Yes. Loose fill or batt insulation can be placed directly over the fan housing in the attic. The efficient, cool-running motors and fluorescent bulbs in Panasonic's fans do not create enough ambient heat to prevent using insulation.
Can insulation material be used over fans installed in the ceiling?
2015-02-08 12:37:22 AM
Why do Panasonic fans have such a long life?
2015-02-08 12:36:26 AM
Panasonic fans are designed to provide continuous operation for a minimum of 30,000 hours. They are actually designed to provide up to 100,000 hours of operation, but most fans have not been around long enough to reach that goal in testing. Some fans, however, have reached 60,000 hours in testing with virtually no wear on their components.
The following features enable the longevity of Panasonic fans:
Motor production
Panasonic motor production is fully automated, with an automatic defect detecting system and have a defect rate of less than 0.0006%.
ISO 9001 plant
The production facilities that build Panasonic fans have been recognized by the International Standards Organization (ISO) as being among the highest quality factories in the world.
Motor design
The electrical design of the fan motor allows it to operate at lower temperatures than most other motors, increasing the life of the motor and its bearings.
Fan housing
The fan housing is made of heavy gauge zinc galvanized steel, and painted to protect it from rust.
What makes Panasonic fans so energy efficient?
2015-02-08 12:27:34 AM
In terms of input wattage, Panasonic fans are among the lowest in the industry. This low wattage draw is accomplished in a number of ways, including:
Unique motor design
The fan condenser acts like a capacitor to store electrical energy and deliver it quickly and in exact amounts to the coil. This reduces the power draw, thus improving the electrical efficiency of the motor.
Selective application
Panasonic builds its own fan motors and components, thereby optimizing efficiency by matching the exact motor characteristics with the desired performance of the fans.
Wide blower wheel
The wide blower wheel improves airflow efficiency, enabling the fan to operate at lower RPM and reduce energy usage.
Why are Panasonic fans so quiet?
2015-02-08 12:25:24 AM
Fan noise is created as air passes through the grille and enters the blower wheel assembly or fan blade as much of the noise is a function of the blower wheel.
Panasonic fans use a large diameter, wide blower wheel that moves a large amount of air at reduced RPMs. The blower wheel is approximately 60% larger than the competition's, but turns at a lower RPM, reducing tip speed and therefore noise.
The double suction blower wheel is designed to draw in air from both sides of the wheel as this helps keep the noise down and there is more area for the air to enter the wheel.
The exhaust outlet is as wide as the blower wheel, allowing less turbulent airflow as it enters the duct. It is then gradually stepped down before it enters the duct.
Panasonic fans use a four-pole condenser motor which helps the fan to rotate smoothly and evenly, reducing noise.
Can a 4" duct pipe be used on a bath fan with a 3" duct connector?
2015-02-08 12:24:36 AM
Yes, however a 3" to 4" adapter is required.
Can a 3" duct pipe be used on a bath fan with a 4" duct connector?
2015-02-08 12:23:33 AM
Avoid using a 3" duct as this creates very high static pressure, reduces airflow dramatically, and over the long term, reduces motor life in the fan. If you are remodelling a house with existing 3" duct runs, one trick is to use the 3" as a guide for the 4" replacement duct. Simply slip the new 4" duct over the 3" and push it to the fan or to the wall to avoid having to expose the entire duct. Once the new duct is in place, pull out the 3" and dispose of it.
How do I select the right fan for a specific room size?
2015-02-08 12:09:49 AM
To calculate how many CFM of airflow is required to properly ventilate any room in your home, use the following calculation.
For an 8 foot ceiling take the square footage of the room and multiply it by 1.1. (Example – 10' x 10' room with 8' ceilings: 10' x 10' = 100 square feet x 1.1 = 110 CFM’s)
For any ceiling over 8 feet, take the height of the ceiling and multiply by .1375. Take this figure and multiply by the square footage of the room. This will equal the recommended CFMs. (Example – 10' x 12' room with 9' ceilings: 9' x .1375 =1.24 x 120 square feet = 149 CFMs.)
Both calculations will give you the minimum recommended CFM
Bathroom fan sizing chart
Bathroom (to achieve 8 ACH as per HVI) |
|||||
Equivalent duct length |
|||||
Sq ft |
20 feet |
40 feet |
60 feet |
80 feet |
100 feet |
30 |
FV-05VQ |
FV-05VQ |
FV-05VQ |
FV-05VQ |
FV-05VQ |
40 |
FV-05VQ |
FV-05VQ |
FV-05VQ |
FV-05VQ |
FV-05VQ |
50 |
FV-05VQ |
FV-05VQ |
FV-08VQ or FV-08VQL |
FV-08VQ or FV-08VQL |
FV-08VQ or FV-08VQL |
60 |
FV-08VQ or FV-08VQL |
FV-08VQ or FV-08VQL |
FV-08VQ or FV-08VQL |
FV-11VQ or FV-11VQL |
FV-11VQ or FV-11VQL |
70 |
FV-08VQ, FV-08VQL, |
FV-08VQ, FV-08VQL, |
FV-11VQ, FV-11VQL, |
FV-11VQ, FV-11VQL, |
FV-11VQ, FV-11VQL, |
80 |
FV-11VQ, FV-11VQL, |
FV-11VQ, FV-11VQL, |
FV-11VQ, FV-11VQL, |
FV-15VQ or FV-15VQL |
FV-15VQ or FV-15VQL |
90 |
FV-11VQ, FV-11VQL, |
FV-11VQ, FV-11VQL, |
FV-15VQ or FV-15VQL |
FV-15VQ or FV-15VQL |
FV-20VQ or FV-15VQ or |
100 |
FV-11VQ, FV-11VQL, |
FV-15VQ or FV-15VQL |
FV-15VQ or FV-15VQL |
FV-20VQ or FV-15VQ or |
FV-20VQ or FV-15VQ or |
140 |
FV-15VQ or FV-15VQL |
FV-20VQ |
FV-20VQ |
FV-20VQ |
FV-20VQ |
180 |
FV-20VQ or FV-11VQ (x2) |
FV-20VQ or FV-11VQ (x2) |
FV-20VQ or FV-11VQ (x2) |
FV-20VQ or FV-11VQ (x2) |
FV-30VQ or FV-20VQ (x2) or |
240 |
FV-20VQ or FV-11VQ (x2) |
FV-20VQ or FV-11VQ (x2) |
FV-30VQ or FV-20VQ (x2) or |
FV-40VQ or FV-20VQ (x2) or |
FV-40VQ or FV-20VQ (x2) or |
300 |
FV-40VQ or FV-20VQ (x2) or |
FV-40VQ or FV-20VQ (x2) |
FV-40VQ or FV-20VQ (x2) |
FV-20VQ (x2) |
FV-20VQ (x2) |
What is Makeup air?
2015-02-08 12:08:31 AM
Replacement air for the air exhausted out of the structure by mechanical ventilation.
What is static pressure?
2015-02-08 12:06:22 AM
A measure of the resistance a fan must overcome before it can move or exhaust air. For more information, visit the Home Ventilation Institute website at www.hvi.org.