Vent Sizing multiple appliances with single wall connectors to a Masonry chimney

[@Bobbyc719]

Thanks that helps a lot. Studying for my m1

[@abdorakeebnaji1527]

The best video explaining about venting.you make it a sample and very good details. Thank you so much .finally I understood these methods.

[@jzs6272]

A quick question = to calculate diameter of tank
300 capacity
5’ high

[@bobbyhodgesvlogish]

I'm so confused it says 2 90° but I only see one