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navien manifold dyi

jvboylejvboyle Member Posts: 2
Hi everyone , I'm a home owner installing a new Navien 240 Combi Unit. My local supply house didnt have the Pre-made manifold so i made my own. My question is , On the return , i used a standard 1'' T and i'm not sure if i should have used a monoflow or a Venturi Tee .....Any advice would be appreciated

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