[C320-list] Hot water heater issue

[Mark Gillingham]

Do you recall the dimensions and type of the short host at the top of the
heater--the hot side? I'm having trouble matching it.

Are you saying that if the host blows off often, the relief valve may be
broken? My host blows of regularly for the past two seasons.

Mark

Speakeasy #612


On Tue, May 8, 2012 at 4:15 PM, Paul Rickman <ilove2sail at verizon.net> wrote:

> Chuck,
>
> I've blown a hose off before, but in my case I thought it was because the
> back flow preventer (plastic at the time) was installed too close to the
> heater.
> I lengthened the hose coming off the hot side, and bought a new brass back
> flow
> preventer. Have not had a hose blow off since. Last year I installed a new
> pressure
> relief valve (early in the season) because I thought the old one was
> leaking.
> According to Seaward, all the valves are the same on their heaters. 13
> years seems
> a short time for the heater to fail. My earlier point about the anode, is
> that perhaps
> it failed due to not having an anode. The aluminum tank has a lap seal,
> and that
> is what failed. Who knows, it's a boat.
>
> Paul
> Affinity 657
>
>
>
>
> ________________________________
>  From: Chuck and Kathy Mueller <katchu at chartermi.net>
> To: c320-list at lists.catalina320.com
> Sent: Tuesday, May 8, 2012 4:59 PM
> Subject: [C320-list] Hot water heater issue
>
> Hi Paul -
>
> I found that if you have the water system pressurized and then turn on the
> water heater, that it builds up a lot of extra pressure.  In my case, it
> blew a hose off and pumped all the water from the tanks into the bilge
> before I figured out the problem.  So now I shut off the water pump and
> relieve the pressure before I either turn on the heater or run the engine.
> That keeps the pressure down and might help my water heater to last a
> little longer.
>
> Chuck Mueller
> Northwind #676
> Holland, MI
> ------
> >
> > Message: 1
> > Date: Tue, 8 May 2012 05:56:28 -0700 (PDT)
> > From: Paul Rickman <ilove2sail at verizon.net>
> > To: "C320-List at Catalina320.com" <C320-List at Catalina320.com>
> > Subject: [C320-list] Hot Water Heater/Commissioning
> > Message-ID:
> > <1336481788.97753.YahooMailNeo at web84516.mail.ne1.yahoo.com>
> > Content-Type: text/plain; charset=iso-8859-1
> >
> > All,
> > ?
> > Last week when getting ready to launch I filled the water
> > tanks, purged the air from the system and used water
> > for several days.?I was getting ready to start cleaning
> > the inside of the boat, flipped on the hot water heater
> > and was having a snack, waiting on the water to heat.
> > I guess after an hour or so, I heard this mini explosion
> > and water started flowing from under the sink. My
> > water heater had failed. Defender lists the new Seaward
> > S600 for 250.00, my local marina parts dept wanted
> > 417.00.? I now have a new heater and I am happily in
> > the water.
> > ?
> > I do not know what made the heater fail. But the heater
> > does not come with an anode installed, in fact no one
> > stocks them. Called Seaward, they will ship one out for
> > 8 bucks.
> > ?
> > Paul
> > Affinity 657
> > Bay Bridge Marina
> > Chesapeake Bay, Maryland
> >
>