| Adding rooftop AC [message #196762] |
Tue, 29 January 2013 12:49  |
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SeanKidd
Messages: 747
Registered: June 2012
Location: Northern Neck Virginia
Karma: 4
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I am strongly considering replacing my original Coleman it works but is very noisy and the exterior is unsalvageable. That said, I'll probably buy 2 and add it to the rear, what problems, if any may I encounter moving my vent to the middle "hole" .
Will the existing circuit reach the front hole? One thing for sure, both units will be heat pump. Open to suggestions and recommendations (and coupons) Thanks in advance!
Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
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| Re: Adding rooftop AC [message #196770 is a reply to message #196762] |
Tue, 29 January 2013 15:22  |
John Sharpe
Messages: 489
Registered: February 2006
Location: Texas
Karma: 1
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| Quote: |
Seankidd: ....replacing my original Coleman..... I'll probably buy 2 and add it to the rear, what problems, if any may I encounter moving my vent to the middle "hole" .
Will the existing circuit reach the front hole? One thing for sure, both units will be heat pump. Open to suggestions and recommendations.......
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Sean, I switched the front vent and a/c on mine. On the '78 the framework for the vent is integrated into the vent assembly so when the vent was removed there was no frame in which to mount the ac. So a frame had to be fabricated. Was't a problem just something that had to be done. Replaced the power line to the front ac as it was too short and I did not want to cover a junction box in the ceiling. If you add a rear ac you will need to run electrical to it also.
I have only one heatpump in the rear and it works real well for me. Those heatpumps put out a lot more btu's than the strip heat. I don't know how they work at 0* but I won't be in the GMC at those temps anyway.
John Sharpe
Humble,TX
'78 Eleganza TBI
'89 Spectrum 2000 MPI V-10
'40 Ford Panel Delivery TPI
johnasharpe@gmail.com
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| Re: [GMCnet] Adding rooftop AC [message #196787 is a reply to message #196779] |
Tue, 29 January 2013 18:34 |
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In my experience the heat pump will be generally effective down to 40
degrees F. That means you should expect for the system to be inefficient
if it drops lower. That's when the gas-fired furnace comes in handy or
some other form of electrical heat from the floor side of the coach and
not the ceiling side. Of course, if you're going to use the heat pump the
assumption is that you can plug in two 1500 way heaters of some type and
still remain relatively warm if you continue to drink coffee and have an
electric blanket for bed time.
We have used the GMC down to a low of 26 without issues such as freezing
pipes.
Byron Songer
Louisville, KY
News and Web Editor, GMC Eastern States
http://www.gmceast.com
ATTENTION: This reply is in reference to what is provided below
>
>
>Thanks for the insight, My sentiments, if its too cold for the heat pump
>to work, I probably made a wrong turn somewhere. :roll:
>--
>73 Canyonlands 26' #317
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Byron Songer
Full-timing to enjoy the USA
Former owner but still an admirer
GMC paint schemes at -
http://www.songerconsulting.net
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| Re: [GMCnet] Adding rooftop AC [message #196823 is a reply to message #196762] |
Wed, 30 January 2013 06:38 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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I bought a Dometic and had it put in my 23' when the Coleman finally expired. I've been most pleased with it. Although Dometic notes in the literature that the heat function is 'to take the chill l off' rather than to replace a fuirnace, I've not run tmy electric heater since I got it. (I haven't yet inspected my furnace, so I don't run it) The fan, like all non-ducted A/Cs is fairly noisy but doesn't keep me awake.
--johnny
'76 23' transmode norris
'76 palm beach
From: Sean Kidd <fiatkidd@yahoo.com>
To: gmclist@temp.gmcnet.org
Sent: Tuesday, January 29, 2013 1:49 PM
Subject: [GMCnet] Adding rooftop AC
I am strongly considering replacing my original Coleman it works but is very noisy and the exterior is unsalvageable. That said, I'll probably buy 2 and add it to the rear, what problems, if any may I encounter moving my vent to the middle "hole" .
Will the existing circuit reach the front hole? One thing for sure, both units will be heat pump. Open to suggestions and recommendations (and coupons) Thanks in advance!
--
73 Canyonlands 26' #317
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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