Just wondering...

Have many of you dealers installed the breather warmers when they were available? I have come across a few units during my annual services this year that had a black soot in the airbox (including my own personal unit). It turned out to be the remains of the breather hose, which was completely disintegrated underneath the breather heat wrap. Now I have a good amount of units I need to replace the hose on. I haven't had to replace one yet, can I get to the breather hose without completely removing the fan shroud? doesn't look like it..
I have yet to install one, starting to use the Kohler ones on their units. Similar breather material, likely similar orange heater, hopefully not similar results. The other components, the oil heater and battery warmers of late have been working fine.