Re: Re: Furnace oddities.

the fan doesn't blow into the flame chamber, just around the outside of it. that's how they keep the fumes away from the people. the combustion air comes in from the outside exhaust on the side.

 

t the e

vt

----- Original Message -----

From: listermann42

To: toyota-campers@xxxxxxxxxxxxxxx

Sent: Thursday, March 30, 2006 2:04 PM

Subject: [toyota-campers] Re: Furnace oddities.

--- In toyota-campers@xxxxxxxxxxxxxxx, "wme013" <wme@...> wrote:
>
> See if your furnace will run the fan if the thermostat is turned
up.
> That way you can clear out the chamber and try for a relight
sooner.

I tried that last night and it may have worked, but I was not
observing that carefully.  The next time I have a problem with it, I
wll pay better attention.

Dan
> WME
>
> --- In toyota-campers@xxxxxxxxxxxxxxx, "listermann42" <dan@> wrote:
> >
> > Our furnace is a manual ignition.  I push a peizo igniter to get
a
> > spark.  If it does not light within the first couple few pushes,
it
> > is unlikely to light unless allowed to "rest" maybe ten minutes.
> >
> > Dan
> >
> > --- In toyota-campers@xxxxxxxxxxxxxxx, "rollin298" <rollin298@>
> > wrote:
> > >
> > >
> > > Hi Dan
> > > Your furnace I think should have a motor that drives a
squirrel
> > cage
> > > fan on each  end of it's shaft.
> > > One end blows across the out side of the combustion chamber
(inside
> > > air) the other end force feeds outside the coach air into and
out
> > of
> > > the combustion chamber through an exterior wall double tube
set up.
> > > This motor/fan should come on for a few 10s of seconds to
clear the
> > > inside of the chamber before the sparker starts firing. Some
units
> > > have a means of adjusting the amount of the forced air that is
fed
> > > into the gas/air burner.
> > > Here is a site that may be helpful even if your exact model is
not
> > listed.
> > > See ya
> > >
> > > http://www.marksrv.com/siteindex.htm
> > > http://www.marksrv.com/furnace_trouble_shooting.htm
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > --- In toyota-campers@xxxxxxxxxxxxxxx, "listermann42" <dan@>
wrote:
> > > >
> > > > Is it possible to "flood" a furnace?  I used to believe that
the
> > > > sparker was in bad shape because it only seemed to work
> > initally. 
> > > > After a few attempts it probably would not work again until
> > > > it "rested" a while.  That is what seemed to happen again
> > tonight
> > > > after I thought I had fixed it.  I went looking for a
propane
> > leak
> > > > around the new pilot line.  I used a lighter ( yes, I know
all
> > about
> > > > it).  What I found was what appeared to be propane leaking
out
> > of the
> > > > combustian chamber like it was full of the gas.  It did not
> > explode,
> > > > it just slowly burned.  As usual, after the rest, the pilot
lit
> > the
> > > > first time.  I am starting to think that the combustian
chamber
> > can
> > > > fill with propane gas and cause a lack of oxygen. The spark
> > might be
> > > > good, but the propane does not have enough oxygen to
ignite.  Is
> > this
> > > > possible?
> > > >
> > > > Dan
> > > >
> > >
> >
>

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