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-   -   AC - Central vs Ducted (http://www.airforums.com/forums/f295/ac-central-vs-ducted-197823.html)

ijoe13 07-05-2019 07:31 PM

AC - Central vs Ducted
 
Iíve tried to do some searching on YouTube hoping to find a comparison video of the noise level produced by both the central and ducted air conditioning in the new Caravel and Bambi lines. I realize these are brand new models and are just beginning to ship, but hoping someone can share a comparison.

GMFL 07-05-2019 08:06 PM

Ducted units are noted for being much quieter.

A W Warn 07-05-2019 08:17 PM

Will your local Airstream dealer let you listen to AC in trailers on the lot?

Wconley 07-05-2019 09:44 PM

The new ones are a game changer. The TV was almost impossible to watch and it was very difficult to sleep with the central air turned on. But with the ducted air you can carry on normal conversations, watch TV, eat dinner and sleep in comfort.

ijoe13 07-05-2019 11:19 PM

Quote:

Originally Posted by Wconley (Post 2260968)
The new ones are a game changer. The TV was almost impossible to watch and it was very difficult to sleep with the central air turned on. But with the ducted air you can carry on normal conversations, watch TV, eat dinner and sleep in comfort.



I presume the cooling efficiency is the same or better with the ducted system?

Wconley 07-05-2019 11:36 PM

No idea really but I can rationalize that cold air pouring directly out of the box into the trailer is about as efficient as possible but it’s not distributed very well. With outlets throughout the trailer, including the bathroom, overall temperature consistency is drastically improved even if there are some efficiency drops because of the ducting.

ijoe13 07-06-2019 12:05 AM

Makes sense. I plan on taking a look at and testing the AC units in both types of setups to fully understand the sound and efficiency difference.

lsbrodsky 07-06-2019 04:05 AM

People went through all of this a few years ago when the bigger trailers went ducted. I even know people who sold their relatively new trailer just to upgrade to ducted air. No doubt the ducted air is better, mostly. I also know one owner who had a roof leak and the ducting has made it impossible, so far, to find the source.
As the owner of an older trailer, I found that the addition of a sound bar to the TV has overcome the noise objection of watching TV. I would go with ducting if I had a choice, but I am not buying another one of these.
Larry

wulfraat 07-06-2019 06:59 AM

Iíve had both. Ducted is far superior. The old style is like a jet engine over your head - you canít have a conversation, you have to blast the TV, it wakes you up at night and itís just generally unpleasant to be in the trailer when itís running.

Ducted does not cool quite as well - so make sure you get a unit with 2 ACs / 50A service and this solves for the efficiency loss.

hhendrix 07-06-2019 08:07 AM

Quote:

Originally Posted by wulfraat (Post 2261014)
Iíve had both. Ducted is far superior. The old style is like a jet engine over your head - you canít have a conversation, you have to blast the TV, it wakes you up at night and itís just generally unpleasant to be in the trailer when itís running.

Ducted does not cool quite as well - so make sure you get a unit with 2 ACs / 50A service and this solves for the efficiency loss.


My same exact experience and the same advice I would offer. Currently in 90 degree Kansas heat and no shade. Dual A/C's keeping it comfortable and ducted air much quieter.

Wconley 07-06-2019 08:45 AM

One thing I will add is that while the ducting distributes airflow throughout the trailer we find that in our 28RBQ that when I get up early if I close the partition in the bedroom so my wife can sleep, the bedroom will overheat compared to the living area (we’ve never needed AC in the morning). We have gone so far as to close the outlets in the bedroom as much as possible and warm air comes out the air return grills in the bedroom and it still overheats. This happens using either or both heat pumps. I’ve taken to using a space heater in the living area when I get up to avoid making the bedroom uninhabitable. Even so, I’d never go back to the central unit.

ijoe13 07-06-2019 09:21 AM

The 20í AS only comes with a since AC unit, but I presume it would do a good enough job to keep it comfortable on moderately warm days (80-85)? We would likely go with one of these single axel models and at this point, the new Caravel 20FB is looking to be the one for us. I was waiting to see the 20FB Bambi, but doubt the central air they have in there is any quieter then the Sport.

369goose 07-06-2019 09:44 AM

Quote:

Originally Posted by lsbrodsky (Post 2260988)
People went through all of this a few years ago when the bigger trailers went ducted. I even know people who sold their relatively new trailer just to upgrade to ducted air. No doubt the ducted air is better, mostly. I also know one owner who had a roof leak and the ducting has made it impossible, so far, to find the source.
As the owner of an older trailer, I found that the addition of a sound bar to the TV has overcome the noise objection of watching TV. I would go with ducting if I had a choice, but I am not buying another one of these.
Larry

We listen to the television thru the Airstream speakers which helps, slightly, if you sit under the speakers at the dinette. But we've been wondering if a sound bar might make it possible to actually hear the TV over the AC. Mind sharing which sound bar you use?

Rgentum 07-06-2019 09:47 AM

The swivel grills at the outlets of our ducted A/C seriously restrict airflow, so removing them results in substantially more airflow and better cooling.

Caffeinated 07-06-2019 10:08 AM

Quote:

Originally Posted by ijoe13 (Post 2261068)
The 20í AS only comes with a since AC unit, but I presume it would do a good enough job to keep it comfortable on moderately warm days (80-85)? We would likely go with one of these single axel models and at this point, the new Caravel 20FB is looking to be the one for us. I was waiting to see the 20FB Bambi, but doubt the central air they have in there is any quieter then the Sport.

We have a single ac 27 FC, ducted. It does fine keeping cool up to 90 degrees or so. If it's 95 or higher it struggles a bit.

Mike

PatLee 07-06-2019 10:13 AM

Just an as a related aside to this discussion, one of the 'perks' of ducted A/C for me has been that my towels dry quickly when hung on towel rack in bathroom if either heat pump or A/C is in use. This is because heat/AC is now ducted into the bathroom where before, it was not.

PKI 07-06-2019 10:33 AM

If you plan on using AC, get ducted. If you travel off season and seldom will use AC and the central is enough of a cost savings to allow you to buy, get it. However, don't complain about the noise later. There are noise suppression baffles available for central systems. No info on real performance, so research before you assume it's a solution. The original 23 ducted had a problem with flow due to duct assembly. Would expect that to have been resolved on all models, and no one is reporting the problem now, but new is new - check close at pickup. The value of Central AC is that you will never hear traffic at night. When it's hot enough for AC, we don't care about the noise. However, if we could have purchased ducted, we would have. It was not available on the 23 in 2015. My advice, buy the ducted. Pat

lsbrodsky 07-06-2019 11:05 AM

Quote:

Originally Posted by 369goose (Post 2261082)
We listen to the television thru the Airstream speakers which helps, slightly, if you sit under the speakers at the dinette. But we've been wondering if a sound bar might make it possible to actually hear the TV over the AC. Mind sharing which sound bar you use?

I tried a couple and settled on the ZVOX as the best option.
Larry

ijoe13 07-06-2019 11:35 AM

It sounds like most of you are for ducted as the better option. The sound of the central must be horrendous. And letís face it, if I purchase a new 2020 model, I donít want to listen to a loud AC while trying to relax.

Concerning the sound bar, can you provide a photo of how you installed and mounted it? Is it mounted to the bottom of the TV so it swivels with it as a single unit?

lsbrodsky 07-06-2019 12:05 PM

Too hard to get a picture. I just used 3 pieces of flat aluminum, a horizontal piece that attaches to the TV mounting bracket and then a vertical piece at each end that attach to the horizontal piece and the two sound bar mounting holes. Machine screws, nuts, lock washers. Works great, under the TV, moves with the TV. Directs sound to your face and ears instead of down to the floor.
Larry


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