Denray Posted November 22, 2013 Report Share Posted November 22, 2013 Is it OK for the cap to be a B vent? Click to Enlarge 62.33 KB Quote Link to comment Share on other sites More sharing options...
mjr6550 Posted November 23, 2013 Report Share Posted November 23, 2013 No. B-vent is only rated for gas. I assume the cap is aluminum, which is used for b-vents. L-vents are used for oil. L-vents are stainless steel. I think the aluminum would corrode. I don't know how long it would take to corrode. Quote Link to comment Share on other sites More sharing options...
Denray Posted November 23, 2013 Author Report Share Posted November 23, 2013 Thank you Quote Link to comment Share on other sites More sharing options...
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