Paul,
  What is the preferred design for a cabin heater using the
 rotary?  Do you
  use the oil or the water?  What about an oil to water
 cooler using an
  external water circuit?  I am building a
 pusher.  Thanks for any help.

  Joe Berki
  Limo EZ

  Perry Mick uses an oil cooler under the cockpit
  on his Long as I recall.


  Paul Lamar

  Joe,

 The highest temps are from the exhaust.  A water
 exchanger will require a
 heater core, a fan, lots of coolant hose, and a gallon or
 two of H2O. If it
 springs a leak, you could be faced with scalding hot water
 being sprayed on
 your legs/feet, and at minimum, a fogged up
 windscreen.  Bottom line... an
 exhaust heat muff provides the most heat for the least
 weight penalty.  If
 you do go that route, spring for a CO detector.

 Mark S.

 I personally would prefer a little fog to a lethal
dose of carbon monoxide.  Coolant heat exchangers have
been used since the early part of the 20th century and
failures are rare.  Failures are generally the result
of sloppy maintenance, ie not periodically changing and
flushing the cooling system and not replacing hoses.

Coolant heaters have always been a useful tool to
help dissipate  high coolant temperatures.

Joel

I have a water heater with 2 ball valves in the cockpit to isolate it
completely in case of a leak.  I actually use one of the valves to control
temp. in the cockpit.  It works just fine.

Rino Lacombe
Renesis powered Glass Goosse
http://www.youtube.com/watch?v=dAosiOhvwa8&feature=related

Rino should know. He lives in the great white north :)
The key to cooling reliability is AN plumbing and fresh antifreeze on
a regular basis.


Paul Lamar