Return-Path: Received: from smtp.digital.net ([206.228.237.7]) by truman.olsusa.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 0-44819U2500L250S0) with ESMTP id AAA2695 for ; Wed, 2 Dec 1998 08:53:23 -0500 Received: from ddi.digital.net (ddi.digital.net [198.69.104.2]) by smtp.digital.net (8.9.1a/8.9.1) with ESMTP id IAA04711 for ; Wed, 2 Dec 1998 08:52:21 -0500 (EST) Received: from john (max-roc2-68.digital.net [204.215.229.68]) by ddi.digital.net (8.9.1a/8.9.1) with SMTP id IAA08789 for ; Wed, 2 Dec 1998 08:53:42 -0500 (EST) Message-Id: <3.0.3.32.19981202073002.006f60b4@mail.digital.net> Date: Wed, 02 Dec 1998 07:30:02 -0500 To: lancair.list@olsusa.com From: John Cooper Subject: Cabin Heat Valve X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Angier-- I had to puzzle for a while on that cabin heat valve as well. I finally figured out that the heated air from the muff comes in the bottom, and is directed either aft into the cabin , or forward into the cowling . I attached a 12" length of scat duct on the forward exit to direct the bypassed air down and out near the cowling exit.