If you were Registered and logged in, you could reply and use other advanced thread options
|
Posted by RichK on November 23, 2007, 1:58 pm
Hi All,
With heating season starting in my area, I was changing the filter. Started
the furnace to check the flame. Flame on all 3 burners are blue for about
1-1.5 inch, but above that they are yellow. Furnace is >20 years old Lenox.
Is there are efficiency problem with the flames as described above?
Thanks,
RichK
|
 
| |
Posted by Zyp on November 23, 2007, 4:09 pm
RichK wrote:
> Hi All,
>
> With heating season starting in my area, I was changing the filter.
> Started the furnace to check the flame. Flame on all 3 burners are
> blue for about 1-1.5 inch, but above that they are yellow. Furnace
> is >20 years old Lenox.
>
> Is there are efficiency problem with the flames as described above?
>
> Thanks,
>
> RichK
1) Are you sure the flame tips are yellow, or are they orange?
2) If they are yellow, your likely not burning efficiently. Your primary
air is lacking. This can cause sooting and heat exchanger impingment. A
cool flame is not only inefficient, it's dangerous. Sooting causes the heat
exchanger to become blocked and will inhibit the products of combustion from
traveling out the flue.
You should call a professional who can observe, and make adjustments to your
furance as needed.
--
Zyp
|
|
Posted by RichK on November 24, 2007, 4:08 pm
Thanks Zyp,
> 1) Are you sure the flame tips are yellow, or are they orange?
You are right, they are closer to blue/orange. Also after a few minutes,
they are becoming more blue.
> 2) If they are yellow, your likely not burning efficiently. Your primary
> air is lacking.
That was my concern, but appears it's not as bad, as I initilly thought.
> You should call a professional who can observe, and make adjustments to
your
> furance as needed.
Have not been happy with local Pros. Several serviced this furnca and none
has spotted the pilot set WAY high, which was costing me money. It was help
from this group that guided me to adj it myslef.
I try get a feel for a problem, before I call for a bigger gun :-)
Regards,
RichK
|
|
Posted by on November 23, 2007, 4:14 pm
>Hi All,
>
>With heating season starting in my area, I was changing the filter. Started
>the furnace to check the flame. Flame on all 3 burners are blue for about
>1-1.5 inch, but above that they are yellow. Furnace is >20 years old Lenox.
>
>Is there are efficiency problem with the flames as described above?
>
>Thanks,
There is no way to tell without a combustion analyzer.
|
|
Posted by Robert Hancock on November 27, 2007, 12:16 am
RichK wrote:
> Hi All,
>
> With heating season starting in my area, I was changing the filter. Started
> the furnace to check the flame. Flame on all 3 burners are blue for about
> 1-1.5 inch, but above that they are yellow. Furnace is >20 years old Lenox.
>
> Is there are efficiency problem with the flames as described above?
A lot of times they will run an orange color if the furnace is dusty or
there's dust in the air around it, as that's what color the dust seems
to burn. Yellow color (like a candle or cigarette lighter) is the bad
one, though if it's burning orange a lot of the time, it likely needs a
cleaning..
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/
|
| Similar Threads | Posted | | Oil smell from furnace (when fan is on but flame out, I think) | December 10, 2006, 9:38 am |
| Furnace pilot flame adjust | October 27, 2005, 1:07 am |
| Gas Furnace Flame Jets Start, then Die Out | February 26, 2007, 11:20 am |
| Gas Furnace problem:no flame, fan runs | March 6, 2007, 1:54 pm |
| How to adjust oil furnace electrodes and flame? | October 30, 2008, 6:38 pm |
| Gas Furnace Problem--Trouble maintaining main burner flame | February 21, 2008, 9:23 pm |
| Furnace Efficiency | August 31, 2006, 12:32 am |
| Bryant gas furnace age and efficiency | September 13, 2005, 5:54 pm |
| high efficiency gas furnace advice please | October 6, 2005, 2:12 pm |
| High efficiency furnace questions | November 19, 2005, 2:20 pm |
|
|
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap