Garrett Otters have great heat in the cabin while taxiing out at -40F. Never going back to a PT6 Otter in the winter in Deadhorse again.

I've got 1800 hours in turbine Otters of both varieties on floats, wheels, and skiis. Each have their plusses. Depends on your application. The PT-6 is quiet, easier to start, and less susceptible to FOD. The Garrett requires attention at startup, is noisier by far, but is much more responsive to po...