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furnace replacement [message #185843] Fri, 28 September 2012 08:23 Go to next message
GeorgeRud is currently offline  GeorgeRud   United States
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Registered: February 2007
Location: Chicago, IL
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Just got back from Amana, and the rather chilly nights make me think that it may be time to consider replacing my original furnace (I have not used it as I disconnected the propane feed and don't trust a 37 year old furnace). I did use an electric heater which did help somewhat, but getting out from under the blankets took a bit of encouragement early in the morning!

The Atwood furnaces seem nice and I like the idea of outside access to the furnace. What BTU sizes have people installed in their coaches? I don't see myself doing any sub-freezing camping, but would like to have the chill taken out of the coach.

Thanks for any input.


George Rudawsky
Chicago, IL
75 Palm Beach
Re: [GMCnet] furnace replacement [message #185845 is a reply to message #185843] Fri, 28 September 2012 08:47 Go to previous messageGo to next message
Mr ERFisher is currently offline  Mr ERFisher   United States
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Registered: August 2005
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have you read here?
http://gmcmotorhome.info/heat.html#solaire

gene


>
> Just got back from Amana, and the rather chilly nights make me think that
> it may be time to consider replacing my original furnace (I have not used
> it as I disconnected the propane feed and don't trust a 37 year old
> furnace). I did use an electric heater which did help somewhat, but
> getting out from under the blankets took a bit of encouragement early in
> the morning!
>
> The Atwood furnaces seem nice and I like the idea of outside access to the
> furnace. What BTU sizes have people installed in their coaches? I don't
> see myself doing any sub-freezing camping, but would like to have the chill
> taken out of the coach.
>
> Thanks for any input.
> --
> George Rudawsky
> Chicago, IL
> 75 Palm Beach
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
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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Re: [GMCnet] furnace replacement [message #185847 is a reply to message #185843] Fri, 28 September 2012 08:50 Go to previous messageGo to next message
powerjon is currently offline  powerjon   United States
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Registered: January 2004
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Senior Member
George,

Go here for information.
http://gmcmotorhomeinfo.com/heat.html#solaire

The Suburban NT-30 is almost a direct replacement.
http://www.gmcmhphotos.com/photos/g3023-furnace-ii.html

What you have to do is find the best price. I would avoid any used
unit.

I give these only as examples.

http://www.rvpartsoutlet.com/product_info.php?cPath=873_91&products_id=6110
or
http://goo.gl/ClFim

http://www.adventurerv.net/suburban-nt30sp-nt30sp-series-ducted-furnace-30000-btu-p-3835.html
or
http://goo.gl/bZP0l

If you look around you might find a good deal. If you go too small
you will not get enough heat for the coach, the 30K btu unit is what
you want.

JR Wright
78 Buskirk Stretch
Michigan

On Sep 28, 2012, at 9:23 AM, George Rudawsky wrote:

>
>
> Just got back from Amana, and the rather chilly nights make me think
> that it may be time to consider replacing my original furnace (I
> have not used it as I disconnected the propane feed and don't trust
> a 37 year old furnace). I did use an electric heater which did help
> somewhat, but getting out from under the blankets took a bit of
> encouragement early in the morning!
>
> The Atwood furnaces seem nice and I like the idea of outside access
> to the furnace. What BTU sizes have people installed in their
> coaches? I don't see myself doing any sub-freezing camping, but
> would like to have the chill taken out of the coach.
>
> Thanks for any input.
> --
> George Rudawsky
> Chicago, IL
> 75 Palm Beach
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
Re: [GMCnet] furnace replacement [message #185851 is a reply to message #185843] Fri, 28 September 2012 08:56 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
Lemme know what you end up with.  I fired mine up a while back and got a nice heat plus the smell of a propane burner, so I shut it off and arranged the BWD across the covers.  My new A/C is a heat pump, but Dometic says don't expect it to heat below aboput 40 degrees outside.  I do a show in N MS in late January every year and it can get nippy there.
 
--johnny
'76 23' transmode norris
'76 palm beach

From: George Rudawsky <GeorgeRud@aol.com>
To: gmclist@temp.gmcnet.org
Sent: Friday, September 28, 2012 9:23 AM
Subject: [GMCnet] furnace replacement



Just got back from Amana, and the rather chilly nights make me think that it may be time to consider replacing my original furnace (I have not used it as I disconnected the propane feed and don't trust a 37 year old furnace).  I did use an electric heater which did help somewhat, but getting out from under the blankets took a bit of encouragement early in the morning!

The Atwood furnaces seem nice and I like the idea of outside access to the furnace.  What BTU sizes have people installed in their coaches?  I don't see myself doing any sub-freezing camping, but would like to have the chill taken out of the coach. 

Thanks for any input.
--
George Rudawsky
Chicago, IL
75 Palm Beach
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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
Re: [GMCnet] furnace replacement [message #185852 is a reply to message #185843] Fri, 28 September 2012 09:07 Go to previous messageGo to next message
RicksGMC is currently offline  RicksGMC   United States
Messages: 145
Registered: May 2012
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Senior Member
George,
I just replaced mine with the Suburban NT-30, it was a pretty straight forward replacement for the original. It used the original vent holes on the outside which was nice, just had to build a sloped base to compensate for the curved wall and modify the duct work to match the old. So far it's working very well.

Regards,
Rick

Rick Drummond
Prior Lake MN
1974 (re-)Painted Desert 26'
TZE064V100077


On Sep 28, 2012, at 8:23 AM, George Rudawsky <GeorgeRud@aol.com> wrote:

>
>
> Just got back from Amana, and the rather chilly nights make me think that it may be time to consider replacing my original furnace (I have not used it as I disconnected the propane feed and don't trust a 37 year old furnace). I did use an electric heater which did help somewhat, but getting out from under the blankets took a bit of encouragement early in the morning!
>
> The Atwood furnaces seem nice and I like the idea of outside access to the furnace. What BTU sizes have people installed in their coaches? I don't see myself doing any sub-freezing camping, but would like to have the chill taken out of the coach.
>
> Thanks for any input.
> --
> George Rudawsky
> Chicago, IL
> 75 Palm Beach
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Rick Rick&Tammy Drummond Prior Lake MN '74 (re)Painted Desert
Re: [GMCnet] furnace replacement [message #185879 is a reply to message #185851] Fri, 28 September 2012 19:24 Go to previous messageGo to next message
mike miller   United States
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
Senior Member
Johnny Bridges wrote on Fri, 28 September 2012 06:56

...  I fired mine up a while back and got a nice heat plus the smell of a propane burner, so I shut it off and arranged the BWD across the covers.  My new A/C is a heat pump, but Dometic says don't expect it to heat below aboput 40 degrees outside. ...


(for others: BWD = Big White Dog)

So... a one dog night.

An unused furnace collects dust on the burner that smells "odd" the first time it is fired up.

Do a visual on the burner before using and ALWAYS have a working CO detector when heating with anything other than electric.

Yes, heat pumps have a lower limit to their usefulness in colder weather. Also a roof mounted heater heats the air near the heater... up near the roof!



Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo' http://m000035.blogspot.com
Re: [GMCnet] furnace replacement [message #185880 is a reply to message #185852] Fri, 28 September 2012 19:27 Go to previous messageGo to next message
carnutbill is currently offline  carnutbill   United States
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Registered: February 2004
Location: Rochester N.Y.
Karma: 0
Member


this is how I did mine:

http://www.gmcmhphotos.com/photos/g4654-suburban-sf30-furance.html

posted on the THE GMC MOTORHOME PHOTO ARCHIVE

http://www.gmcmhphotos.com/photos/ bill

75pb
Re: [GMCnet] furnace replacement [message #185888 is a reply to message #185879] Fri, 28 September 2012 20:50 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Mike,

I have two Dometic Brisk Air units with the heat strip. I can rotate the outlet guide vanes and direct the airflow downwards when
its on.

Regards,
Rob M.

-----Original Message-----
From: Mike Miller

(for others: BWD = Big White Dog)

So... a one dog night.

An unused furnace collects dust on the burner that smells "odd" the first time it is fired up.

Do a visual on the burner before using and ALWAYS have a working CO detector when heating with anything other than electric.

Yes, heat pumps have a lower limit to their usefulness in colder weather. Also a roof mounted heater heats the air near the
heater... up near the roof!

Mike

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] furnace replacement [message #185900 is a reply to message #185879] Sat, 29 September 2012 08:31 Go to previous message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
There's enough air blast to get the heat down to the floor.  It does a good job of circulating cool too, even unducted from the roof. 
Of interest, the combustion blower failed on my home A/C-furnace.  It makes a lot more sense than the RV ones - it is mounted as a suction, so it pulls the air out and leaves the combustion chamber at a slightly negative pressure rather than a positive.  And, although the attendant water vapor and heat going over the blower wheel are probably why it rusted to nothingness in 6 years, it is a LOT safer than one which pressurizes the combustion chamber.  I'd pay the extra for a stainless one in this service...
 
--johnny
'76 23' transmode norris
'76 palm beach

From: Mike Miller <m000035@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Friday, September 28, 2012 8:24 PM
Subject: Re: [GMCnet] furnace replacement



Johnny Bridges wrote on Fri, 28 September 2012 06:56
> ...  I fired mine up a while back and got a nice heat plus the smell of a propane burner, so I shut it off and arranged the BWD across the covers.  My new A/C is a heat pump, but Dometic says don't expect it to heat below aboput 40 degrees outside. ...


(for others: BWD = Big White Dog)

So... a one dog night. 

An unused furnace collects dust on the burner that smells "odd" the first time it is fired up.

Do a visual on the burner before using and ALWAYS have a working CO detector when heating with anything other than electric.

Yes, heat pumps have a lower limit to their usefulness in colder weather.  Also a roof mounted heater heats the air near the heater... up near the roof!


--
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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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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