REFLECTOR:Heating

John Dibble reflector@tvbf.org
Thu, 23 Oct 2003 12:07:08 -0400


Brett,

I'm thinking to keep the stock system and have the bilge air totally separate.  All
you need is a duct from the cabin to the front of the oil line duct with the bilge
pump in between.  "Mixing" can be done with a cut out in the duct downstream of the
bilge pump to bleed air and reduce flow to the cabin.

John

Brett Ferrell wrote:

> John,
>
> You could probably do that, the issue is how do you get get the ducting all
> set up?  I wasn't clear if you wanted to maintain the "stock"
> NACA-cooler-Dump system, but assuming you do there's not a lot of room to
> bring in the bilge air and a selection flapper into the NACA, and then you
> have the same issue coming out, I think you'd want a flapper to select to
> dump overboard or send air to the oil line conduit.  However if someone
> comes up with a clever way to do that, it would be nice for guys with the
> RGs.
>
> The factory system is nice and simple, and the ducting quickly gets
> complicated anyway you go if you want finer temperature control.  I really
> hate the way the Cessna heaters work, where you get either 400 degree air or
> NONE, which is why I went with the mixer.  But that causes me to have a T in
> the fresh air line (cool air to the mixing valve and up to another T to feed
> the 2 panel-mounted eyeball vents), then I have a T in the hot air line to
> the mixer (one from the standard naca system, one from the recirc fan
> system).  I think I'll really like the functionality of the system, but it
> does look a bit rat's-nesty in there....
>
> Brett