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  #1  
Old 11/15/08, 11:55 AM
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Default Is this a gas "leak"?

This is the first time I've ever even tested for a gas leak in this area of a furnace. Got a definite positive reading here but I'm not sure if it should be classified as a leak, as it is near what I'd call the jets. The furnace was not running during this test.

111408 151.JPG



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  #2  
Old 11/15/08, 3:52 PM
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Default Re: Is this a gas "leak"?

Anybody know the answer? You get a free prize!



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Old 11/15/08, 4:36 PM
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Default Re: Is this a gas "leak"?

Writeup for HVAC contractor. There will be some presence of gas present at the burner orifices when the gas valve shuts down and will take time to dissipate. Honeywell had an article about this an the correct method of testing is a device called a bubbleometer.
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Old 11/15/08, 4:39 PM
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Default Re: Is this a gas "leak"?

Thanks Gary!

P.S. You are the winner of a free chicken fried steak plate at Eddie's Restaurant in Hickory Grove, SC!



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  #5  
Old 11/15/08, 11:03 PM
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Default Re: Is this a gas "leak"?

Lots of questions are needed. Had the furnace been recently run? How large of a leak did it detect, the detector can pick up small amounts of residue. Have you ever tried sticking the probe in the fire (haha)? Did you know that your detector can identify a cracked heat exchanger?



Be honest to the home and everything else will fall in place.
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  #6  
Old 11/16/08, 12:25 AM
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Default Re: Is this a gas "leak"?

Quote:
Originally Posted by jfunderburk View Post
This is the first time I've ever even tested for a gas leak in this area of a furnace. Got a definite positive reading here but I'm not sure if it should be classified as a leak, as it is near what I'd call the jets. The furnace was not running during this test.

Attachment 25255
Did you smell gas?

I never use mine unless I need to narrow down what I suspect.

Those things are so darn sensitive they think pipe dope is gas.

That being said the Tiff has helped me save a few lives ,I am sure.
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  #7  
Old 11/16/08, 7:55 AM
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Default Re: Is this a gas "leak"?

No.

Unless you have more information to add about sniffer reactions in other locations...

The header is not purged at shutdown.
There is gas in there. There is no way for it to get out.



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Old 11/16/08, 5:14 PM
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Default Re: Is this a gas "leak"?

Quote:
Originally Posted by dandersen View Post
No.

Unless you have more information to add about sniffer reactions in other locations...

The header is not purged at shutdown.
There is gas in there. There is no way for it to get out.

What David said.




"Do wah diddy diddy dum diddy do."
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ps some of the opinions I have posted here may or may not be factually based.




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  #9  
Old 11/16/08, 9:58 PM
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Default Re: Is this a gas "leak"?

Thanks for all the feedback. I didn't write it up. Too many unanswered questions. Referred it to an HVAC guy for other issues, however.

Paul, enlighten me. How can a sniffer detect a cracked heat exchanger?



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Alpha & Omega Home Inspections, LLC
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  #10  
Old 11/17/08, 5:53 PM
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Default Re: Is this a gas "leak"?

Quote:
Originally Posted by jfunderburk View Post
Thanks Gary!

P.S. You are the winner of a free chicken fried steak plate at Eddie's Restaurant in Hickory Grove, SC!
Oh no... those cooking Chickens are as far South as S.C. now?



"It's not what you believe that matter's.... it matter's what you believe!"
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Old 11/18/08, 7:13 AM
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Default Re: Is this a gas "leak"?

Quote:
Originally Posted by jfunderburk View Post
Thanks for all the feedback. I didn't write it up. Too many unanswered questions. Referred it to an HVAC guy for other issues, however.

Paul, enlighten me. How can a sniffer detect a cracked heat exchanger?

Using AGA approved mathane/nitrogen gas injection test method for one.
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  #12  
Old 11/21/08, 10:54 AM
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Default Re: Is this a gas "leak"?

We rip open a 12 year old gas-fired furnace, pull out the exchanger, and find a crack.

So cool. It's HVAC training from your office chair!

Coming soon....




BEN GROMICKO
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NACHI.TV: Author, Director, Editor of Training Videos:
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  #13  
Old 11/21/08, 9:39 PM
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Default Re: Is this a gas "leak"?

It's here.


Many inspectors are weak in the HVAC area. Myself included.

Until now. Advanced HVAC training video.

$199. Limited time only price. Price goes up when the next course comes online. Buy now. Watch later. Unlimited viewing.

It's 21 CE credit hours. That's $9.47 per hour.

Learn HVAC from your comfortable couch.

2-min commercial




BEN GROMICKO
InterNACHI's Director of Education and Training

NACHI.TV: Author, Director, Editor of Training Videos:
Stairway Inspection
Electrical Inspection
Egress Inspection
Inspecting Water Tanks
Infrared Thermography
Bored Holes Cuts Notches
Crawlspace Inspection
Mold
SOP Home Inspection
Electrical Wall of Defects
HVAC Training
Your Best Inspection

Author of Online Courses:
Plumbing Inspection
Mold Training
Wood Destroying Organism
25 Standards Inspectors Should Know

Moisture Intrusion
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