Can You Run Two Bathroom Fans Together

You can replace the fan opening with a grill for each washroom.

Can you run two bathroom fans together.

When inline fan is in operation air from both washrooms will vent out. The 2 fans have their own ducts but just before they vent out the roof their duct pipes are attached to a common duct upside down y which means they vent out the same hole in. It is basically a fan in a box with 3 to 4 ports on the side. I have two adjacent bathrooms one of which has an exhaust fan that vents through the roof.

Connecting bath exhaust ducts together can result in problems. Was replacing bathroom fan 1 and while it was disconnected from its duct pipe the fan in the bathroom 2 was on and. Both washrooms must have nearly identical square. If you have two bathrooms that are close together and one has an exhaust fan and the other doesn t you might be wondering if you can tie a new exhaust duct into the existing one.

I vote to keep the ducts separate. I plan to add a fan to the other bathroom but want to avoid drilling a hole in my roof. Can i tie two bath exhaust fan vents together. The classic example occurs in multifamily units if one tenant is a smoker the tenant next door can smell tobacco smoke that enters the bathroom through the exhaust fan.

The typical problem is that odors can migrate from one bathroom to another. I felt air coming from bathroom 2 s fan down through the metal duct pipe for venting bathroom 1. Then add an inline fan to the remaining leg of the y adapter and run ducting to vent outside. If you are using pbh or pbl grilles grilles with built in lights the light is usually controlled by a separate light switch or switched along with other bathroom light fixtures.