Litman Chimney Elbow

Old 03-31-11, 06:37 AM
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Litman Chimney Elbow

Good morning!

I was wondering if anyone on the forum has heard of or successfully installed a "Litman Chimney Elbow". I've searched the Interwebs and only found reference to it on a few sites, such as How to Diagnose Oil Burner Noise, Smoke, Odors - Defects & Operating Problems Found on Hot Water Heating Boilers which states:

" Litman chimney elbow: Lanthier describes an idea from Roger Litman (North Shore Fuel) who adds an elbow at the end of a flue pipe run in the base of a chimney to reduce chimney noise. The elbow both reduced noise and improved chimney draft, perhaps because the elbow adds length and thus velocity to incoming chimney vent products. Add a drainage hole in the low point of the elbow, and "get the outlet of the elbow to angle about 15 degrees to the base". "

Thoughts? Successes? Criticisms?

Thanks in advance!

Old 03-31-11, 04:40 PM
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I've never seen or heard of one but it sounds like it is contrary to any installation instructions I've ever seen.

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