"Engine Preheat" vs. "Engine Heater"

[bumpersbird]

Pete,

I'm giving my coach the pre winter shake down. I turned on the dash
engine heat and am waiting to see what it does. I belive it's a 12V
heater and/or runs through the inverters? Not sure myself but Im will
ask my BB Guru.
The engine heat switch under the sink is a 120V system. There is a
breaker marked; engine heater, in the the main breaker box.
I was told never to use the cold engine start switch! It is for the
ETHER INJECTION. The series 60 may not like starting cold but it will
do so down to -20 so I am told. I don't know about that, but as in
your case mine starts but not without protest. That switch is left
over from the 8V92 days. NOT THAT THERE'S ANYTHING WRONG WITH THAT :}
Coach is in the nest after a wicked and too eventful trip to TEXAS!

Kurt Horvath
Bumpersbird
'95 PT-42 WLWB


--- In WanderlodgeForum@yahoogroups.com, Pete Masterson
wrote:
>
> As I watch the snow accumulate outside the window, I realize that
I
> have two switches that would seem to refer to the same function:
>
> On the panel on the left above the driver's head, I have
an "engine
> preheat" switch with a green light that comes on when the switch
is
> activated. I also have a red, home-style switch on a panel just
below
> the galley sink, next to the Konstant Hot switch that
reads "engine
> heater" and the switch glows red when it's turned on.
>
> Do these switches turn on the same thing? The owner's manual
mentions
> (without much detail, of course) that the AquaHot system will heat
> the engine for cold starting.
>
> Therefore, do I turn on both switches or will only one do the job?
> Does anyone have a feel for how much time it takes to warm the
engine
> in freezing temperatures... last spring when we spent a week in
the
> Denver area with temperature lows frequently dropping into the
> mid-20s, I turned on the "engine heater" switch about 10-12 hours
> before departure. After many tries and much stumbling the Series
60
> finally but reluctantly came to life.
>
> I'm thinking I'll turn on the switch(es) about 24 hours before my
> planned departure this time... or should I turn it on sooner?
>
> TIA
>
> Pete Masterson
> aeonix1@...
> 1995 Wanderlodge WBDA 42
> On the road at Idaho Springs, CO
>