[PUP] Selen or Kadey Krogen?

[Steve Harmer]

We have just done 4000 miles in our first year on a Nordhavn 62 with a wet
exhaust and have never had any smell/problems related to it at all.
Certainly keeps the roof of the pilothouse cleaner!
Steve H



On 2/19/09 2:07 PM, "David Evans" <highpressure at gmail.com> wrote:

> John,  Tim and Barbara,
> 
> This is a very important topic which I am actively debating ( with myself )
> in fact I just sent a note to Scott Bulger to elicit his opinion
> about the "necessity" of dry exhaust on a coastal cruiser. I was wishing
> American Tugs could be ordered with  a Lugger, dry exhaust and a Nordhavn
> gravity fuel system.  The gas powered boats I've owned were always having
> trouble with the exhaust risers and it seems like a good idea in the long
> run to keep salt water away from your metal engine parts. The fishermen have
> been using dry exhaust for decades, altough I have heard  it argued that
> this was merely the cheaper way to go.  However,  this would seem not to be
> the case with a yacht. I best order the article and read what Dave Gerr has
> to say. I am interested in your experiences too.
> 
> Thank-you
> 
> David E.
> Poulsbo/Keyport, Wa.,
> Currently in Glendale, Az.,
> On Thu, Feb 19, 2009 at 10:19 AM, John Marshall <johnamar1101 at gmail.com>wrote:
> 
>> I stand corrected Tim.
>> 
>> Perhaps the various wet exhaust boats I've been on didn't handle the
>> exhaust correctly, but I could always smell a bit of burned diesel,
>> especially with a following or quartering wind. (But none of them were
>> wet-exhaust Nordhavns). Given we're pretty slow, the wind is often
>> blowing from the back.
>> 
>> Or maybe I'm just hyper-sensitive to the fumes.
>> 
>> John
>>  On Feb 19, 2009, at 10:00 AM, Tim Johnson wrote:
>> 
>>> I take exception to John Marshall's comment re the
>>> "uninhabitability" of the cockpit on wet exhaust boats.  I've owned
>>> six wet exhaust boats of various types.  Those with the exhaust
>>> exiting the stern through a flat transom can suffer from the
>>> "station wagon" effect at higher speeds, resulting in exhaust fumes
>>> being sucked back into the cockpit.  This can be unpleasant.  On my
>>> last two boats, a Nordhavn 57 and 64, the exhaust exits at the aft
>>> starboard corner through an outlet that is underwater at about six
>>> knots.  The exhaust is thus swept back behind the boat and does not
>>> come into the cockpit.  There is no exhaust odor in the cockpit.
>>> 
>>> The wet vs. dry debate is endless.  For a thorough discussion of the
>>> issue, I suggest Dave Gerr's article in the February/March and April/
>>> May 2008 issue of Professional Boat Builder:  After weighing the
>>> plusses and minuses of each choice, Gerr concludes:  "[M]y
>>> preference is for wet exhaust on yachts and most small passenger
>>> vessels.   I think the majority of boat owners will be happier
>>> living with a wet exhaust."
>>> 
>>> 
>>> Tim Johnson
>>> M/V CLAIRBUOYANT
>>> Nordhavn 64 #06
>>> tim at timandclair.com
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