Just another Hose o' Death access panel job, and huge thanks to the detailed original post and all the help that was posted after. I'm replacing the hose with the only thing the local CarQuest auto store had that will fit, SAE 30R7 fuel line hose. It's rated to 50 PSI working, 250 psi burst, 275 degrees F, and is nitrile-lined. The silicone heater hose sounds better, but a hose in the hand...

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