How to select right size Exhaust Fan for your Bathroom?
2015-09-18 2:53:00 AM
What is CFM?
2015-02-08 1:04:00 AM
Cubic feet per minute – a measure of volume flow rate, or air moving capability of an air moving device.
What is a Sone?
2015-02-08 12:57:00 AM
A sone is an internationally recognized measurement of sound output. Sones translate decibel readings into numbers that correspond to the way people sense volume, and follow a "linear" scale, like inches (see chart below). Sone readings offer quick sound comparisons for laymen and engineers.
Sone chart
Sound level situation |
Sone level |
How we feel |
Traffic noise |
8.0 / 7.0 / 6.0 / 5.0 / 4.0 / 3.0 / 2.0 / 1.5 |
Conversation with added noise |
TV/Radio |
Normal conversation |
|
Calm office |
||
Night in suburbs |
1.0 |
Comfortable zone free from noise |
Rustling shrubs |
0.5 |
|
Ventilation Fans Installation!
2015-02-08 12:50:33 AM
INSTALLATION |
Why is ventilation necessary? Ventilation is necessary for a few reasons including: 1. Airtight homes 2. Biological pollutants 3. Volatile organic compounds (VOCs) Ideally, an airtight home designed with both continuous and intermittent ventilation will contribute to a healthy and comfortable living environment for your entire family. Continuous ventilation Intermittent ventilation Other ways to improve indoor air quality before ventilation include:
How do I install a ventilation fan? Installation Important Duct selection Sagging or weaving a fan duct will also increase static pressure and reduce a fan's performance. When using a flexible aluminum duct, support the entire length of the duct with braces or hangers to keep it as straight as possible for the entire run. If the duct lies across the attic, do not allow it to sag between each joist. Also, avoid serpentine weaving through trusses. Using a flexible duct made of nylon or vinyl is not recommended due to high static pressure caused by its ridges and curvature. Elbows First, allow a 2 - 3 foot straight run out of the fan before the first elbow. This allows airflow momentum to build before passing through the first elbow. An installation that has a 90-degree elbow immediately after the fan exhaust port will cause air to flow back into the fan. This will reduce fan performance and increase noise. Second, use a long radius angle to help ensure optimum airflow and minimum airflow noise. The shortest smooth, inner surface duct with the least number of elbows will provide optimum fan performance. |
If water is dripping from the grille, or the mirrors are not clearing quickly enough, is my fan not operating correctly?
2015-02-08 12:42:36 AM
If this is happening, it might be caused by a faulty roof jack allowing rain to come into the duct, or condensation from warm, humid air in the house striking the cold duct surface.
If your fan has a problem with condensation, two things may help. First, try operating the fan for longer periods of time to carry out more of the moisture, so the air is not humid when the fan stops running. Moisture will generally not form when the fan is running unless it is very cold, or the installation has a very long duct run in a cold attic. Second, you can insulate the duct to reduce the probability of condensation.
Also, if the fan does not appear to be clearing moisture from the room, check the ducting and run time of the fan. Poor duct design, installation, or damage may prevent the fan from overcoming the static pressure of the duct, which means that it will not be able to get the air and therefore the moisture out.
Be sure to contact your local electrical and building officials to ensure local building and electrical codes are met before attempting to install ventilation fans in your home.
Can I exhaust my fan into the attic instead of through the roof?
2015-02-08 12:41:58 AM
You should never exhaust into the attic space. Moisture could damage the building materials.
Can a Panasonic fan be used above a kitchen range?
2015-02-08 12:40:56 AM
No. Fans installed above kitchen ranges must be listed for that application by UL, and must be designed to handle grease and high temperatures. Panasonic fans should only be used to provide auxiliary kitchen ventilation. An alternate approach is to use a ducted range hood or downdraft exhaust, and a Panasonic ventilation fan to exhaust the general odours and moisture in the kitchen.
Can a Panasonic fan be installed in a wall as well as in the ceiling?
2015-02-08 12:39:47 AM
Only WhisperWall™ models are specifically designed to be installed in a wall.
Smaller ceiling fans (up to 110 cfm) should not be installed in the wall due to mechanical concerns (motor orientation, bearing lubrication, built-in damper, etc.). However, if they are installed in the wall, the duct needs to be pointed up to allow the damper to operate, but the bearings may not last as long as specified due to insufficient oil flow within the sleeve bearings.
Larger fans (190 and 340 cfm) can be installed in either the ceiling or wall. These fans are not prone to lubrication concerns; however, the depth of the wall cavity versus the fan height of the housing should be considered.
What are the advantages of an in-line ventilating fan?
2015-02-08 12:39:00 AM
The Panasonic In-Line fan is a versatile system that you can use to provide multiple ventilation inlets in a large bathroom (e.g. shower, toilet, and vanity). Use it as a continuous (low rate) ventilation system with multiple inlets throughout the home to improve indoor air quality. Or, use it to ventilate two bathrooms at once.
Can a Panasonic fan be used over a bathtub or shower?
2015-02-08 12:38:07 AM
Yes, provided it is protected by a Ground Fault Circuit Interrupter (GFCI). Keep in mind, however, that any ventilation device located in a damp environment may have a reduced life due to high humidity and the potential for corrosion. Fans used in high-humidity areas should be operated for longer periods of time to ensure the removal of moisture and to reduce the potential for condensation in the fan body or ducting.