New floor joist for water tanks etc

[jackofairbrother]

Hi, just wondering what would be better.

I want to reroute the hot water tank in the loft when it gets converted. This part will be studded off the load bearing wall but want the eaves to store the tank etc.

Blue line has a load bearing wall beneath

Red line- assumed doubled up 8x2 with joists hanger to take binder loading for remaining 4x2 ceiling joists

Side to side span- 3.8m (wall to load bearing wall on right)
Making pockets bigger and putting new 8x2 joists in

Back to front will be around 1.5m
Or put 8x2 on hangers off the new doubled up 8x2 beam


Looking at span tables- c24 on 400mm centres. even with dead load at More than 0.50 but not more than 1.25Kn/m2
It allows 3.92m span, so I assume running side to side would be better to not put excess loading on one beam unnecessarily


Thanks in advance !

 

[robinbanks]

Why not go diagonal from one LB wall to another and sit the tank atop the support?