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Home » Public Forums » GMCnet » They sent me the wrong furnace (Is the SF-35FQ too big?)
They sent me the wrong furnace [message #313487] Sun, 19 February 2017 20:00 Go to next message
shaunone is currently offline  shaunone   Canada
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Registered: August 2016
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As the title suggests, I ordered a new Suburban SF-25FQ online and they sent me a SF-35FQ by mistake. I contacted the company for a return and they told me to keep it (cost of shipping outweighs the price difference for them).

I intentionally ordered the 25 because we don't do any cold weather camping (nothing below freezing) and I didn't want the thing cycling as frequently during the night. For those that have the 35, is it too big? Does the fan wake you up in the night? Does it use a lot more propane than the stock unit? Am I overthinking this?

Shaun


1977 Palm Beach, 455, mostly stock and original
Re: They sent me the wrong furnace [message #313490 is a reply to message #313487] Sun, 19 February 2017 20:26 Go to previous messageGo to next message
wally is currently offline  wally   United States
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Registered: August 2004
Location: Omaha Nebraska
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Senior Member
shaunone wrote on Sun, 19 February 2017 20:00
As the title suggests, I ordered a new Suburban SF-25FQ online and they sent me a SF-35FQ by mistake. I contacted the company for a return and they told me to keep it (cost of shipping outweighs the price difference for them).

I intentionally ordered the 25 because we don't do any cold weather camping (nothing below freezing) and I didn't want the thing cycling as frequently during the night. For those that have the 35, is it too big? Does the fan wake you up in the night? Does it use a lot more propane than the stock unit? Am I overthinking this?

Shaun

We put in an SH35 and it's plenty big. It works OK. Needed an additional outlet to keep it from cycling on the high limit. I'd get less less btu on a do over.


Wally Anderson
Omaha NE
75 Glenbrook
Re: [GMCnet] They sent me the wrong furnace [message #313497 is a reply to message #313487] Sun, 19 February 2017 21:09 Go to previous messageGo to next message
Kosier is currently offline  Kosier   United States
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Registered: February 2008
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Senior Member
Well, theoretically, the cool down time between cycles will not change,
since it's independent of the heating. Since the furnace has a higher
capacity, it won't run as long. So, because of that fact, it will probably
cycle a little oftener. Might be a hair more economical to run, but
not enough to notice. That's my experience on big heating systems, yours
may vary.

Gary Kosier
77PB w/500Cad
Newark, Ohio

--------------------------------------------------
From: "Shaun"
Sent: Sunday, February 19, 2017 9:00 PM
To:
Subject: [GMCnet] They sent me the wrong furnace

> As the title suggests, I ordered a new Suburban SF-25FQ online and they
> sent me a SF-35FQ by mistake. I contacted the company for a return and
> they
> told me to keep it (cost of shipping outweighs the price difference for
> them).
>
> I intentionally ordered the 25 because we don't do any cold weather
> camping (nothing below freezing) and I didn't want the thing cycling as
> frequently
> during the night. For those that have the 35, is it too big? Does the fan
> wake you up in the night? Does it use a lot more propane than the stock
> unit? Am I overthinking this?
>
> Shaun
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org


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Re: [GMCnet] They sent me the wrong furnace [message #313498 is a reply to message #313497] Sun, 19 February 2017 21:13 Go to previous messageGo to next message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
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Senior Member
Gary, on the 35, IF THE 4TH DUCT OPENING IS NOT IN USE, the overheat switch
will cycle the furnace, not the thermostat. Then it is hard to tell.
Jim Hupy

On Feb 19, 2017 7:09 PM, "Gary Kosier" wrote:

> Well, theoretically, the cool down time between cycles will not change,
> since it's independent of the heating. Since the furnace has a higher
> capacity, it won't run as long. So, because of that fact, it will
> probably cycle a little oftener. Might be a hair more economical to run,
> but
> not enough to notice. That's my experience on big heating systems, yours
> may vary.
>
> Gary Kosier
> 77PB w/500Cad
> Newark, Ohio
>
> --------------------------------------------------
> From: "Shaun"
> Sent: Sunday, February 19, 2017 9:00 PM
> To:
> Subject: [GMCnet] They sent me the wrong furnace
>
> As the title suggests, I ordered a new Suburban SF-25FQ online and they
>> sent me a SF-35FQ by mistake. I contacted the company for a return and they
>> told me to keep it (cost of shipping outweighs the price difference for
>> them).
>>
>> I intentionally ordered the 25 because we don't do any cold weather
>> camping (nothing below freezing) and I didn't want the thing cycling as
>> frequently
>> during the night. For those that have the 35, is it too big? Does the fan
>> wake you up in the night? Does it use a lot more propane than the stock
>> unit? Am I overthinking this?
>>
>> Shaun
>>
>> _______________________________________________
>> 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
>
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Re: They sent me the wrong furnace [message #313506 is a reply to message #313487] Sun, 19 February 2017 22:47 Go to previous messageGo to next message
Jerry Sitzlar is currently offline  Jerry Sitzlar   United States
Messages: 206
Registered: February 2013
Location: Lenoir City, TN
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Senior Member
I installed the SF-35FQ in my Eleganza. It seems to burn less fuel than the stock unit (Sol-Aire). My unit sets under the stove/range. It was about the same size as the Sol-Aire unit but it did take some modification to make it fit. If your original is a Suburban it may fit easier. The "Q" means quite, and it is. No way as noisy as older units. Very happy with it. Smile

Jerry


Jerry Sitzlar..... 77 Eleganza II, Twin bed, dry bath...... Lenoir City, TN (near Knoxville)
Re: They sent me the wrong furnace [message #313518 is a reply to message #313487] Mon, 20 February 2017 07:52 Go to previous message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
In my experience (limited) no, no, no, and yes.

--johnny


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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