I installed a Regner Whistle on my Modified Emma. It is a lot of fun!
I found the installation pretty straight forward. the only tricky bit being silver soldering a fitting to the pressure gauge banjo.
Cool whistle, great video as always. 
Great video. I need to start playing with a whistle. sounds good.
The whistle has been fun! I made a larger bell for it yesterday. it now plays a deeper note
I love it. That was a great video with the snow fallen, just the rght amount and hearing the whistle out in the distance is awsome. You got me really thinking about one now. Really adds to the videos. How much snow did you end up with? We got just under a foot and lost power for a few hours. Some people still are without power.