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Featured Products |
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Fantech Kits |
 These handy kits include fans, mounting brackets, Y adapters, collars, clamps, and lights. See individual kits for contents. Great quality and value! |
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AirScape Fans |
 Reduce indoor air temperature by pushing the hot air out of the house through the attic and replace it with cooler outside air. Quiet and reliable. |
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How To's: Our Do-It-Yourself Help Section
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Using an in-line FR series fan.
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We are often asked about the how's and why's of quiet and effective bathroom ventilation.
The why is simple - who doesn't want quiet bath ventilation that takes
away odors and humidity and works flawlessly for years?
You can easily achieve sound ratings of 1 Sone (noise level of a quiet refrigerator) or less with the right fan and configuration.
The how is very straighforward, so please read on...
There are several Fantech fans that are used very effectively for
bathroom ventilation. This section will focus on using the FR series of
"in-line" fans from Fantech.
As the name suggests, the air duct runs into the FR fan on one end and then
directly out on the other, hence the term in-line fan.
The plastic fan casing surrounds a high quality German made motorized impeller, with a 5 year warranty.
Stale room air is sucked into the exhaust grille(s). The integral
backdraft damper allows air to flow out, but prevents
cold (or hot) outdoor air from flowing backwards when the fan is off.
A PBH4 combination grille and halogen light may be used instead of the standard grille.
The PBH4 is UL listed for wet applications (works great in a shower area!), and provides 50 watts of crisp halogen light.
The light can be controlled from the same switch as the fan, but is usually separated and controlled with the other lights in the bathroom.
Flexible, insulated ductwork is used to connect the grilles to the fan, installed in the attic. A larger fan
can serve 2 or more bathrooms by connecting the exhaust ducts with a "Y" fitting.
We highly recommend flexible, insulated, duct for exhaust fans. This duct is easy to install, provides great acoustics,
and since it is insulated minimizes condensation.
3 of the most popular choices for a discharge port (exhaust air exit from the house) are roof caps, sidewall vents, or soffit vents.
For fan sizing information please see our other "How To's" or use the
bathroom system builder/calculator.
Additional Notes and Tips:
- suggested maximum airflow for Fantech exhaust grills is: 4" - 100CFM, 5" - 125 CFM, 6" - 150 CFM, 8" - 200 CFM
- use flexible insulating ducting to limit noise and condensation
- use 8 feet or more of the insulated ductwork between the grille and the fan to maximize acustical benefits
- make sure that you hang the duct so that no valleys are created -- condensation can pool in the valleys, potentially blocking the air flow
- always use a backdraft damper to prevent drafts
- Fantech fans are fully speed controllable
More Links:
- Fantech Speed Controls and Timers
- Fantech Flexible Insulated Duct
- All Fantech Products
As always, if you would like to ask more questions about this or other technical topics give us a call at 877-711-4822 - 9-5 PST.
Live people for technical and sales support - an Internet first!
Pictures and images courtesy of Fantech.
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