ANY PIREP's ON TURBO HEAT MUFF

[Jetmart]

Wonder if anyone installed this Turbo Heat Muff on a RV-14.
Is it better than Van's Stock Muff? Any complications with the install?
There is a thread with it on a RV-4 that sounded positive.

 

[Nova RV]

Honestly, the stock setup with the dual heat muffs gets really, really hot inside very quickly. Even a tiny bit open keeps the interior comfortable at altitude even in Winter.