Manifold Location and Sizing Question

[jb9]

Hello,

I am building a house with 2 1/2 bathrooms stacked around a single wet wall. I am trying to keep the plumbing simple. I have a few questions about manifolds that I am struggling with:

-Do I need one manifold per floor? (2 full bathrooms on 2nd floor, half-bath on first floor)

-How do I size the number of lines for the manifold (exactly what I need or have an extra few lines)?

-Are manifolds noisy? (I am wondering if one might not want one close to a bedroom)

-What is an optimal location and how big of a wall cavity is required? (given I am using a single wet wall). Could a manifold go under a cabinet sink?

-I am also going to be using manifolds SEPARATELY for a radiant heat floor so let me know if any suggestions for conventional plumbing (potable) might not apply to a radiant system.

Thanks in advance. I really appreciate all the knowledgeable folks here.

 

[frodo]

you stuff is so close, you dont need manifold

 

[frodo]

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[jb9]

Thanks Frodo. I may need to have the hot water heater in the basement. Is that still going to be sufficiently close?

 

[1212jeff]

I wouldn't manifold it more work for yourself make sure you run 2 3/4 lines up for the two bathrooms