Turbine Ventilator
Turbine Ventilator
(OP)
Hi, I'm working on a five story residential building. For bathroom exhaust, the client asked me to use ceiling mounted exhaust fans in bathrooms and a wind powered turbine ventilator on the roof instead of a roof fan. The shaft are straight runs, a few offsets on top floor.
Has anyone else done something like this. Will the ceiling fan and ventilator be enough or should I insist on installing roof fans
Thanks.
Has anyone else done something like this. Will the ceiling fan and ventilator be enough or should I insist on installing roof fans
Thanks.





RE: Turbine Ventilator
Mike Halloran
Pembroke Pines, FL, USA
RE: Turbine Ventilator
Some fan blade types will surge or choke when the ventilator is making much pressure.
Don't do it.....
RE: Turbine Ventilator
If you do use this system, I would recommend using a fan with a built-in back-draft damper. Why does the owner want this type of system? Is he trying to save energy?
RE: Turbine Ventilator
MagicJS
RE: Turbine Ventilator
I think the static combined with stack effect should be enough to push air out, right?
snip
It will if the duct is the right size. Stack effect will also depend upon your local climate.
If the outside air temp is lower than the inside temp, there will be stack effect from thermal buoyancy.
Also, be careful with fan pressure capacity....0.55" WC is outside the range of many small fans.