100% shut off gas valves and LP furnaces

Originally Posted By: Mark Reagin
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Why do most gas furnaces have “100% shut off” gas valves and why are they required on all LP fired furnaces? I appreciate any information you can provide. Thanks, Mark


Originally Posted By: dvalley
This post was automatically imported from our archived forum.



Mark,


If gas leaks, you'd want to shut it off, Right?


--
David Valley
MAB Member

Massachusetts Certified Home Inspections
http://www.masscertified.com

"Some cause happiness wherever they go; others, whenever they go."

Originally Posted By: Mark Reagin
This post was automatically imported from our archived forum.



The answer may be that 100% shut off is more critical on LP vs. natural gas because LP gas leaking from unlit pilot will collect while natural gas would more quickly dissipate?