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Home » Public Forums » GMCnet » Furnace Heater upgrade (install of Atwood 35K BTU heater and our curved surface)
Furnace Heater upgrade [message #336812] Fri, 07 September 2018 12:25 Go to next message
Jack Ramsey is currently offline  Jack Ramsey   United States
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Registered: December 2012
Location: Tulare, CA
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I am assuming I will need to build a sheetmetal v to fill in the sides and lip over the top, and keep the interior heater compartment free from CO by making sure the seals are good and airtight. Anyone else done this (I am sure many have)

http://www.gmcmhphotos.com/photos/ramsey-rebuild/p65177-heater-upgrade-atwood-excal-3500-afmd35111-a.html

http://www.gmcmhphotos.com/photos/ramsey-rebuild/p65175-heater-upgrade-atwood-excal-3500-afmd35111-a.html

http://www.gmcmhphotos.com/photos/ramsey-rebuild/p65178-service-end-of-heater.html



Jack Ramsey Tulare, CA TZE165V101526 1975 Palm Beach
Re: Furnace Heater upgrade [message #336813 is a reply to message #336812] Fri, 07 September 2018 12:56 Go to previous messageGo to next message
bwevers is currently offline  bwevers   United States
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Registered: October 2010
Location: San Jose
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I've seen a furnace mounted at an upward angle so that
it fits more closely against the curved body. I don't know
if there are sketches showing how it is done...


Bill Wevers GMC49ers, GMC Western States 1975 Glenbrook - Manny Powerdrive, OneTon 455 F Block, G heads San Jose
Re: Furnace Heater upgrade [message #336814 is a reply to message #336812] Fri, 07 September 2018 12:58 Go to previous messageGo to next message
bwevers is currently offline  bwevers   United States
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Found a link:
http://www.gmcmhphotos.com/photos/g6020-suburban-furnace-replace.html


Bill Wevers GMC49ers, GMC Western States 1975 Glenbrook - Manny Powerdrive, OneTon 455 F Block, G heads San Jose
Re: [GMCnet] Furnace Heater upgrade [message #336815 is a reply to message #336814] Fri, 07 September 2018 14:20 Go to previous messageGo to next message
jimk is currently offline  jimk   United States
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Location: Belmont, CA
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Bill W is correct when it comes to lift the inside about 2-3" so the exaust
will mount easier at the wall.


On Fri, Sep 7, 2018 at 10:59 AM Bill Wevers wrote:

> Found a link:
> http://www.gmcmhphotos.com/photos/g6020-suburban-furnace-replace.html
> --
> Bill Wevers GMC49ers, GMC Western States
> 1975 Glenbrook - Manny Powerdrive, OneTon
> 455 F Block, G heads
> San Jose
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>


--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
Re: [GMCnet] Furnace Heater upgrade [message #336816 is a reply to message #336815] Fri, 07 September 2018 14:51 Go to previous messageGo to next message
Will Albers is currently offline  Will Albers   United States
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Location: Detroit MI (Belleville)
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Senior Member
Couple of ways to skin this cat...

Another owner shared how he sliced a chunk out of his exhaust flange, and
welded it at an angle. While scary, i did the same and it worked
wonderfully. My furnace is level to the coach floor, but my exhaust is
mounted to the proper angle on the exterior of the coach.

In retrospect, i would have been comfortable mounting the furnace at an
angle as it gives a heater output port from the bottom of the furnace.

Regardless, measure 17x and cut once.

On Fri, Sep 7, 2018 at 3:21 PM Jim Kanomata wrote:

> Bill W is correct when it comes to lift the inside about 2-3" so the exaust
> will mount easier at the wall.
>
>
> On Fri, Sep 7, 2018 at 10:59 AM Bill Wevers wrote:
>
>> Found a link:
>> http://www.gmcmhphotos.com/photos/g6020-suburban-furnace-replace.html
>> --
>> Bill Wevers GMC49ers, GMC Western States
>> 1975 Glenbrook - Manny Powerdrive, OneTon
>> 455 F Block, G heads
>> San Jose
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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1978 Palm Beach.
Detroit Michigan
Re: Furnace Heater upgrade [message #336823 is a reply to message #336814] Sat, 08 September 2018 10:39 Go to previous message
Jack Ramsey is currently offline  Jack Ramsey   United States
Messages: 82
Registered: December 2012
Location: Tulare, CA
Karma: 1
Member
Looks like a really SIMPLE great solution (not so simple to make the plenum, but does add to the efficiency). With Jim K's nod to the solution, I will start the process.

THANKS!!

Jack


Jack Ramsey Tulare, CA TZE165V101526 1975 Palm Beach
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