| COACH FURNACE RECREATION? CAN A LESS POWER HUNGRY FAN BE USED? [message #340853] |
Sun, 10 February 2019 13:06  |
GatsbysCruise
Messages: 261
Registered: January 2017
Location: Waukegan, Illinois
Karma: 3
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Senior Member |
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UGH! ! This is a second attempt at posting. The first one disappeared.
Apologies if you get two postings...
The Coach Furnace is a power pig. if you are booning and you turn the furnace on to heat overnight, you will most likely wake to a cold coach and dead battery.
It is the nature of the beast and the RV market has lived with this problem up to this very day. There has been no improvement.
To counter this RV owners, especially those that boon with no outside power source, have turned to unvented propane heaters, catalytic and blue flame.
Granted, these all work well, they make the interior toasty warm but can use up the oxygen and infiltrate your interior breathable air with carbon monoxide.
I am one of those, I have a buddy heater and it puts out a good heat for its size. I liked it a lot, up until the day it made a funny noise and bursted into
flames.
My heater had an internal fitting fail and it just started to leak propane gas while it was running.
I did post comments about this and I STRONGLY RECOMMEND that you only use this type of heater when you are there to monitor it and not run it when you are sleeping or away from the coach. It is potentially dangerous.
https://www.youtube.com/watch?v=noAHa0LfNcY
https://www.youtube.com/watch?v=hh11VPUoKXI
https://www.youtube.com/watch?v=c5PA3oP6yJg
So back to the coach furnace. Has anyone attempted to replace the power hungry fans with a lower powered fan, like a computer type muffin fan? Is it possible?
If it has not been done yet, there must be a reason, hopefully OTHER than making money, as to why the industry has not attempted to remedy this problem.
Thanks for reading
GatsbysCruise. \
74GMC260 Former Glacier Model style. \
Waukegan, Illinois \ Keep those MiniDiscs Spinning \ MY GREYHOUND IS FASTER THAN YOUR HONOR ROLL STUDENT \ WindowsXP-Win7-Win8.1-UBUNTU STUDIO - UBUNTU VOYAGER - Berzin Auto Center
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| Re: COACH FURNACE RECREATION? CAN A LESS POWER HUNGRY FAN BE USED? [message #340883 is a reply to message #340853] |
Mon, 11 February 2019 07:15  |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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I've a Suburban the PO installed not long before I got the coach. The battery holds it up overnight without any problems at the two venues I used to visit which required dry camping.
--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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| Re: COACH FURNACE RECREATION? CAN A LESS POWER HUNGRY FAN BE USED? [message #340899 is a reply to message #340853] |
Mon, 11 February 2019 10:53 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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I'd check to see if your motor bearings need oiling and if your house battery is losing capacity with age. I'm sure there is something out there like a digital brushless motor but that would require some research for proper RPM and sizing.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] COACH FURNACE RECREATION? CAN A LESS POWER HUNGRY FAN BE USED? [message #340919 is a reply to message #340895] |
Mon, 11 February 2019 15:46 |
gmc-email-list
Messages: 124
Registered: February 2019
Karma: 2
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Senior Member |
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Using two 6 volt Deep Cycle battery in my experience is lot better than a
12 Volt DS.
Being a frugal Ornamental, I do no waste 12 volt power
On Mon, Feb 11, 2019 at 1:40 PM Richard Denney via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Not my experience. The new Suburbans are identical to the old, and probably
> no better than 80% efficient.
>
> Mine is anything but silent, but it’s no noisier that my CPAP machine (or
> my previous snoring).
>
> How much of a hit it makes on the battery depends on how much the furnace
> has to run to keep it tolerable in the coach. GMCs were never optimized for
> really cold weather. For temps down into the 30’s, I can run my furnace all
> night with no worries. With temps in the teens, it might have to run
> continuously to satisfy the thermostat. I don’t know where that line is. If
> I wanted to use my coach in weather that cold, I’d start with insulation,
> including insulated covers for the windows.
>
> Rick “who installed a new suburban in the case of an old Suburban without
> modification” Denney
>
> On Sun, Feb 10, 2019 at 2:31 PM Sammy Williams via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Have you checked new furnaces? I'd imagine the newer furnaces are very
> fuel
>> efficient. I use a small room heater in my RV and it's never failed me or
>> killed the house batteries. It also has a quiet built in fan. Disclaimer
> I
>> can sleep in a rock concert so what I call quiet might not be yours. :)
>>
>> Sammy Williams
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> --
> Rick Denney
> 73 x-Glacier 230 "Jaws"
> Off-list email to rick at rickdenney dot com
> _______________________________________________
> 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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| Re: [GMCnet] COACH FURNACE RECREATION? CAN A LESS POWER HUNGRY FAN BE USED? [message #340920 is a reply to message #340919] |
Mon, 11 February 2019 16:14 |
gmc-email-list
Messages: 124
Registered: February 2019
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Senior Member |
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I just replaced my Sol Aire heater with an Attwood 8531-LD hydroflame 30,000 btu size. The book says it uses 7.8 amps. I selected this furnace because:
(1) similar size to the old furnace, allowing me to use alot of the existing ductwork.
(2) Higher efficiency
(3) Uses a single 3 1/2" hole for both the combustion air inlet and exhaust
As our friendly Jim has in his coach, two 6V deep cycle batteries in ours. It runs about four or five nights without a battery charge. For us, dry camping is something we might do over a long weekend, but no longer, so the run time is just fine for us.
> On February 11, 2019 at 1:46 PM Jim Kanomata via Gmclist wrote:
>
>
> Using two 6 volt Deep Cycle battery in my experience is lot better than a
> 12 Volt DS.
> Being a frugal Ornamental, I do no waste 12 volt power
>
> On Mon, Feb 11, 2019 at 1:40 PM Richard Denney via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Not my experience. The new Suburbans are identical to the old, and probably
>> no better than 80% efficient.
>>
>> Mine is anything but silent, but it’s no noisier that my CPAP machine (or
>> my previous snoring).
>>
>> How much of a hit it makes on the battery depends on how much the furnace
>> has to run to keep it tolerable in the coach. GMCs were never optimized for
>> really cold weather. For temps down into the 30’s, I can run my furnace all
>> night with no worries. With temps in the teens, it might have to run
>> continuously to satisfy the thermostat. I don’t know where that line is. If
>> I wanted to use my coach in weather that cold, I’d start with insulation,
>> including insulated covers for the windows.
>>
>> Rick “who installed a new suburban in the case of an old Suburban without
>> modification” Denney
>>
>> On Sun, Feb 10, 2019 at 2:31 PM Sammy Williams via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> Have you checked new furnaces? I'd imagine the newer furnaces are very
>> fuel
>>> efficient. I use a small room heater in my RV and it's never failed me or
>>> killed the house batteries. It also has a quiet built in fan. Disclaimer
>> I
>>> can sleep in a rock concert so what I call quiet might not be yours. :)
>>>
>>> Sammy Williams
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> --
>> Rick Denney
>> 73 x-Glacier 230 "Jaws"
>> Off-list email to rick at rickdenney dot com
>> _______________________________________________
>> 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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