Ken,
Did you alter the oil cooler bypass? The stock oil
cooler has a bypass that prevents oil from circulating
through it when the oil temp is below 140F degrees.
This helps to warm the oil faster on cold days.
Jim
--- Original Message ---
From: Ken Welter <rotary.coot@verizon.net>
To: "Rotary motors in aircraft"
<flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Heaters/defrosters

>>Mark Steitle wrote:
>>Is there a "best practice" for cabin heat/defrost
systems for rotary
>><snip>
>>>
>>>Comments welcome,
>>>Mark S. (hot oil exchanger is out of the question)
>>>
>>>>>  Homepage:  http://www.flyrotary.com/
>>>>>  Archive:  
http://lancaironline.net/lists/flyrotary/List.html
>>>>
>>>
>>
>>Why is the oil exchanger out of the question? I
don't see how it
>>could be any more dangerous than a muff.
>>
>>My plan is to duct either a radiator or the oil
cooler so that I
>>pick up cabin air both in front and behind the heat
exchanger. The
>>cool air pickup in front of the heat exchanger will
run through an
>>icebox, and then both ducts will run into a cabin
controlled 'mixer'
>>to give the maximum in pilot/passenger comfort.
>>
>>--
>>http://www.ernest.isa-geek.org/
>>"Ignorance is mankinds normal state,
>>   alleviated by information and experience."
>>                                   Veeduber
>
>
>   A problem with oil is that I have had problems
with keeping the oil
>warm enough in cold weather where the water
thermostat seems to be
>more stable.
>  In cold weather my oil will drop to 120 degrees or
less where the
>water will hold at 180.
>
>   Ken