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Subject: [FlyRotary] Re: heater

Ernest.

My oil temp generally runs 10C degrees cooler than the coolant temperature.

This is actually very desirable as the oil red line is 210F while the coolant can go much higher.

Also it will take longer for the oil to heat up than the coolant as it's thermostat is activated at 140F degrees allowing flow through the cooler, while the coolant thermostat is usually at 180F, if you  have one installed.

Having said all that, I am currently using my oil cooler exhaust air for cabin heat just because it was easier to do, since the oil cooler is mounted to the firewall and has its own fresh air inlet and outlets.

Jim

Ernest Christley <echristley@nc.rr.com> wrote:

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I'm using oil for cabin heating. It's hotter.

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,|"|"|, Ernest Christley |

 

 

Concerning cabin heaters, I had been planning on following John Slade with the heater A/C combo until a conversation with a fellow Cozy builder and he claimed that running the hot water lines inside (as would need to be done on a Cozy) leads to a possible failure mode that could cook the pilot and / or passengers.  Said hot water from engine escaping into cabin usually causes steam which somehow is hotter that the water or is more likely to spray all over the place and cause great pain to the occupants.  Claimed this is what caused one of the air racers to crash recently. Should I change to oil for the heat ? If so, what exchanger will handle the oil pressure and spikes of the rotary?  All comments (sensible) welcome. 

 

Wendell