However, I’m not real confident with the durability and resilience of my heater hoses either. I’m re-thinking my heater plumbing. I don’t want any big leaks in the cockpit – not only do you lose coolant – but you can create a self-made IMC condition by fogging all the windows in a bug hurry – so then get 2 emergencies for the price of one! L.  I’d like to use aluminum tube from the firewall forward to the heater, but that may require some major surgery that I may not be willing to do right now.

 

Thanx

 

Joe;

 

IMHO; good quality silicon heater hose (Find it at McMaster-Carr) would serve just fine.  Inspect it on your annuals; consider changing it every couple of years when you change your coolant.

 

Al