|
|
| Author |
Message |
jholmes
Joined: 23 Mar 2006
Posts: 69
Location: Eagan, MN
|
 Posted: Fri Sep 29, 2006 3:31 am Post subject: Checking Furnace Gas Pressure |
 |
|
I'm doing some fall maintenance to my furnace prior to the start of the heating season, and I wanted to check the gas pressure...the supply pressure , and the manifold pressure. According to my furnace manual they need to be 5.5-11" and 3.5" WC respectfully.
What is " WC?
How do I measure this?
Is there a meter I can buy?
Should I just leave it be, and assume it's fine?
Should a pro be messing with this?
The reason I want to check is I don't think the burner flame propagation is good, even though I've adjusted the burners. I think the too much gas coming out! |
|
| Back to top |
|
 |
webmaster
Site Admin
Joined: 06 Jun 2005
Posts: 117
Location: Appleton, WI
|
| Posted: Sat Sep 30, 2006 4:08 pm Post subject: |
|
|
This is not something that you should be dealing with, especially if it's propane! (Although based upon the pressures your listing I believe it's natural gas) Call a certified HVAC technician, because they have the proper instrumentation and know-how to correct your problem.
With that said, I can answer some of your questions! 
Inches of Water, WC actually stands for Water Column. It's a measurement of pressure such as PSI, or more similarly, Inches of Mercury, which is used for barometric pressure.
| Quote: | | How do I measure this? |
With a manometer. There are digital manometers you can purchase, but you can also construct a U manometer.
| Quote: | | Is there a meter I can buy? |
See above
| Quote: | | Should I just leave it be, and assume it's fine? |
No, improper burner adjustment or manifold pressure can cause the improper combustion of fuel (gas) and cause improper levels of byproduct, in particular carbon monoxide.
| Quote: | | Should a pro be messing with this? |
Yes, this is not a DIY job! |
|
| Back to top |
|
|
goddess girl
Joined: 17 Jun 2006
Posts: 29
|
| Posted: Sun Oct 01, 2006 3:27 pm Post subject: |
|
|
| Quote: | | Is there a meter I can buy? |
You can buy expensive digital manometers, but I would make a U tube manometer instead. Here is a great article for this, and it costs less than $5! |
|
| Back to top |
|
|
|
Articles
Forums
Search
FREE Registration!
Users Control Panel
Log in
FAQ
