X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao104.cox.net ([68.230.241.42] verified) by logan.com (CommuniGate Pro SMTP 5.3c3) with ESMTP id 4024131 for flyrotary@lancaironline.net; Wed, 16 Dec 2009 14:25:59 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.42; envelope-from=alventures@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao104.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20091216192525.TQMO16123.fed1rmmtao104.cox.net@fed1rmimpo01.cox.net> for ; Wed, 16 Dec 2009 14:25:25 -0500 Received: from BigAl ([72.192.136.150]) by fed1rmimpo01.cox.net with bizsmtp id HvRR1d0063EsL8g03vRRTd; Wed, 16 Dec 2009 14:25:25 -0500 X-VR-Score: 0.00 X-Authority-Analysis: v=1.1 cv=dPH3qklg8Vic3E1mcpSlAaa4ZLB04ixhaZIb8bf8Di4= c=1 sm=1 a=tfsqk3BvaNMA:10 a=+xS8pRtGb5GgEi4xmYelzg==:17 a=Ia-xEzejAAAA:8 a=du0tDnuXSWwo1BrvlCAA:9 a=4zfOS8EQXjX_kRpedsGE4IgFyYAA:4 a=EzXvWhQp4_cA:10 a=RpF-FTF4d6SrPwn5J8QA:9 a=0c-iiP18vjxXLoBemusA:7 a=_49uFIR9lqWwzJ7MAR6hKXrMghgA:4 a=+xS8pRtGb5GgEi4xmYelzg==:117 X-CM-Score: 0.00 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Cabin Heat (Was Oil Cooler) Date: Wed, 16 Dec 2009 11:25:53 -0800 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000D_01CA7E42.871FCCF0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6856 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 thread-index: Acp+fX5kmze3H5JvR0K2F6CIAPv6VwABjUEg Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_000D_01CA7E42.871FCCF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 =20 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Greg Ward Sent: Wednesday, December 16, 2009 10:32 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Cabin Heat (Was Oil Cooler) =20 Hey Mark; We've been looking at the same things with our install. We talked to = our exhaust guy, and he feels that with the exhaust temps that these = rotaries have, that it might not be a good idea, (the muff). Next step was hot water, plumbing, and a heater core inside some where, which was sort of = a negative idea. We kept all of our cooling lines exterior, so that a = coolant leak wouldn't happen inside at about 10K feet, and 200+ knots, not a = good scenario. J.C. Whitney has a small electric heater that has some possibilities, so we are looking into that and some other ideas. Greg Ward Greg; =20 Having studied that option in the past; I'd suggest you save your time - unless you want to add another alternator. For effective heating you're going to need more than 1000 watts. For a 14 volt system that's over = 70+ amps. =20 I don't consider it a risk to run some relatively small diameter, high quality, heater hose (5/8") into the cabin to a small heater core. I = have a 7" x 7" heater core, and it puts out at least 1500 watts, or more. See Mcmaster-Carr silicone hose, part #5296K12. Pressure test your system = each annual to about 35 psi. =20 Al G =20 =20 ------=_NextPart_000_000D_01CA7E42.871FCCF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

-----Original = Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Greg Ward
Sent: Wednesday, December 16, 2009 10:32 = AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Cabin Heat (Was Oil Cooler)

Hey Mark;

We've been looking at the same things with our = install. We talked to our exhaust guy, and he feels that with the exhaust temps that = these rotaries have, that it might not be a good idea, (the muff). Next = step was hot water, plumbing, and a heater core inside some where, which was = sort of a negative idea. We kept all of our cooling lines exterior, so = that a coolant leak wouldn't happen inside at about 10K feet, and 200+ knots, = not a good scenario. J.C. Whitney has a small electric heater that has = some possibilities, so we are looking into that and some other = ideas.

Greg Ward

Greg;

Having studied that option in the = past; I’d suggest you save your time – unless you want to add another = alternator. For effective heating you’re going to need more than 1000 = watts. For a 14 volt system that’s over 70+ amps.

I don’t consider it a risk = to run some relatively small diameter, high quality, heater hose (5/8”) = into the cabin to a small heater core. I have a 7” x 7” heater = core, and it puts out at least 1500 watts, or more. See Mcmaster-Carr silicone = hose, part #5296K12. Pressure test your system each annual to about 35 = psi.

Al G

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