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Rhigley

Downey Ca

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Posted: 12/01/20 01:58pm Link  |  Quote  |  Print  |  Notify Moderator

I just installed a unit called RV Airflow on my rv and it made a big difference. What it dose is eliminates the divider and makes the entire intake bring in air instead of just half of the intake which gives you a lot more discharge through air vents. Now on warm days my unit dose not end up running all day. This will delete the 2 big outlets on the AC itself because the vents would put unfiltered air into the unit. My RV gets nice and cold now.


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Dutch_12078

Winters south, summers north

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Posted: 12/01/20 04:36pm Link  |  Quote  |  Print  |  Notify Moderator

It looks like a worthwhile mod if you have a Coleman Mach A/C and one of the compatible RV models.

RV Airflow


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spoon059

Just north of D.C.

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Posted: 12/01/20 05:21pm Link  |  Quote  |  Print  |  Notify Moderator

Awful expensive for pennies worth of plastic. OP, how long have you had it? Does it get your camper cooler than without, or does it simply get to your desired temperature sooner?

The video is greatly oversimplified. I'd have to guess that the majority of turbulence in the system is from the narrow ducts and the poorly designed turns and 90 degree vents.

One of the benefits of the AC dumps is that on a hot day you can open the dumps and cool the main living area more efficiently than the vents that are in the minimally insulated ceiling, baking in the sun. I'd be worried about getting rid of that advantage... but I'm curious about increasing the cooling ability overall.


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beemerphile1

Ohio

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Posted: 12/01/20 08:25pm Link  |  Quote  |  Print  |  Notify Moderator

Did it myself to my Dometic AC using some sheet metal. I noticed the same thing as the inventor, it dumps cold air into a box where it has to bounce around until finding its way to the ductwork. It is really a poor design and using some method to direct the air smoothly to the duct openings helps the flow and speed.


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Old-Biscuit

Verde Valley

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Posted: 12/01/20 08:32pm Link  |  Quote  |  Print  |  Notify Moderator

I did that 'mod' 12 yrs ago
Removed chill grille.
Made an 'inverted V' out of coroplast and installed it in plenum
Reinstalled chill grille

Fan room air blows down and splits due to the 'inverted V' directing the airflow out into the ducts
And if you open Chill Grille vents is still blows directly Down

Airflow thru ducts and chill grille was increased....5vr cools down quite well in high temps

Dang...Missed the boat---should have patented 12 yrs ago
I could have been a millionaire
Dang, Dang, Dang


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2112

Texas

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Posted: 12/02/20 05:10am Link  |  Quote  |  Print  |  Notify Moderator

Don't beat yourself up Old-Biscuit. I'm sure this company is buried in some serious debt at the moment. They probably spent or borrowed a million $ to get to this point. Molds are not cheap. It will take some time for them to realize a profit at this price point.

I would be hard pressed to give up my chill grille. It's almost required down here in Texas. One of the main reasons we are winter campers is the AC doesn't keep up and there's not much we can do about it. I would try one of these for $75, but not $175.


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gbopp

The Keystone State

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Posted: 12/02/20 07:11am Link  |  Quote  |  Print  |  Notify Moderator

Does it work for you? If it does, that's all that matters. [emoticon]

deltabravo

Spokane, WA

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Posted: 12/02/20 10:37pm Link  |  Quote  |  Print  |  Notify Moderator

This technique helps too if there's gaps where the ceiling panels meet the duct work.


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2112

Texas

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Posted: 12/03/20 06:54am Link  |  Quote  |  Print  |  Notify Moderator

deltabravo wrote:

This technique helps too if there's gaps where the ceiling panels meet the duct work.
I had the same issue in my Keystone Outback. Solved it with duct tape. On top of that, the ends of the ducts were open, blowing air into the ceiling gap. I had to block them off with cardboard.

Campinfan

Washtenaw County, Michigan

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Posted: 12/03/20 07:31am Link  |  Quote  |  Print  |  Notify Moderator

I open my windows and it gets really cold in my trailer now. lol


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