<div dir="ltr">I have seen this done with an extra 90 degree elbow. So on 90 degree elbow turns form vertical to horizontal (say to the LEFT of the vertical pipe), the other one goes from horizontal to just above horizontal (OUT from the vertical pipe).<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jul 18, 2017 at 9:36 AM, Jim Stone <span dir="ltr"><<a href="mailto:1789alpine@gmail.com" target="_blank">1789alpine@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">
<p class="MsoNormal">I need to refine the vent for the water heater in my garage that
provides heat for the radiant floor heating system and on demand hot water for the attached
living space. Right now, the 2 inch vent
goes straight out the wall, but the building code requires that it be 2 feet
from a vented or unvented soffit, which means that the pipe currently sticks
out about 3 feet from the outside wall.
It is high up enough that safety isn’t an issue, but it looks really crappy
and I’d like to do something better. I
think the best solution is to install a 90° elbow, run the pipe a couple of
feet away, and then go straight through the soffit and
vent vertically with a couple of elbows at the top to form a “U”. (The design of the building doesn’t allow me to simply elbow and go straight up from the current location.) Now, here’s
the problem:<u></u><u></u></p><p class="MsoNormal">I can accomplish everything described above and still stay
within the maximum length for the vent pipe plus the elbows. However, the manufacturer also specifies that
the run should be pitched back towards the unit ¼” per foot so that condensation
runs back down and drains. I have room
to do that, but a 90° elbow off of a pitched horizontal pipe would put the vertical
run at a similar angle. (I hope that
makes sense.) It would seem like I need
something like a 95° elbow. Does such a
thing exist? I MIGHT have room to elbow out and up to eliminate the problem, but that would look like crap and the extra elbow would impact the allowable run. I have tried heating and
bending PVC before, but that doesn’t work very well. Since pitching pipe for drainage is a common
requirement, I have to assume this isn’t a unique problem. How do I handle it? </p><p class="MsoNormal">Thanks,<u></u><u></u></p><p class="MsoNormal">Jim<u></u><u></u></p>
</div><br>______________________________<wbr>_________________<br>
<br>
<a href="mailto:Shop-talk@autox.team.net">Shop-talk@autox.team.net</a><br>
Donate: <a href="http://www.team.net/donate.html" rel="noreferrer" target="_blank">http://www.team.net/donate.<wbr>html</a><br>
Suggested annual donation $12.96<br>
Archive: <a href="http://www.team.net/archive" rel="noreferrer" target="_blank">http://www.team.net/archive</a><br>
Forums: <a href="http://www.team.net/forums" rel="noreferrer" target="_blank">http://www.team.net/forums</a><br>
Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/shop-talk/jdinnis@gmail.com" rel="noreferrer" target="_blank">http://autox.team.net/mailman/<wbr>options/shop-talk/jdinnis@<wbr>gmail.com</a><br>
<br>
<br></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">=================================<br>= Never offend people with style when you =<br>= can offend with substance --- Sam Brown =<br>=================================</div>
</div>