| Re: [GMCnet] GMC furnace [message #169277 is a reply to message #169262] |
Fri, 11 May 2012 16:16   |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma:
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Senior Member |
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and here are a few that may have been linked
http://gmcmotorhome.info/heat.html#solaire
gene
On Fri, May 11, 2012 at 12:36 PM, Rick <rsdahbugeye@gmail.com> wrote:
> Thanks for all the recommendations!
> I picked up a Suburban NT30SP today and look forward to making it fit. The
> project photos you linked are going to be a great help, some real creative
> ideas there.
>
> Rick
>
>
>
> On May 10, 2012, at 7:41 PM, Mike Miller <m000035@gmail.com> wrote:
>
> >
> >
> > Rick wrote on Thu, 10 May 2012 11:52
> >> I'm new to this forum and to the GMC so I hope this makes sense.
> >> My new(old) '74 Painted Desert has a bad furnace (located under the
> kitchen sink).
> >> I'm not sure what the brand or model it is, though I suspect it is a
> Suburban.
> >> What brand and model would be the best replacement? And is there
> anything special required to compensate for the curved exterior wall. ...
> >
> >
> > Welcome to the nut-house! :twisted:
> >
> > As you stated in another message, the Suburban "NT" models are almost
> direct replacements for the original furnace. The newer furnaces need some
> modifications to fit. BUT as the are a little smaller, so it is easier
> than it could be.
> >
> > As for BTU size, it has been argued that bigger is not always better due
> to furnace cycling issues. You might get better results with a smaller
> (BTU) model over a larger one... besides being cheaper to buy.
> >
> > Yes, there is "special requirement" to compensate for the curved
> exterior wall. The "NT" models are designed to be placed directly against
> the wall for cooling air-flow reasons. You can mount it on a slanted base
> (tilting it to match the wall) or put a metal "back" on the new furnace.
> (I understand Suburban makes a kit for this.) I have done it both ways
> and think the level mounting with metal back is the better way to go -- due
> to space usage and ease of furnace servicing. (I could NOT take my Birch's
> furnace out due to the tilted mounting.)
> >
> > If you do NOT tilt the furnace, make sure the final intake and exhaust
> tubes are long enough to make a good seal.
> >
> > Here are pictures:
> >
> > This is someone else's with a nice angled base (much better than mine):
> > <http://www.gmcmhphotos.com/photos/g6020-suburban-furnace-replace.html>
> >
> > This is my '73 with a homemade metal back on a level base (You might
> notice that I am a wood butcher... and not a metal worker. But you get the
> idea...)
> > <http://www.gmcmhphotos.com/photos/g3995-furnace.html>
> >
> > --
> > Mike Miller -- Hillsboro, OR -- on the Black list
> > (#1)'73 26' exPainted D. -- (#2)`78 23' Birchaven Rear Bath -- (#3)`77
> 23' Birchaven Side Bath
> > http://m000035.blogspot.com
> > _______________________________________________
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--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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