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Best Way to Preheat Engine

IFLYIFR

By IFLYIFR
in Modern Mooney Discussion

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Bolter Mentor

Bolter

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Posted

Both Reiif and Tanis recommend leaving the heaters on continuously without risk.  Rather than just say this, these are the links with the logic behind their recommendations.  I will add that they specify that oil plus cylinder heating for continuous heating.  Not a oil heater only!

http://www.reiffpreheat.com/FAQ.htm#QA3

https://www.tanisaircraft.com/faq-frequently-asked-questions#:~:text=CAN I LEAVE A TANIS,temperatures less than 100F%2F38C.

Like several others, a blanket and cowl plugs and opening dipstick (to vent) make a warm engine compartment that is well above any condensation temps.  Fugawi made a nice video of his measurements for different conditions: 

 

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