= wrote: Well with 3 coolers already, I didn=92t want to add a heater core = and all the plumbing =96 I may move my scavenge point from oil cooler to = water radiator as it is below the engine (uphill for warm air) and = closer to the firewall (fewer corners to turn). I picked the oil cooler = because at the time my oil temp was higher than water temp =96 now = it=92s the other way around =85 also the outlet of oil cooler as = installed is less likely to get contaminated with exhaust fumes. Jeff ------=_NextPart_000_0A5F_01CA7E3B.07F86510 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Hey Mark;

We've been looking at = the same=20 things with our install. We talked to our exhaust guy, and he = feels that=20 with the exhaust temps that these rotaries have, that it might not be a = good=20 idea, (the muff). Next step was hot water, plumbing, and a heater = core=20 inside some where, which was sort of a negative idea. We kept all = of our=20 cooling lines exterior, so that a coolant leak wouldn't happen inside at = about=20 10K feet, and 200+ knots, not a good scenario. J.C. Whitney has a = small=20 electric heater that has some possibilities, so we are looking into that = and=20 some other ideas.

Greg Ward

Lancair 20B N178RG in=20 Progress

----- Original Message -----

From:=20 Mark = Steitle=20

To: Rotary motors in = aircraft

Sent: Tuesday, December 15, = 2009 1:41=20 PM

Subject: [FlyRotary] Cabin Heat = (Was Oil=20 Cooler)

Jeff,

I'm considering going to a heat muff since there is = sooooooo=20 much exhaust heat that's just going to waste. I was going to = incorporate=20 it into the heat shield of my newest muffler design. Of course, = I'll=20 need to add a CO detector in the cabin for safety.

Mark

On Tue, Dec 15, 2009 at 3:24 PM, Jeff Whaley = <jwhaley@datacast.com> = wrote:

Well with 3=20 coolers already, I didn=92t want to add a heater core and all the = plumbing =96 I=20 may move my scavenge point from oil cooler to water radiator as it = is below=20 the engine (uphill for warm air) and closer to the firewall (fewer = corners=20 to turn). I picked the oil cooler because at the time my oil temp = was higher=20 than water temp =96 now it=92s the other way around =85 also the = outlet of oil=20 cooler as installed is less likely to get contaminated with exhaust=20 fumes.

Jeff

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