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Sacie,<br>
<br>
I don't suppose that you have any pictures of the installation but
if you do, I'd like to see one. There must have been something that
allowed the wind to product enough lift to raise the cap. If it was
counter-balanced with a spring as, I described in another email,
perhaps the spring lift needed to be adjusted; a straight, 4' duct
run may have required less help to lift the cap and the cap may have
been too close to dead neutral. The displacement of the fan you
used would be another key factor.<br>
<br>
The need for site adjustment of the spring, which I assumed, was one
reason I never tried very hard to sell the idea to a client.<br>
Bob Klahn<br>
<br>
On 9/21/2011 3:40 PM, Sacie Lambertson wrote:
<blockquote
cite="mid:CAM6L0t6RfG46y4LHn9LsFJaBpi5_3NXh0fTBy4b4og5xieqs5g@mail.gmail.com"
type="cite"><font size="4"><font face="tahoma,sans-serif">Interesting
about this Heartland duct. I bought one some years ago from
our local electric coop to use in conjunction with a exhaust
fan in a bathroom. The connecting pipe is less than four feet
and straight. Every time we get a blowing hard rain the thing
leaks like a sieve through the exhaust screen in the
bathroom. It's a real mystery to us since it looks like no
water can enter the vent and we find no cracks around the
outside where it is connected to the house wall. If the thing
is highly recommended I suspect there is something unique to
our situation that I don't observe.<br>
<br>
sacie<br>
</font></font><br>
<div class="gmail_quote">On Wed, Sep 21, 2011 at 12:34 PM, Bob
Klahn <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:Home-NRG@dnaco.net">Home-NRG@dnaco.net</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div bgcolor="#FFFFFF" text="#000000"> Rob,<br>
<br>
I've used and recommended the Heartland for years. IMHO,
it's the only outside dryer fixture with even a hope of
preventing backdrafts - and it does that reliably. <br>
<br>
It's also provides the easiest access for clean-out of the
duct of any system I've seen or tried.<br>
<br>
Most clients love it, once they get past the "mushroom"
appearance. <br>
<br>
I have only heard of one complaint. A friend, not a
client, said that when he tried one, his dryer took longer
to work. I haven't seen his system and he didn't provide
more detail, but this is completely at odds with other
feedback.<br>
<br>
I suspect that his duct run may be the real problem - too
many elbows and/or a long flexible duct run - but I have not
had an opportunity to check further. I believe he
mentioned that the cup never rose fully; also odd. However,
it was a chance comment on meeting in the street, so details
and my memory are sketchy.<br>
<br>
If you install one, I recommend making sure the connecting
duct is - or converting your current exhaust run to -
straight, smooth pipe; sealed and with the minimum length
and fewest turns possible. Where possible, use two 45's in
place of a 90 degree elbow. Make sure the pipe seals to the
dryer discharge and the outside vent. If a short, straight
run is not practical, change the duct to 6" (most
installations I see are usually 4"), with a reducer at the
dryer if necessary. The Heartland is set up to accommodate
a 6" duct for a reason.<br>
<br>
If the run is long, or convoluted, consider adding a
clean-out access at a point that will let you sweep the full
length. (Lint build-up could be another of my friend's
problems, and a fire hazard to boot.)<br>
<br>
I hope this is useful,<br>
<font color="#888888"> Bob Klahn</font>
<div class="im"><br>
</div>
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