What is the sound (scone) level of this fan?

I believe it operates at .9 @110cfm .6 @80 cfm .4 @50cfm. It's advertised as <.3 scone which is true if measured off of the start up speed. Since it is a DC motor it has what would be noticed as a slow start but that is totally normal. They have a larger unit also that has a light with a 6" exhaust and it tops out at 150cfm and it is maybe a little above 1 scone at full speed. These are in opinion hands down the best residential bathroom/utility room exhaust fans. I don't even offer anything else to my customers. You won't be disappointed.

What is the duct size please?

It is 4 in oval so it can fit into 2 by 4 walls. I used this to immediately go to the outside. Fantech 4 inch Round to Oval Duct Elbow FEL 4 https://www.amazon.com/dp/B004HE1A7C/ref=cm_sw_r_cp_apip_ZR9i4rM5GZFhA

Can this fan be installed from below, or do you need to access from above ceiling?

Yes. If you can get the knockout out and enough vent tube down. Not your hole will need to be about 1/2” bigger than the fan to accomplish this and you will need to be in a stub/joist

The fan turns on but its not a constant speed/whir and it oscillates between on and off - is that how its supposed to work?

You've probably solved your problem by now, but for future purchasers reading these questions, this issue appears to be caused by certain timers that are not compatible with the unit. It should operate at constant speed. Mine shows up today so haven't tested yet, but I read that the Legrand RT2WCCV4 timer works fine.

Desertcart Logo

Q: What is the duct size please?

It is 4 in oval so it can fit into 2 by 4 walls. I used this to immediately go to the outside. Fantech 4 inch Round to Oval Duct Elbow FEL 4 https://www.amazon.com/dp/B004HE1A7C/ref=cm_sw_r_cp_apip_ZR9i4rM5GZFhA

Q: Can this fan be installed from below, or do you need to access from above ceiling?

Yes. If you can get the knockout out and enough vent tube down. Not your hole will need to be about 1/2” bigger than the fan to accomplish this and you will need to be in a stub/joist

Q: The fan turns on but its not a constant speed/whir and it oscillates between on and off - is that how its supposed to work?

You've probably solved your problem by now, but for future purchasers reading these questions, this issue appears to be caused by certain timers that are not compatible with the unit. It should operate at constant speed. Mine shows up today so haven't tested yet, but I read that the Legrand RT2WCCV4 timer works fine.

ASIN	B06W2LB17J
Air Flow Capacity	110 Cubic Feet Per Minute
Blade Material	Plastic
Brand	Panasonic
Brand Name	Panasonic
Collection Name	Bathroom
Color	White
Colour	White
Control Method	Push Button
Controller Type	Button Control
Customer Reviews	4.5 out of 5 stars 1,479 Reviews
Electric Fan Design	Exhaust Fan
Electric fan design	Exhaust Fan
Finish Type	Glossy
Global Trade Identification Number	00885170306295
Included Components	Ventilation Fan unit, grille, installation manual, warranty sheet, self-drilling screws (4)
Indoor Outdoor Usage	Indoor
Is Product Cordless	No
Item Type Name	Ventilation Fan
Item Weight	3.08 kg
Item height	3.38 inches
Manufacturer	Panasonic
Material	HAWA
Model Name	FV-0510VS1
Model Number	FV-0510VS1
Mounting Type	Ceiling Mount
Noise Level	0.9 Sones
Number of Power Levels	3
Number of Speeds	3
Power Source	Corded Electric
Power source	Corded Electric
Recommended Uses For Product	Ventilating
Room Type	Bathroom
Room type	Bathroom
Special Features	Manual
Specification Met	Energy Star
Speed	100 Cubic Feet Per Minute
Standby Power Shutoff	High Efficiency
Style	Modern
Switch Type	Toggle
UPC	885170306295
Unit Count	1 Count
Voltage	120 Volts
Wattage	11.1 watts

Panasonic FV-0510VS1 WhisperValue DC Energy-Saving Bathroom Ventilation Fan, Quiet, Lowest Profile Energy Star Certified Ceiling Mount Fan

Details

Description

Specifications

Reviews

Common Questions