Using a ducted A/C unit in our none ducted coaches?

LQQKatJon

Well-known member
Oct 22, 2010
3,216
534
113
St. Cloud, Mn
lqqkatjon.blogspot.com
There are a couple done on the photo site. When I have seem them done, you loose headroom, so hopefully they are short like me and have short
friends and family.

The really fancy way to do A/C is a mini-split unit and not even have a roof A/C. But that is lots of work.
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
 
Jim:

I’ve put a bunch of mini-splits in the apartments we own, and the new heat pumps from Mitsubishi just kick out the heat during the winter.

We had a few single digit days, and they didn’t even use the auxiliary resistive heat.

So far, the only installs I’ve seen have the condenser on the back bumper.

Seems to me like it would be a little noisy for those of us who sleep back there… but I would love to hear about it (pun intended).

Here’s a link.

https://youtu.be/IkDoKpivb24

Dolph

DE AD0LF

Wheeling, West Virginia

1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Manny Transmission

“The Aluminum and Fiberglass Mistress"

>
> There are a couple done on the photo site. When I have seem them done, you loose headroom, so hopefully they are short like me and have short
> friends and family.
>
>
> The really fancy way to do A/C is a mini-split unit and not even have a roof A/C. But that is lots of work.
> --
> Jon Roche
> 75 palm beach
> EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
> St. Cloud, MN
> http://lqqkatjon.blogspot.com/
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Ducted AC upgrades a number of times in the GMC community. Here are some
Pictures and albums:

Be sure to read the comments under each picture, you can be surprised how
much you can miss.

<
http://www.gmcmhphotos.com/photos/it-has-begun/p41963-new-rear-headliner-with-ducted-ac-and-recessed-lights.html
>
<
http://www.gmcmhphotos.com/photos/it-has-begun/p41964-new-rear-headliner-with-ducted-ac-and-recessed-lights.html
>
<
http://www.gmcmhphotos.com/photos/it-has-begun/p41964-new-rear-headliner-with-ducted-ac-and-recessed-lights.html
>

and

<
http://www.gmcmhphotos.com/photos/member-galleries/p28261-dropped-ceiling.html
>
<
http://www.gmcmhphotos.com/photos/member-galleries/p28258-dropped-ceiling.html
>
<
http://www.gmcmhphotos.com/photos/member-galleries/p28255-dropped-ceiling.html
>

Good examples, let your mind run wild.

J.R. Wright
GMC Great Laker
GMCGL Tech Editor
GMC Eastern States
GMCMHI
TZE Zone Restorations
78 Buskirk Custom 29.5' Stretch
75 Avion (Under going Frame up Restoration)

On Sun, Apr 5, 2020 at 8:19 AM Dolph Santorine via Gmclist <

> Jim:
>
> I’ve put a bunch of mini-splits in the apartments we own, and the new heat
> pumps from Mitsubishi just kick out the heat during the winter.
>
> We had a few single digit days, and they didn’t even use the auxiliary
> resistive heat.
>
> So far, the only installs I’ve seen have the condenser on the back bumper.
>
> Seems to me like it would be a little noisy for those of us who sleep back
> there… but I would love to hear about it (pun intended).
>
> Here’s a link.
>
> https://youtu.be/IkDoKpivb24
>
>
> Dolph
>
> DE AD0LF
>
> Wheeling, West Virginia
>
> 1977 26’ ex-PalmBeach
> Howell EFI & EBL, Reaction Arms, Manny Transmission
>
> “The Aluminum and Fiberglass Mistress"
>
> > On Apr 5, 2020, at 10:38 AM, Jon Roche via Gmclist <

> >
> > There are a couple done on the photo site. When I have seem them
> done, you loose headroom, so hopefully they are short like me and have short
> > friends and family.
> >
> >
> > The really fancy way to do A/C is a mini-split unit and not even have a
> roof A/C. But that is lots of work.
> > --
> > Jon Roche
> > 75 palm beach
> > EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
> > St. Cloud, MN
> > http://lqqkatjon.blogspot.com/
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
JR:

Love the use of Steel Studs for the standoffs!

Jon Roche, I typed Jim….. my bad.

Dolph

DE AD0LF

Wheeling, West Virginia

1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Manny Transmission

“The Aluminum and Fiberglass Mistress"

>
> Ducted AC upgrades a number of times in the GMC community. Here are some
> Pictures and albums:
>
> Be sure to read the comments under each picture, you can be surprised how
> much you can miss.
>
> <
> http://www.gmcmhphotos.com/photos/it-has-begun/p41963-new-rear-headliner-with-ducted-ac-and-recessed-lights.html
>>
> <
> http://www.gmcmhphotos.com/photos/it-has-begun/p41964-new-rear-headliner-with-ducted-ac-and-recessed-lights.html
>>
> <
> http://www.gmcmhphotos.com/photos/it-has-begun/p41964-new-rear-headliner-with-ducted-ac-and-recessed-lights.html
>>
>
> and
>
> <
> http://www.gmcmhphotos.com/photos/member-galleries/p28261-dropped-ceiling.html
>>
> <
> http://www.gmcmhphotos.com/photos/member-galleries/p28258-dropped-ceiling.html
>>
> <
> http://www.gmcmhphotos.com/photos/member-galleries/p28255-dropped-ceiling.html
>>
>
> Good examples, let your mind run wild.
>
> J.R. Wright
> GMC Great Laker
> GMCGL Tech Editor
> GMC Eastern States
> GMCMHI
> TZE Zone Restorations
> 78 Buskirk Custom 29.5' Stretch
> 75 Avion (Under going Frame up Restoration)
>
>
>
> On Sun, Apr 5, 2020 at 8:19 AM Dolph Santorine via Gmclist <

>
>> Jim:
>>
>> I’ve put a bunch of mini-splits in the apartments we own, and the new heat
>> pumps from Mitsubishi just kick out the heat during the winter.
>>
>> We had a few single digit days, and they didn’t even use the auxiliary
>> resistive heat.
>>
>> So far, the only installs I’ve seen have the condenser on the back bumper.
>>
>> Seems to me like it would be a little noisy for those of us who sleep back
>> there… but I would love to hear about it (pun intended).
>>
>> Here’s a link.
>>
>> https://youtu.be/IkDoKpivb24
>>
>>
>> Dolph
>>
>> DE AD0LF
>>
>> Wheeling, West Virginia
>>
>> 1977 26’ ex-PalmBeach
>> Howell EFI & EBL, Reaction Arms, Manny Transmission
>>
>> “The Aluminum and Fiberglass Mistress"
>>
>>> On Apr 5, 2020, at 10:38 AM, Jon Roche via Gmclist <

>>>
>>> There are a couple done on the photo site. When I have seem them
>> done, you loose headroom, so hopefully they are short like me and have short
>>> friends and family.
>>>
>>>
>>> The really fancy way to do A/C is a mini-split unit and not even have a
>> roof A/C. But that is lots of work.
>>> --
>>> Jon Roche
>>> 75 palm beach
>>> EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
>>> St. Cloud, MN
>>> http://lqqkatjon.blogspot.com/
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
> There are a couple done on the photo site. When I have seem them done, you loose headroom, so hopefully they are short like me and have short
> friends and family.
>
>
> The really fancy way to do A/C is a mini-split unit and not even have a roof A/C. But that is lots of work.

------------------- -

Here is a minisplit, 120v uses LESS energy than the monster on the roof of our RV's
Enjoy.

Mini Split install

https://www.youtube.com/watch?v=fbn5MXmJpzY

Mini Split Running

https://www.youtube.com/watch?v=pYhJz6ScJfk

--
GatsbysCruise. \
74GMC260 Former Glacier Model style. \
Waukegan, Illinois \ Keep those MiniDiscs Spinning \ MY GREYHOUND IS FASTER THAN YOUR HONOR ROLL STUDENT \ WindowsXP-Win7-Win8.1-UBUNTU STUDIO -
UBUNTU VOYAGER - Berzin Auto Center
 
> Jim:
> So far, the only installs I've seen have the condenser on the back bumper.
>
> Seems to me like it would be a little noisy for those of us who sleep back there... but I would love to hear about it (pun intended).

I installed a regular rotary-compressor based mini-split in my garage probably 10 years ago, and it is fairly quiet, but I agree, would not want one
on my back bumper.

But the new inverter based units are shockingly quiet... I've installed a couple for friends, and I could not believe how quiet it was. And I can't
wait till that technology makes it into RV ACs... Whether that be in a roof-top unit, or in an RV based mini-split....

For comparison, the Atwood Air Command, which is one of the quieter RV ACs out there is around 62-63db..... The new inverter mini-splits are usually
lower than 40db inside, and even the outdoor units are in the low 50db range.... That's a huge difference, when you consider every 3db change is
double the sound energy.

If I ever do a full remodel so I could easily run the lines, one of the 2 zone inverter mini-splits would probably be how I would want to go... Place
one indoor unit in the back bedroom across the rear window, and one on the side near the front of the coach running off of one outdoor unit mounted on
the rear bumper would be fantastic... Even better if they come up with some compact compressor/condensor unit that could be mounted on the roof, or in
a storage compartment....

On top of all that, they use less power, and are soft starting by nature...

--
Mark S. '73 Painted Desert,
Manny 1 Ton Front End,
Howell Injection,
Leigh Harrison 4bag and Rear Brakes,
Fort Worth, TX
 
It has been ages since I was shopping A/C units, but when I did, I researched them all......

from what I remember, all the top units are generally equal if it is a ducted unit or a non-ducted unit. You can usually buy the top separate, and
the inside separate, or as a kit.

so a "ducted" version, should only need a "non-ducted" inside to make it a non-ducted type. That was the case with the atwood air-command, the
coleman mach8 and a few others at that time.

--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/