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Ducted aircon - noise, performance

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#1 Romeo Void

Posted 06 December 2019 - 09:27 AM

We're looking to get ducted air conditioning in the next couple of months. I was just wondering if any of you guys had bought recently and if you had any tips about what's a good performer, reliable and easy to use. Our previous home we had a Daikin and it's worked like a Trojan for 15 years, only recently one of the ceiling vents needed a part replace. However, that was 15 years ago and I guess things may have changed?

We also have to be careful of noise as we have a difficult neighbour who *will* complain regardless so we need to make sure it's within guidelines.

Thanks in advance :)

#2 SeaPrincess

Posted 06 December 2019 - 09:34 AM

We have a Daikin, which was installed when the house was built 10 years ago (not by us). The motor is outside our bathroom and it’s noisy with the windows open, but our neighbours are close on that side and have never said anything.

#3 CallMeFeral

Posted 06 December 2019 - 10:01 AM

This may not be of any interest, but I've been on a number of green forums lately related to us building a house, and apparently ducting is a very inefficient form of heating/cooling. They recommend split and multisplit systems instead. Just so you know.

#4 Veritas Vinum Arte

Posted 06 December 2019 - 10:04 AM

We installed Dakin multizone ducted heating/cooling. Moved in July this year.

We are very happy with how it heats/cools. Having many zones allows us to be more efficient in the use.

Edited by Veritas Vinum Arte, 06 December 2019 - 10:05 AM.

#5 Gumbette

Posted 06 December 2019 - 01:05 PM

DH is an ex-tradie and occasionally dabbles in installs in summer.  He always recommends Daikin as they really are the best.  It's what we have in our new build - 8 zone ducted plus a single split. The increase in power costs was so minimal I can't even tell you what is and they're probably as quiet as you'll get.

ETA.  Callmeferal - we installed a split in the back half of the house (another Daikin) for that reason.  Shut the hallway door when everyone is in the kitchen / dining / family room and it's completely cooled by an 8 kw rather than turning on the 16 kw ducted.  We only use the ducted when everyone is upstairs at night and we're all spread out.

Edited by Gumbette, 06 December 2019 - 01:08 PM.

#6 Romeo Void

Posted 06 December 2019 - 01:46 PM

View PostCallMeFeral, on 06 December 2019 - 10:01 AM, said:

This may not be of any interest, but I've been on a number of green forums lately related to us building a house, and apparently ducting is a very inefficient form of heating/cooling. They recommend split and multisplit systems instead. Just so you know.

We plan on running the ducted during the day using solar, so minimal expense and I guess environmental cost.  Nights it cools down quicky and fans are enough.

Edited by Romeo Void, 06 December 2019 - 01:49 PM.

#7 ~LemonMyrtle~

Posted 06 December 2019 - 05:17 PM

We have a daikin ducted system. The outdoor unit makes noise, but it isn’t too bad. We avoid running it at night anyway, and daikin is meant to be the quietest. It’s been great so far. We have it ducted to 4 rooms.

Can you position the outdoor unit on the other side from the noise sensitive neighbour?

#8 Ruf~Feral~es

Posted 06 December 2019 - 05:42 PM

Wow - another Daikin here too.  6 zones, so it can be turned on and off in areas that don't need it.  

Also runs on solar during the day, and generally not on at night - although we've already had 3 nights so far this summer where we've used it, which is not 'usual'.  

It's hard to compare costs to the old split systems due to the solar panels, but I definitely think it's much better.  The split systems struggled in our house, especially when it was around 35+, which is seems to be regularly now.

#9 can'tstayaway

Posted 07 December 2019 - 08:47 AM

Our current one is Daikin too. It’s been great and noise hasn’t been an issue.

We live under a flight path and near some major roads and construction. I had an extra filter installed and in our bedroom areas, we don’t open the windows. The ducted system runs on “fan” mode most of the time.  It draws in fresh air and filters it. The bedroom areas have minimal dust and always seems fresh.

It may be overkill for some but the kids have allergies and this was a recommendation from their specialist. We originally used little portable filters but when we installed the ducted, we thought, why not just go the whole hog.

In a previous house, the installer recommended getting 2 smaller system rather than one big ducted system. The theory goes that if you’re mainly only turning on one room, you don’t need to power up a big unit. But if you want to use it in the whole house, both systems kick in.  Also, with inverter systems, it’s often more efficient to turn them on early and leave them running rather than only cranking it up once it’s hot and having it work harder.

#10 Romeo Void

Posted 07 December 2019 - 10:57 AM

View Post~LemonMyrtle~, on 06 December 2019 - 05:17 PM, said:

Can you position the outdoor unit on the other side from the noise sensitive neighbour?
I wish we could but that side is all big glass doors/windows, including the back.  This side is the 'business' side of the house, where the hot water system is, the laundry line...that sort of thing.

#11 Jingleflea

Posted 07 December 2019 - 11:19 AM

We ended up with 2 split systems(Daiken lol) but only use one now.

The old one got noisy and we only found out when the guy on the side of the motor unit pointed it out, got it looked at and fixed. But it was 15 years old by then.

Now we have one in a central location and it's brilliant. Does the whole (rather small) house.

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