???????? flyrotary@lancaironline.net ????? #18590
???: Russell Duffy <13brv3@bellsouth.net>
??: RE: [FlyRotary] Re: Heater valve
??: Wed, 9 Mar 2005 21:51:36 -0600
??: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Hey, Rusty....just curious as to why you might prefer an exhaust heat muff.  Since we have water cooled engines, one of the benefits is the capability to use that water in a heater core for good heat, no danger of carbon monoxide poisioning, and it will also assist as an emergency radiator in case of overtemps.  Plumbing or space limitations?   Paul Conner 
 
Hi Paul,
 
First, I don't have room for a heater core, and plumbing.  Second, there's a lot more heat available in the exhaust, than in the water.  I also believe the concern about CO poisoning is far overstated.   Still, I have a colored dot type, and an electronic type CO sensor, and would be careful not to put the muff on a joint, but rather a straight piece of pipe (with none of my welding to depend on).  
 
Cheers,
Rusty (driving near Leeward air ranch on Sat) 
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