Home » Public Forums » GMCnet » Furnace Boost fan
| Furnace Boost fan [message #67152] |
Fri, 11 December 2009 06:54  |
jwillard
Messages: 118
Registered: May 2004
Location: Silver City, NM
Karma: 0
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Senior Member |
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Does anyone out there have one of the furnace boost fans laying around on the parts pile? I'm sitting in central Pa right now after a flawless 2,200 mile cross country trip (see trip report). It's presently 19 degrees here and The furnace is struggling, especially in the bedroom and bathroom areas. I'm thinking a boost fan will help out.
Jeff Willard
Silver City, NM
1973 ex-Glacier
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| Re: [GMCnet] Furnace Boost fan [message #67158 is a reply to message #67152] |
Fri, 11 December 2009 07:53  |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Jeff,
I have a good one and it's yours but I suggest you check the wiring
on yours. Most are wired backwards. The best way to warm the bath
area is to open the door all the way and let the hallway registers
blow air into that space. I have a magnet mounted near the ceiling
and a metal tab on the bath door and it does a great job of holding
the door fullly open. Same for the closet door. I can get up early,
watch the news and heat the bathroom without disturbing my sleeping
wife. The two open doors are an excellent sound barrier.
I'm in tucson right now at a GMC rally but will be home Mon if you
need me to ship it.
On Fri, Dec 11, 2009 at 4:54 AM, Jeff Willard <jwillard@oac-inc.com> wrote:
>
>
> Does anyone out there have one of the furnace boost fans laying around on the parts pile? I'm sitting in central Pa right now after a flawless 2,200 mile cross country trip (see trip report). It's presently 19 degrees here and The furnace is struggling, especially in the bedroom and bathroom areas. I'm thinking a boost fan will help out.
> --
> Jeff Willard
> Silver City, NM
> 1973 ex-Glacier
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
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--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
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| Re: [GMCnet] Furnace Boost fan [message #67163 is a reply to message #67158] |
Fri, 11 December 2009 08:22 |
 |
mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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I am pretty sure 1973 coaches did not come with "boost" fans. I THINK they where added with all the other changes in 1975. Granted ANY of these coaches could have ended up with one...
| Steven Ferguson wrote on Fri, 11 December 2009 05:53 |
Jeff,
I have a good one and it's yours but I suggest you check the wiring on yours. ...
On Fri, Dec 11, 2009 at 4:54 AM, Jeff Willard <jwillard@oac-inc.com> wrote:
>
>
> Does anyone out there have one of the furnace boost fans laying around on the parts pile?
--- snipped ---
> Jeff Willard
> Silver City, NM
> 1973 ex-Glacier
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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
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| Re: [GMCnet] Furnace Boost fan [message #67165 is a reply to message #67163] |
Fri, 11 December 2009 08:26 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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they draw a lot of power and the problem is, by the time the air goes down
the drivers side , across the back, and up to the bath, (all in an
uninsulated pipe) the air is cold any way.
gene
On Fri, Dec 11, 2009 at 6:22 AM, Mike Miller <m000035@gmail.com> wrote:
>
>
> I am pretty sure 1973 coaches did not come with "boost" fans. I THINK they
> where added with all the other changes in 1975. Granted ANY of these
> coaches could have ended up with one...
>
> Steven Ferguson wrote on Fri, 11 December 2009 05:53
> > Jeff,
> > I have a good one and it's yours but I suggest you check the wiring on
> yours. ...
> >
> > On Fri, Dec 11, 2009 at 4:54 AM, Jeff Willard <jwillard@oac-inc.com>
> wrote:
> > >
> > >
> > > Does anyone out there have one of the furnace boost fans laying around
> on the parts pile?
> > --- snipped ---
> > > Jeff Willard
> > > Silver City, NM
> > > 1973 ex-Glacier
>
>
> --
> Mike Miller
> `73 26' X Painted D.
> `78 23' Birchaven
> Hillsboro, OR
> _______________________________________________
> GMCnet mailing list
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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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| Re: [GMCnet] Furnace Boost fan [message #67175 is a reply to message #67152] |
Fri, 11 December 2009 10:04 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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We have a 78 Royale and I installed a booster fan to get heat back to the bed area, turned out Coachman during their high quality assembly process just stuffed all of the extra 4" duct hose under the refrig platform and crushed it, even with a booster we got zero heat back there. I finally just grabbed the duct hose and ripped it out...literally, there has to be 3 or 4 feet stuffed into that space. Now I need to fish some new 4" hose through and see if I get better heat in the bedroom. If we don't, I'm going to pick up a 2nd furnace and install it under the bed and have a dedicated furnace just for the bedroom and rear half of the coach, I'll fab SS pipes to duct in the furnace exhaust and fresh combustion air.
Last time we went out in Oct our rear bedroom was like a chest freezer.....
Ray
Ray & Lisa Erspamer
78 Royale Center Kitchen
The Malosco Cruiser (TZE368V101144)
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Jeff Willard <jwillard@oac-inc.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, December 11, 2009 6:54:15 AM
Subject: [GMCnet] Furnace Boost fan
Does anyone out there have one of the furnace boost fans laying around on the parts pile? I'm sitting in central Pa right now after a flawless 2,200 mile cross country trip (see trip report). It's presently 19 degrees here and The furnace is struggling, especially in the bedroom and bathroom areas. I'm thinking a boost fan will help out.
--
Jeff Willard
Silver City, NM
1973 ex-Glacier
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] Furnace Boost fan [message #67177 is a reply to message #67175] |
Fri, 11 December 2009 10:19 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Senior Member |
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No matter what you use to try to get heat from
one place to another in a coach, you are doomed
to disappointment unless you can install adequate
amounts of insulation around the duct.
Also, corrugated ducting will have a great deal
of loss of heat due to the friction of the air
flow by the ripples of the interior surface.
I believe most would be happier with a space
heater of some sort.
The quartz cubes do a pretty good job. Lots of
folks swear by the oil-filled units. No chance
of catching your "stuff" on fire with these.
D C "Mac" Macdonald
Oklahoma City, OK
----------------------------------------
> Date: Fri, 11 Dec 2009 08:04:58 -0800
> From: 78gmc-royale@att.net
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Furnace Boost fan
>
> We have a 78 Royale and I installed a booster fan to get heat back to the bed area, turned out Coachman during their high quality assembly process just stuffed all of the extra 4" duct hose under the refrig platform and crushed it, even with a booster we got zero heat back there. I finally just grabbed the duct hose and ripped it out...literally, there has to be 3 or 4 feet stuffed into that space. Now I need to fish some new 4" hose through and see if I get better heat in the bedroom. If we don't, I'm going to pick up a 2nd furnace and install it under the bed and have a dedicated furnace just for the bedroom and rear half of the coach, I'll fab SS pipes to duct in the furnace exhaust and fresh combustion air.
>
> Last time we went out in Oct our rear bedroom was like a chest freezer.....
>
> Ray
>
> Ray & Lisa Erspamer
> 78 Royale Center Kitchen
> The Malosco Cruiser (TZE368V101144)
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
>
>
>
>
> ________________________________
> From: Jeff Willard
> To: gmclist@temp.gmcnet.org
> Sent: Fri, December 11, 2009 6:54:15 AM
> Subject: [GMCnet] Furnace Boost fan
>
>
>
> Does anyone out there have one of the furnace boost fans laying around on the parts pile? I'm sitting in central Pa right now after a flawless 2,200 mile cross country trip (see trip report). It's presently 19 degrees here and The furnace is struggling, especially in the bedroom and bathroom areas. I'm thinking a boost fan will help out.
> --
> Jeff Willard
> Silver City, NM
> 1973 ex-Glacier
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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| Re: [GMCnet] Furnace Boost fan [message #67182 is a reply to message #67175] |
Fri, 11 December 2009 11:17 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Jeff & Ray
If you really have to have a fan which in the past have proven
marginal here are 2 examples that are reasonably priced and can move a
decent amount of air. As said already this morning the real problem
is the ducting and length it has to go. If I leave the door open in
the morning it warms up pretty fast.
http://tinyurl.com/5jx9w5
and
http://tinyurl.com/y8rrgd6
J.R.Wright
On Dec 11, 2009, at 11:04 AM, Ray Erspamer wrote:
> We have a 78 Royale and I installed a booster fan to get heat back
> to the bed area, turned out Coachman during their high quality
> assembly process just stuffed all of the extra 4" duct hose under
> the refrig platform and crushed it, even with a booster we got zero
> heat back there. I finally just grabbed the duct hose and ripped it
> out...literally, there has to be 3 or 4 feet stuffed into that
> space. Now I need to fish some new 4" hose through and see if I get
> better heat in the bedroom. If we don't, I'm going to pick up a 2nd
> furnace and install it under the bed and have a dedicated furnace
> just for the bedroom and rear half of the coach, I'll fab SS pipes
> to duct in the furnace exhaust and fresh combustion air.
>
> Last time we went out in Oct our rear bedroom was like a chest
> freezer.....
>
> Ray
>
> Ray & Lisa Erspamer
> 78 Royale Center Kitchen
> The Malosco Cruiser (TZE368V101144)
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
>
>
>
>
> ________________________________
> From: Jeff Willard <jwillard@oac-inc.com>
> To: gmclist@temp.gmcnet.org
> Sent: Fri, December 11, 2009 6:54:15 AM
> Subject: [GMCnet] Furnace Boost fan
>
>
>
> Does anyone out there have one of the furnace boost fans laying
> around on the parts pile? I'm sitting in central Pa right now after
> a flawless 2,200 mile cross country trip (see trip report). It's
> presently 19 degrees here and The furnace is struggling, especially
> in the bedroom and bathroom areas. I'm thinking a boost fan will
> help out.
> --
> Jeff Willard
> Silver City, NM
> 1973 ex-Glacier
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Furnace Boost fan [message #67189 is a reply to message #67182] |
Fri, 11 December 2009 11:42 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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I think the fans shown in the links below would work great, thing is this is what I have in my boat to vent the engine compartment and they are fairly noisy.
If there was a good high quality one, the CFM is definitely up there, may be worth a try.
Ray
Ray & Lisa Erspamer
78 Royale Center Kitchen
The Malosco Cruiser (TZE368V101144)
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: John Wright <powerjon@chartermi.net>
To: gmclist@temp.gmcnet.org
Sent: Fri, December 11, 2009 11:17:31 AM
Subject: Re: [GMCnet] Furnace Boost fan
Jeff & Ray
If you really have to have a fan which in the past have proven
marginal here are 2 examples that are reasonably priced and can move a
decent amount of air. As said already this morning the real problem
is the ducting and length it has to go. If I leave the door open in
the morning it warms up pretty fast.
http://tinyurl.com/5jx9w5
and
http://tinyurl.com/y8rrgd6
J.R.Wright
On Dec 11, 2009, at 11:04 AM, Ray Erspamer wrote:
> We have a 78 Royale and I installed a booster fan to get heat back
> to the bed area, turned out Coachman during their high quality
> assembly process just stuffed all of the extra 4" duct hose under
> the refrig platform and crushed it, even with a booster we got zero
> heat back there. I finally just grabbed the duct hose and ripped it
> out...literally, there has to be 3 or 4 feet stuffed into that
> space. Now I need to fish some new 4" hose through and see if I get
> better heat in the bedroom. If we don't, I'm going to pick up a 2nd
> furnace and install it under the bed and have a dedicated furnace
> just for the bedroom and rear half of the coach, I'll fab SS pipes
> to duct in the furnace exhaust and fresh combustion air.
>
> Last time we went out in Oct our rear bedroom was like a chest
> freezer.....
>
> Ray
>
> Ray & Lisa Erspamer
> 78 Royale Center Kitchen
> The Malosco Cruiser (TZE368V101144)
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
>
>
>
>
> ________________________________
> From: Jeff Willard <jwillard@oac-inc.com>
> To: gmclist@temp.gmcnet.org
> Sent: Fri, December 11, 2009 6:54:15 AM
> Subject: [GMCnet] Furnace Boost fan
>
>
>
> Does anyone out there have one of the furnace boost fans laying
> around on the parts pile? I'm sitting in central Pa right now after
> a flawless 2,200 mile cross country trip (see trip report). It's
> presently 19 degrees here and The furnace is struggling, especially
> in the bedroom and bathroom areas. I'm thinking a boost fan will
> help out.
> --
> Jeff Willard
> Silver City, NM
> 1973 ex-Glacier
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] Furnace Boost fan [message #67190 is a reply to message #67182] |
Fri, 11 December 2009 11:43 |
jayrabe
Messages: 509
Registered: June 2009
Location: Portland, OR
Karma: 0
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Senior Member |
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The West Marine models you showed had airflows ranging from 145 - 220 cfm. How does that compare to whatever presumably stock blower I have in my 76 Palm Beach? I've been thinking of replacing it, not so much for moving heat better, though I haven't really tested it's performance on that scale, but mostly because it's obnoxiously noisy.
Another question, I'm in Oregon, and though it's warmed up a bit today, we had a few days down to the teens, so I've been running the furnace constantly. It seems to be keeping the inside comfortably warm, though it is lots colder in the back where the full-size mattress is laying on top of the side bench seats and effectively blocks any air flow from the vents on the floor. But my question is, are the blowers designed for continuous operation? Am I risking burning up blower bearings by running it 24/7?
Thanks,
J "still haven't named her" Rabe
> From: powerjon@chartermi.net
> To: gmclist@temp.gmcnet.org
> Date: Fri, 11 Dec 2009 12:17:31 -0500
> Subject: Re: [GMCnet] Furnace Boost fan
>
> Jeff & Ray
> If you really have to have a fan which in the past have proven
> marginal here are 2 examples that are reasonably priced and can move a
> decent amount of air. As said already this morning the real problem
> is the ducting and length it has to go. If I leave the door open in
> the morning it warms up pretty fast.
>
> http://tinyurl.com/5jx9w5
> and
> http://tinyurl.com/y8rrgd6
>
> J.R.Wright
> On Dec 11, 2009, at 11:04 AM, Ray Erspamer wrote:
>
> > We have a 78 Royale and I installed a booster fan to get heat back
> > to the bed area, turned out Coachman during their high quality
> > assembly process just stuffed all of the extra 4" duct hose under
> > the refrig platform and crushed it, even with a booster we got zero
> > heat back there. I finally just grabbed the duct hose and ripped it
> > out...literally, there has to be 3 or 4 feet stuffed into that
> > space. Now I need to fish some new 4" hose through and see if I get
> > better heat in the bedroom. If we don't, I'm going to pick up a 2nd
> > furnace and install it under the bed and have a dedicated furnace
> > just for the bedroom and rear half of the coach, I'll fab SS pipes
> > to duct in the furnace exhaust and fresh combustion air.
> >
> > Last time we went out in Oct our rear bedroom was like a chest
> > freezer.....
> >
> > Ray
> >
> > Ray & Lisa Erspamer
> > 78 Royale Center Kitchen
> > The Malosco Cruiser (TZE368V101144)
> > Wauwatosa, Wisconsin 53226
> > Email: 78GMC-Royale@att.net
> > 414-745-3188
> > Web Site: http://ray-lisa.page.tl/
> >
> >
> >
> >
> > ________________________________
> > From: Jeff Willard <jwillard@oac-inc.com>
> > To: gmclist@temp.gmcnet.org
> > Sent: Fri, December 11, 2009 6:54:15 AM
> > Subject: [GMCnet] Furnace Boost fan
> >
> >
> >
> > Does anyone out there have one of the furnace boost fans laying
> > around on the parts pile? I'm sitting in central Pa right now after
> > a flawless 2,200 mile cross country trip (see trip report). It's
> > presently 19 degrees here and The furnace is struggling, especially
> > in the bedroom and bathroom areas. I'm thinking a boost fan will
> > help out.
> > --
> > Jeff Willard
> > Silver City, NM
> > 1973 ex-Glacier
> > _______________________________________________
> > GMCnet mailing list
> > List Information and Subscription Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > _______________________________________________
> > GMCnet mailing list
> > List Information and Subscription Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_________________________________________________________________
Hotmail: Powerful Free email with security by Microsoft.
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| Re: [GMCnet] Furnace Boost fan [message #67201 is a reply to message #67182] |
Fri, 11 December 2009 14:26 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
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|
The problem I see with the marine fans in the links below is that the 4" draws 5.5 amps. The 4" diameter axial fan that I got from McMaster has a 100cfm capacity and it draws approx. 0.5 amps.
Ray & Lisa Erspamer
78 Royale Center Kitchen
The Malosco Cruiser (TZE368V101144)
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: John Wright <powerjon@chartermi.net>
To: gmclist@temp.gmcnet.org
Sent: Fri, December 11, 2009 11:17:31 AM
Subject: Re: [GMCnet] Furnace Boost fan
Jeff & Ray
If you really have to have a fan which in the past have proven
marginal here are 2 examples that are reasonably priced and can move a
decent amount of air. As said already this morning the real problem
is the ducting and length it has to go. If I leave the door open in
the morning it warms up pretty fast.
http://tinyurl.com/5jx9w5
and
http://tinyurl.com/y8rrgd6
J.R.Wright
On Dec 11, 2009, at 11:04 AM, Ray Erspamer wrote:
> We have a 78 Royale and I installed a booster fan to get heat back
> to the bed area, turned out Coachman during their high quality
> assembly process just stuffed all of the extra 4" duct hose under
> the refrig platform and crushed it, even with a booster we got zero
> heat back there. I finally just grabbed the duct hose and ripped it
> out...literally, there has to be 3 or 4 feet stuffed into that
> space. Now I need to fish some new 4" hose through and see if I get
> better heat in the bedroom. If we don't, I'm going to pick up a 2nd
> furnace and install it under the bed and have a dedicated furnace
> just for the bedroom and rear half of the coach, I'll fab SS pipes
> to duct in the furnace exhaust and fresh combustion air.
>
> Last time we went out in Oct our rear bedroom was like a chest
> freezer.....
>
> Ray
>
> Ray & Lisa Erspamer
> 78 Royale Center Kitchen
> The Malosco Cruiser (TZE368V101144)
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
>
>
>
>
> ________________________________
> From: Jeff Willard <jwillard@oac-inc.com>
> To: gmclist@temp.gmcnet.org
> Sent: Fri, December 11, 2009 6:54:15 AM
> Subject: [GMCnet] Furnace Boost fan
>
>
>
> Does anyone out there have one of the furnace boost fans laying
> around on the parts pile? I'm sitting in central Pa right now after
> a flawless 2,200 mile cross country trip (see trip report). It's
> presently 19 degrees here and The furnace is struggling, especially
> in the bedroom and bathroom areas. I'm thinking a boost fan will
> help out.
> --
> Jeff Willard
> Silver City, NM
> 1973 ex-Glacier
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: Furnace Boost fan [message #67216 is a reply to message #67191] |
Fri, 11 December 2009 18:00 |
jwillard
Messages: 118
Registered: May 2004
Location: Silver City, NM
Karma: 0
|
Senior Member |
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All very good info and some great thoughts. I too have created a permenant bed in the back so there is no heat duct there. it's under the platform. I plan on adding a vent in the closet they comes off the hallway vent. Blocking off the vent under the bed gave me some airflow in the bathroom. I'm also going to block off some of the flow into the water pump area since it's now VERY warm. I was thinging as fan in the line might help but the comments seem to indicated it won't be worth the effort. ummmm.... more thinking is necessary I guess
Jeff Willard
Silver City, NM
1973 ex-Glacier
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| Re: [GMCnet] Furnace Boost fan [message #67220 is a reply to message #67216] |
Fri, 11 December 2009 18:28 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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My coach originally had twin beds and we made it a permanent King. I removed the duct under the bed and made a small box out in the corner under the closet, ran the duct up and then through the closet so we have the duct vent from the closet into the bedroom. But with the hose all crunched up under the refrigerator it was useless.
I will try a new duct hose and booster fan first, if that doesn't work I'm going to install a separate furnace under the bed, probably a small 10 to 16K btu with it's own thermostat back there, then we'll have all the heat we want under the bed and in the bedroom.
I put my coach away and winterized it way too early this year all because I froze half to death one weekend........next year it will be different.
Ray & Lisa Erspamer
78 Royale Center Kitchen
The Malosco Cruiser (TZE368V101144)
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Jeff Willard <jwillard@oac-inc.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, December 11, 2009 6:00:12 PM
Subject: Re: [GMCnet] Furnace Boost fan
All very good info and some great thoughts. I too have created a permenant bed in the back so there is no heat duct there. it's under the platform. I plan on adding a vent in the closet they comes off the hallway vent. Blocking off the vent under the bed gave me some airflow in the bathroom. I'm also going to block off some of the flow into the water pump area since it's now VERY warm. I was thinging as fan in the line might help but the comments seem to indicated it won't be worth the effort. ummmm.... more thinking is necessary I guess
--
Jeff Willard
Silver City, NM
1973 ex-Glacier
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] Furnace Boost fan [message #67245 is a reply to message #67175] |
Sat, 12 December 2009 07:39 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Charles Aulger, as usual, has had a fix for heat circulation for a
long time. You just have to be twice as observant as the average guy
to notice it. He replaced the duct run from the furnace, under the
kit counter back to the bed, with drain pipe and small, but plentiful,
outlets. No resistance due to corrugations in flex hose, just a
straight shot to the rear that takes advantage of the huge volume of
air that can be dilivered by the squirrel cage fan in the furnace. In
addition to working well, (Charles spends a lot of time in the
mountains dry camping) his system takes up a lot less space than that
flexible ducting.
I'm going to get around to copying that one of these days.
On Fri, Dec 11, 2009 at 8:04 AM, Ray Erspamer <78gmc-royale@att.net> wrote:
> We have a 78 Royale and I installed a booster fan to get heat back to the bed area, turned out Coachman during their high quality assembly process just stuffed all of the extra 4" duct hose under the refrig platform and crushed it, even with a booster we got zero heat back there. I finally just grabbed the duct hose and ripped it out...literally, there has to be 3 or 4 feet stuffed into that space. Now I need to fish some new 4" hose through and see if I get better heat in the bedroom. If we don't, I'm going to pick up a 2nd furnace and install it under the bed and have a dedicated furnace just for the bedroom and rear half of the coach, I'll fab SS pipes to duct in the furnace exhaust and fresh combustion air.
>
> Last time we went out in Oct our rear bedroom was like a chest freezer.....
>
> Ray
>
> Ray & Lisa Erspamer
> 78 Royale Center Kitchen
> The Malosco Cruiser (TZE368V101144)
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
>
>
>
>
> ________________________________
> From: Jeff Willard <jwillard@oac-inc.com>
> To: gmclist@temp.gmcnet.org
> Sent: Fri, December 11, 2009 6:54:15 AM
> Subject: [GMCnet] Furnace Boost fan
>
>
>
> Does anyone out there have one of the furnace boost fans laying around on the parts pile? I'm sitting in central Pa right now after a flawless 2,200 mile cross country trip (see trip report). It's presently 19 degrees here and The furnace is struggling, especially in the bedroom and bathroom areas. I'm thinking a boost fan will help out.
> --
> Jeff Willard
> Silver City, NM
> 1973 ex-Glacier
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
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| Re: Furnace Boost fan [message #67248 is a reply to message #67152] |
Sat, 12 December 2009 09:02 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
Karma: 0
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Senior Member |
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what do you use to replace the duct hose? second request.
i've looked at the alum dryer hose at the box store but i'm not sure.
Fred V
'77 Royale RB 455
P'cola, Fl
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| Re: [GMCnet] Furnace Boost fan [message #67251 is a reply to message #67165] |
Sat, 12 December 2009 09:41 |
Terry Skinner
Messages: 379
Registered: January 2004
Karma: 0
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Senior Member |
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This is what I have experienced with my '76. Took all that out and use
Steve's method. My biggest mistake in this department was purchasing
too large of a furnace. Cycles on and off before the interior gets
heat soaked. Would much rather it would come on at a lower BTU and run
long enough to warm up more than just the air.........Terry
On Fri, Dec 11, 2009 at 6:26 AM, Mr.erf ERFisher <mr.erfisher@gmail.com> wrote:
> they draw a lot of power and the problem is, by the time the air goes down
> the drivers side , across the back, and up to the bath, (all in an
> uninsulated pipe) the air is cold any way.
>
> gene
>
>
>
> On Fri, Dec 11, 2009 at 6:22 AM, Mike Miller <m000035@gmail.com> wrote:
>
>>
>>
>> I am pretty sure 1973 coaches did not come with "boost" fans. I THINK they
>> where added with all the other changes in 1975. Granted ANY of these
>> coaches could have ended up with one...
>>
>> Steven Ferguson wrote on Fri, 11 December 2009 05:53
>> > Jeff,
>> > I have a good one and it's yours but I suggest you check the wiring on
>> yours. ...
>> >
>> > On Fri, Dec 11, 2009 at 4:54 AM, Jeff Willard <jwillard@oac-inc.com>
>> wrote:
>> > >
>> > >
>> > > Does anyone out there have one of the furnace boost fans laying around
>> on the parts pile?
>> > --- snipped ---
>> > > Jeff Willard
>> > > Silver City, NM
>> > > 1973 ex-Glacier
>>
>>
>> --
>> Mike Miller
>> `73 26' X Painted D.
>> `78 23' Birchaven
>> Hillsboro, OR
>> _______________________________________________
>> GMCnet mailing list
>> List Information and Subscription 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
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Terry Skinner
253-686-2624
Roy. Washington
'76 GMC
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| Re: [GMCnet] Furnace Boost fan [message #67261 is a reply to message #67251] |
Sat, 12 December 2009 12:29 |
shawnee
Messages: 422
Registered: February 2004
Location: NC
Karma: 0
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Senior Member |
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| Terry Skinner wrote on Sat, 12 December 2009 10:41 |
This is what I have experienced with my '76. Took all that out and use
Steve's method. My biggest mistake in this department was purchasing
too large of a furnace. Cycles on and off before the interior gets
heat soaked. Would much rather it would come on at a lower BTU and run
long enough to warm up more than just the air.........Terry
|
Terry,
I also put in too large furnace. What I do is turn it on with full gas manual valve open to warm things up, then reduce the gas flow through the valve to reduce the furnace capacity. This eliminates the cycle on and off. Better to have too much capacity than not enough.
Gene Dotson
74 Canyonlands
www.bdub.net/Motorhome_Enhancements New Windows and Aluminum Radiators
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| Re: [GMCnet] Furnace Boost fan [message #67298 is a reply to message #67245] |
Sat, 12 December 2009 19:36 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
|
Senior Member |
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An added advantage is that the drain pipe is sure to be
less conductive of heat contained therin to the non-heated
"outside" air. I have seen similar air handling systems
advertised in "Log Home Living" magazine and they have
very unobtrusive outlets they use for the multiple delivery
points.
I would suspect that you would want to tap off the main pipe
at varying angles, with the most gentle angles at the farthest
distance from the source, with almost right angles used closest
to the furnace to "attempt" to get the same air quantities out
of each outlet.
YRMV [Your Results May Vary]
(Meaning I have no suggestions as to technique or proportions)
D C "Mac" Macdonald
OKlahoma City, OK
----------------------------------------
> Date: Sat, 12 Dec 2009 05:39:13 -0800
> From: botiemad11@gmail.com
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Furnace Boost fan
>
> Charles Aulger, as usual, has had a fix for heat circulation for a
> long time. You just have to be twice as observant as the average guy
> to notice it. He replaced the duct run from the furnace, under the
> kit counter back to the bed, with drain pipe and small, but plentiful,
> outlets. No resistance due to corrugations in flex hose, just a
> straight shot to the rear that takes advantage of the huge volume of
> air that can be dilivered by the squirrel cage fan in the furnace. In
> addition to working well, (Charles spends a lot of time in the
> mountains dry camping) his system takes up a lot less space than that
> flexible ducting.
> I'm going to get around to copying that one of these days.
>
> On Fri, Dec 11, 2009 at 8:04 AM, Ray Erspamer <78gmc-royale@att.net> wrote:
>> We have a 78 Royale and I installed a booster fan to get heat back to the bed area, turned out Coachman during their high quality assembly process just stuffed all of the extra 4" duct hose under the refrig platform and crushed it, even with a booster we got zero heat back there. I finally just grabbed the duct hose and ripped it out...literally, there has to be 3 or 4 feet stuffed into that space. Now I need to fish some new 4" hose through and see if I get better heat in the bedroom. If we don't, I'm going to pick up a 2nd furnace and install it under the bed and have a dedicated furnace just for the bedroom and rear half of the coach, I'll fab SS pipes to duct in the furnace exhaust and fresh combustion air.
>>
>> Last time we went out in Oct our rear bedroom was like a chest freezer.....
>>
>> Ray
>>
>> Ray & Lisa Erspamer
>> 78 Royale Center Kitchen
>> The Malosco Cruiser (TZE368V101144)
>> Wauwatosa, Wisconsin 53226
>> Email: 78GMC-Royale@att.net
>> 414-745-3188
>> Web Site: http://ray-lisa.page.tl/
>>
>>
>>
>>
>> ________________________________
>> From: Jeff Willard
>> To: gmclist@temp.gmcnet.org
>> Sent: Fri, December 11, 2009 6:54:15 AM
>> Subject: [GMCnet] Furnace Boost fan
>>
>>
>>
>> Does anyone out there have one of the furnace boost fans laying around on the parts pile? I'm sitting in central Pa right now after a flawless 2,200 mile cross country trip (see trip report). It's presently 19 degrees here and The furnace is struggling, especially in the bedroom and bathroom areas. I'm thinking a boost fan will help out.
>> --
>> Jeff Willard
>> Silver City, NM
>> 1973 ex-Glacier
>> _______________________________________________
>> GMCnet mailing list
>> List Information and Subscription Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> _______________________________________________
>> GMCnet mailing list
>> List Information and Subscription Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Steve Ferguson
> '76 EII
> Sierra Vista, AZ
> Urethane bushing source
> www.bdub.net/ferguson/
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
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