Curt Sprenger Re: Engine Compartment Hot Air Exhaust Fan

[bumpersbird]

Guys,

I agree, but I'm hoping they will help to keep the bedroom cooler
while underway. It's a problem in my coach during the the summer
months. Even with the A/C runnung full blast thr rear room gets
hot/too warm.

But I do aspire to Gregg's way of thinking, do whatever takes, if
this doesn't work maybe 4 fans will.

Kurt Horvath
95 PT-42
10AC





--- In WanderlodgeForum@yahoogroups.com, "Scott Forman"
<scottforman75@...> wrote:
>
> Greg,
>
> I can't speak for the others, but for me the installation of the
fan
> is about circulating air through the engine compartment after shut
> down so that all the heat doesn't radiate into the bedroom. The
> radiator fan moves so much air through there that these little
> plastic fans will have little effect when underway IMO.
>
> Scott Forman
> 86 PT38 (Bird of the week this week!)
> Memphis
>
> --- In WanderlodgeForum@yahoogroups.com, "Gregory OConnor"
> wrote:
> >
> > Kurt,Curt, I dont think the fan is used to cool the engine
> > components in the compartment it is used to move hot air out
befor
> > the hot air loses heat to the compartment. The passive dynamics
of
> > the air movement in the compartment must trap the heat in??????.
I
> > thought of seeing what the result is if you closed off the side
> > vent and lifted the door slightly????? It seems as there is some
> > dynamic that traps the air????? I used PVC to house tail light
wire
> > loom that passes the rear hatch door from taillight to tail
light
> > and the pipe melted and saged 6 inches
> >
> > One fan should do the trick. if the air pressure in the
compartment
> > is too great at 70 mph 5 fans wont help . I wonder if blowing out
> is
> > the only way to do it since the rad fan opposit blows in???? The
> > other problem I see with just hanging a fan is ; without
shrouding,
> > the fan has some'200% less air direction. If you add a shroud
it
> > might exhaust air more effectivly.
> >
> > GregoryO'Connor
> > 94ptRomolandCa
> > --- In WanderlodgeForum@yahoogroups.com, "Curt Sprenger"
> > wrote:
> > >
> > > Kurt,
> > >
> > > I used one fan. Dick Hayden installed two fans and that picture
> is
> > his two
> > > fan install.
> > >
> > > No need to double up the wiring for two fans if they are to
work
> > at the same
> > > time. For individual fan control add an on/off switch for one
or
> > both fans.
> > >
> > > Thermostats are normally open.
> > >
> > >
> > >
> > > On Sat, Jun 28, 2008 at 7:28 AM, bumpersbird
> > wrote:
> > >
> > > > Curt,
> > > >
> > > > I was reading your file on (Engine Compartment Hot Air
Exhaust
> > Fan
> > > > System).
> > > >
> > > > Did you set up one or two fans?
> > > >
> > > > In the text it describes a one fan set up but there are two
> fans
> > in
> > > > the pics.
> > > >
> > > > Would you clarify that for me?
> > > >
> > > > I really like the ability to change fan direction to pull or
> > push air
> > > > through the compartment. I didn't think of that. Brilliant!
> > > >
> > > > The fans I bought are capable of rotating in either direction
> so
> > I
> > > > would like to set them up that way.
> > > >
> > > > I'm guessing that the diagram of the relays, breakers, and
> > switchs,
> > > > should be installed twice to get full capability out of a two
> fan
> > > > system.
> > > >
> > > > I've got the fans built and mounted on the swing out grill
right
> > > > rear, so all I need to do is set up the electrical end of the
> > system.
> > > > The picts are still on the home page under new photos. Pic #
> > 62208-4
> > > > bumpersbird album.
> > > >
> > > > I have most of the parts to set it up including realy neat
> > adjustable
> > > > temp snap thermostats. I'm assuming that the the thermostats
are
> > > > normally open?
> > > >
> > > > Any help or ideas on your experiance would be great. Thanks in
> > > > advance.
> > > >
> > > > The rest of you shade tree engineers are welcomed to throw in
> > your
> > > > ideas to :}
> > > >
> > > > Kurt Horvath
> > > > 95 PT-42 WLWB
> > > > 10AC
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > > --
> > > Curt Sprenger
> > > 1987 PT38 8V92 "MacAttack Racing"
> > > Anaheim Hills, CA
> > >
> >
>