Browse Forums Heating, Cooling & Insulation 1 Jan 01, 2013 8:58 pm Hi all Just wanted to get some info in regards to a new build were in Perth WA and weighing up the running costs of 1. Reverse cycle ducted unit 2. Evap ducted unit with separate gas ducted heating. Love to hear your thoughts Building the "Avoca" by Dale Alcock Re: Reverse cycle vs evap ducted with gas duct Perth area 3Jan 02, 2013 12:28 am Hi cc101 We were told by the a/c sales rep that evap is better as far as running costs being only being around .20c per hour to run compared to reverse cycle being $2-$3 per hour to run? I dont know how true that is? That seems to be a massive difference tho? Our current evap is around 15 years old and it's not the best especially the heat wave we've just had here in Perth over Xmas break but technology has changed since then. So many decisions thanks for your response Building the "Avoca" by Dale Alcock Re: Reverse cycle vs evap ducted with gas duct Perth area 4Jan 02, 2013 2:01 am Hey busy that's what we've been told too ... But living in a house atm with evap I would never get it .... It's in right now I'm in bed and melting still it won't even cool our room .... It's like having a bloomin fan on that's pointed away from me ... LOL ok rant over .... Were looking around for quotes on ducted refrigerated ... Got one so far at 13500...and thats with zones ... So don't always have to have it cooling all rooms 2 Re: Reverse cycle vs evap ducted with gas duct Perth area 5Jan 02, 2013 6:48 am R/C works well in temps above about 5 and below 45 I'd say. I've been told Evap systems have issues over 35. So I'd look at the temps in your area. They work differently. Evap is probably cheaper and many swear by them. I have friends who have gone both ways - in a/c terms ... If you have summer temps in the high 30s I'd be wary of Evap. But thats just me. A few friends went for gas heating and Evap cooling. Gas heating was really good - but the cooling was no-where near as good as R/C IMO. Re: Reverse cycle vs evap ducted with gas duct Perth area 6Jan 02, 2013 6:51 am Sorry for two posts - but while money is a natural issue - you have to also look at what you want from the system. I'd rather pay 10-15% more and get what I want - ie cold air in summer time. Re: Reverse cycle vs evap ducted with gas duct Perth area 7Jan 02, 2013 2:32 pm Hi MelQ & saint mike we currently have an evap system in our house now and we find in the 40o weather it is pretty useless and I totally get what you say MelQ about laying in bed sweltering with hot air blowing on you we thought since having an older breezeair evap it was just old but the dampness/muggy air isn't fun! In our promotion with Dales they offer a Daikin reverse cycle ducted system worth around $10,700 so not a bad price really? Building the "Avoca" by Dale Alcock Re: Reverse cycle vs evap ducted with gas duct Perth area 8Jan 02, 2013 2:44 pm I live in a house thats got a 'new' evap (4 years old). This heat wave we have just had has just proven to me Im not going near it with our build. You have to keep your doors/windows open for it to be effective. Who leaves doors/windows open at night? Course you want it on at night so you can sleep...so it runs all day, then runs all night - in the morning the whole house feels damp, wooden floors feel sticky. In 35 + heat all its good for is blowing like a fan if you stand under a vent. I know price / economy is a big factor but I'll be spending the extra to keep cool by having split systems - small ones in bedroom that heat as well as cool and big grunty one in main living area. Sometimes you just cant put a price on comfort...I plan to save money in other areas of my house instead... Good luck! PS: you should be changing your filters every year for it to be effective Im told... Lets do it on Facebook... https://www.facebook.com/pages/First-Ho ... 553?ref=hl Building a Loft Home with a rear balcony... http://www.lofthomes.com.au/ Re: Reverse cycle vs evap ducted with gas duct Perth area 9Jan 02, 2013 3:09 pm Having gone from a house with evap to one with R/C I would never ever consider evap again. In anything plus ~35 you have to crank the evap up to full speed to get anywhere near comfortable and you can't leave it on when you go out. The R/C has a lot more control and keeps our house at a comfortable 24 no problem and we can switch it on remotely so half an hour before coming home on it goes and no hot house to come home to Re: Reverse cycle vs evap ducted with gas duct Perth area 10Jan 03, 2013 1:20 am Hi Bucket75 & Althom Thank you both for your responses that has definitely made me think that maybe r/c maybe the way to go. I think if we closely monitor our usage and install ceiling fans in the bedrooms it may cut the power bill down abit? We will more than likely install rollershutters to help keep the heat out also Thanks guys & Happy New Year Building the "Avoca" by Dale Alcock Re: Reverse cycle vs evap ducted with gas duct Perth area 11Jan 03, 2013 10:53 am Yep, we have ceiling fans throughout, thick curtains and canvas blinds that come down at the start of summer. Set temp at 24 and the air con is on and off threoughout the day but rarely has to kick in for more than 2 hours at a time Re: Reverse cycle vs evap ducted with gas duct Perth area 12Jan 04, 2013 11:59 am I'd go the Daikin with zones. You can then have it on in the areas you like - and you will get cold air ... Is it around 15kw ? You do need the right size for the house. Re: Reverse cycle vs evap ducted with gas duct Perth area 13Jan 06, 2013 3:38 pm Althom, what sort of unit do you have? Saint Mike, I was only just told that I may need two units so I could operate the whole house all at the same time? I didn't know that r/c was a zoned unit. Thanks guys i appreciate all the info Building the "Avoca" by Dale Alcock Re: Reverse cycle vs evap ducted with gas duct Perth area 14Jan 06, 2013 4:13 pm Panasonic ex Ambienec Air. 3 zones - Bed 1, Kitchen, Dining, Living & Study, Beds 2 & 3 Have to check but I recall about 15Kw and we often have the entire house on Works a treat Re: Reverse cycle vs evap ducted with gas duct Perth area 15Jan 06, 2013 4:21 pm Reverse cycle all the way. We currently have a breeze air evap system and it is great (until it hits 35 degrees+). They are veryyyyy cheap on electricity but quite expensive with the water. We also have ducted gas and let me tell you don't be fooled into thinking they are cheap to run because they are outrageously expensive. The last two winters in this house we have chosen blankets and warm clothing as opposed to mega expensive gas bills. When we first moved in here we ran the heater a couple of hours a night and got a bill for 21 days usage (of which we were only living here 15) for $600. Obviously that included the connection fee of $40 or so??? But that gives you an indication. Busybusybusy also check your build thread, I have just replied about the RC aircon Dales is giving you for free. Fixed speed system instead of inverter real old technology. Building the Riva by Dale Alcock Homes. Follow our progress here: https://forum.homeone.com.au/viewtopic.php?t=57075 Re: Reverse cycle vs evap ducted with gas duct Perth area 16Jan 06, 2013 4:33 pm Hey Althom & MissEm I'm waiting for them to get back to me about the unit. So many decisions! Thanks for the info Althom I hear you on the evap unit with gas heating. We installed the ducted braemer gas in 2010 and I almost fainted with a $1,200 gas bill for 1 QTR!! We did have the heating on every morning and late night it was set from 6am-9am then would switch on again from 6pm-9pm the same day. Very expensive alright. We have our evap running today and even on a nice day like today it's sticky Building the "Avoca" by Dale Alcock Re: Reverse cycle vs evap ducted with gas duct Perth area 17Jan 06, 2013 4:43 pm Saint Mike I'd go the Daikin with zones. You can then have it on in the areas you like - and you will get cold air ... Is it around 15kw ? You do need the right size for the house. We upgraded our 'free' fixed speed RC to the equivalent Daikin inverter for $1500. 15kw, 11 outlets and 6 zones. Can't wait to get out of this evap!!!! Building the Riva by Dale Alcock Homes. Follow our progress here: https://forum.homeone.com.au/viewtopic.php?t=57075 Re: Reverse cycle vs evap ducted with gas duct Perth area 18Jan 06, 2013 4:47 pm MissEm Inverter uses less power is that right? There's always some sort of catch so you spend more money at per-start I'm starting to get at tad worried about all these upgrades so far were about 12k worth of changes and upgrades and still about to do our per-start :/ Building the "Avoca" by Dale Alcock Re: Reverse cycle vs evap ducted with gas duct Perth area 19Jan 06, 2013 5:01 pm busybusybusy MissEm Inverter uses less power is that right? There's always some sort of catch so you spend more money at per-start I'm starting to get at tad worried about all these upgrades so far were about 12k worth of changes and upgrades and still about to do our per-start :/ So we were told. Not only that, with the inverter you can change the fan speed how you like it or by requirement. The fixed speed unit is either off, or running flat out. I know what you mean - in total we spent about $35k on upgrades but most of this was in the contract prior to final final FINAL plans. I think we only spent $4k at prestart - changing cupboards to drawers, adding cupboards in laundry, upgrading toilets and some taps etc etc... All the real expensive stuff was put in prior - timber floors, Caesarstone, overhead cupboards etc etc There's ALOT of cool stuff in DA central and if we were flush with cash we could have easily spent $100k in there. EASY!! But we didnt find it that hard to be honest. Alot of it is not that practical just looks nice lol Building the Riva by Dale Alcock Homes. Follow our progress here: https://forum.homeone.com.au/viewtopic.php?t=57075 Re: Reverse cycle vs evap ducted with gas duct Perth area 20Jan 06, 2013 5:51 pm Thanks for the info on the a/c it's really good getting other opinions 35k your house must be gorgeous!!! Our block wasn't the cheapest but I'm pretty happy with DA's standard range it's pretty much upgrades compared to the smaller builders. Very excited to get started!!! 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