Can I use flexible aluminum piping on a gas water heater?

Apr 11, 2007 6 Replies

Would I be able to use a flexible 4" aluminum pipe rated to 430 F on my gas water heater?



Actually I'm thinking of using flexible aluminum duct

it has to be a pipe in a pipe, i mean a duct in a duct. with a 1" airspace between... where it goes through any roofs or walls

No, you really should use half inch black iron like the rest of the world. Or half inch copper, or CPVC.

It isn't gas tight, and won't hold water pressure. Why would you do that?

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