I see no problem with using the old furnace flue for the bathroom vent as long as that vent has no other connections such as off to a gas water heater. The 16′ rise of the old furnace flue can represent a challenge for a small bathroom fan to push air through.
Can you vent bathroom fan into furnace vent?
No, it is not. The exhaust from the water heater and furnace contains products of combustion including poisonous carbon monoxide (CO). With the bathroom exhaust fan on, this could force either of these appliances to back draft.
What is the best way to vent a bathroom exhaust fan?
The fan exhaust must vent directly to the exterior of the home. Do not put the vent termination in a roof overhang or soffit. Don’t put it on a wall near or under a roof overhang. The moist air that’s belched out by the fan can be sucked right up into the open soffit vents and be drawn into your attic.
Does a bathroom exhaust fan need to be vented outside?
Bathroom fan installation requires outside ventilation. If the fan isn’t accessible through an attic, you’ll need to vent through a sidewall of your house. These types of ducts and vents are typically installed when the house is built.
Can you vent a bathroom exhaust fan out the side of the house?
In general: Yes.
How do you vent a bathroom with no outside access?
Installing a ceiling vent is probably the most efficient way to ventilate a bathroom with no outside access. A ceiling vent is a unique machine that allows air to escape from the bathroom. In other words, it’s a machine that, like an open window, allows moisture to escape from your bathroom.
Is it better to vent bathroom fan through roof or soffit?
Whether it’s new construction or a remodel, a bathroom vent should always vent through the roof instead of an eave, overhang, or soffit. The point of a bathroom exhaust vent, or any vent really, is to remove hot, moist air from the house.
Should bathroom fan vent into attic?
No, you should not vent a bathroom fan directly into an attic. The problem with venting into the attic is that the moisture-rich air may form droplets on the wood sheathing, insulation, rafters, and ceiling joists, leading to mold growth.
Where does bathroom exhaust fan vent to?
The extractor fan (exhaust fan) removes humidity and moisture from the bathroom. The fan sucks in air from the bathroom and blows it out of through a vent that is runs behinds above the ceiling. It works in the same way that a kitchen exhaust hood does except moisture is being moved instead of smoke.
How do I install a bathroom fan without attic access?
Quote from Youtube video: Also most of the time your exhaust should be on a flex pipe like this if yours is completely rigid and you don't have attic access you'll either have to cut the drywall to move the pipe.
Can I use dryer duct for bathroom fan?
A bathroom fan and a dryer should never share the same vent. International building code states that dryer vent exhaust systems must be separate from all other systems and must expel moisture out of the house through a dedicated vent. This is because of the potential hazards associated with improper dryer venting.
How do you vent a bathroom fan into the attic?
The Correct Way to Vent a Bathroom Fan into Your Attic
The proper way through which you can vent a bathroom fan through your attic is by terminating the vent either to the gable wall or to the roof. No matter what you pick, the vent will directly go to the outside and should be installed using a vent hood cover.
What is the point of a ductless bathroom fan?
A ductless fan removes excess moisture from the bathroom air by passing air through a filter that draws moisture from the air. This humidity control function is critical to keeping your bathroom fresh and your furniture in tip-top shape.
Is a ductless bathroom fan up to code?
Ductless bathroom fans help “clean the air” of any unpleasant/unwanted smells, but they don’t meet “code” when it comes to removing moisture from the bathroom if it also has a shower or a bath in it.
Do exhaust fans need to be ducted?
Do you wish to duct the fan? The majority of ceiling exhaust fans are now being ducted outside, however if you have a well ventilated roof space you may wish to vent into the cavity. If you are ducting the fan its best to keep the duct run as short and direct as possible.
How do you duct a bathroom fan?
Quote from the video:
Quote from Youtube video: Out first thing i want to do is remove some of the roof shingles so i can drill a hole all right now i'm going to measure the vent hood. It's five and a half inches.
How long can a bathroom exhaust duct be?
Generally a 4 inch flex duct can carry a fan exhaust for up to 25 ft. Most codes require that.
