got a 4 bedroom, plus study, plus activity room plus 2 living area's and have gone for the 14.5kw fujitsu
ive heard a few off stories about the daikin's making a loud racket, i had the choice between the 2 and went fujitsu most things made in australia are sub-par compared to out of japan, which now makes me think, if daikin is australian made i might swap back to daikin for that fact alone to support australian gear.... is daikin all aussie? Blog - http://snakedr.blogspot.com/ Build Thread - viewtopic.php?f=31&t=12084&p=307406#p307406 Status - PCI 15/10. Things nearly done. Re: Help needed choosing the right air con 5Feb 20, 2009 12:12 am Lisanne, i presume you mean running air conditioning through ducted gas heating ducts? I would basically recommend fully ducted reverse cycle as a standard system. It cools and also heats. Also, the heating is more powerful than the cooling capacity (e.g. a unit rated at 15Kw cooling can usually heat to 16.5Kw). They are a great way to heat a house. I would always go ducted reverse cycle all the way. Costs a bit upfront but many years of comfort. As i have said before, if i had a dollar for every person who wanted to upgrade their system to reverse cycle at a later date, i would be a rich man.
Re: Help needed choosing the right air con 6Feb 20, 2009 7:10 am TheBoatMan Lisanne, i presume you mean running air conditioning through ducted gas heating ducts? I would basically recommend fully ducted reverse cycle as a standard system. It cools and also heats. Also, the heating is more powerful than the cooling capacity (e.g. a unit rated at 15Kw cooling can usually heat to 16.5Kw). They are a great way to heat a house. I would always go ducted reverse cycle all the way. Costs a bit upfront but many years of comfort. As i have said before, if i had a dollar for every person who wanted to upgrade their system to reverse cycle at a later date, i would be a rich man. http://www.airconditioningexplained.com Thanks Boatman, unfortunately the heater is being installed by the builders and can't be changed Also, with the reverse cycle ones, are they more expensive to run as a heater than gas ducted heating? So, seeing as I can't change my ducted gas heating unit, am I better off getting an add on or a separate unit in separate ducts? 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: Help needed choosing the right air con 7Feb 20, 2009 9:50 am You 'could' retrofit the reverse cycle air con to the ducted gas they put in. Problems are that it can be a bit *******, ducts wrong sizes, wrong sort of grilles etc. I would not recommend it. Would also be a a bit of a shame to put a whole new system in as it would cost so much. The whole thing is a bit of a pickle. Have you considered a few wall splits? In regards to heating, i have heard that reverse cycle is the most cost effective way to run a house (running costs cheaper than ducted gas). I am not sure how correct this is as we don't need much ducted gas over here in Perth! Re: Help needed choosing the right air con 8Feb 20, 2009 10:15 am Just a point - effeciency is the rate at which one form of energy is transfered into another.
It doesnt translate to cost. GAS i believe is much cheaper than electricity to buy. So GAS is usually cheaper to run. Especially if you want to heat large areas. Re: Help needed choosing the right air con 9Feb 20, 2009 8:32 pm Dh went out today to see what info he could find out. I prefer evaporative aircon ( ok I dislike refridgerative aircon a lot. I will still be opening windows. tough! Don't even ask me to consider a split system. I'd rather suffer the heat. ) but we've noticed the preference locally seems to be refrigerative and that perhaps since we are no longer living near the coast this might be something I might have to "suck it up and get over" ( my words not Dh's) . Our local people recommended fujisu over daiken they said the daiken unit worked abut about 2 k more for something that wasn't a better system.
We are looking at paying around 12k for the largest domestic type unit available. This is for one with 6 zones. Edit: we went to visit another aircon place today ( sat the 21st)that also sold fujisu and several other brands. the guy told use that warranty on the fujisu and the daiken were identical. he also said there wasn't a lot of difference( only slightly in quality between the top 5 aircon brands. His top was fujisu( he didn't sell daikens) we will be checking out daikens as well within the enxt few weeks. The fujisu's also come with a thichker than the min standard insulation on their ducting. research continues. Re: Help needed choosing the right air con 10Feb 21, 2009 9:00 pm Lisa are you in melb? if so the gas ducted heater is much better for you with add on airconditioning rather than reverse cycle gas ducted heating is cheaper to run and heats your house a lot quicker other states like perth and sydney you will find they go the reverse cycle because their climate isn't as cold as melbournes winters. How do you remove one of these ceiling air con vents? And is it possible to disconnect the duct joined to the vent from inside the house, without going into the roof cavity? 0 5944 Hi all, sorting out the ducted air con for a 350sqm double story house. Does this placement sound reasonable to you? Also, I plan to have 6 zones I think. Living room… 0 0 Hi all, sorting out the ducted air con for a 350sqm double story house. I think i plan to have 6 zones I think. Living room (mainly for entertainment so not used often),… 0 0 |