we live on the coast, how will the outside housing stand up to the constant salt air?
A. The Delta Electronics VFB25ADH external housing is made of high-quality plastic, that is not affected by salt air.
what is the grille made of?
A. The Delta Electronics VFB25ADH grille is ABS material like pvc pipe. Acrylonitrile Butadiene Styrene. Thank you for the question. You can reach me by email (which is quickest) or on ext. 341. Have a wonderful day and happy home improving!
What do you recommend for a bathroom fan to prevent mold build up on the walls from the shower?
A. Its you have moisture build up, it might be a good idea to increase the fan CFM or get a dehumidifier for the room.
I would like some details on how the humidity sensing works. Do you just leave it "on" all the time and then it switches on and off depending on the humidity?
A. As long as it is set to on, if the humidity reaches above a set point, the fan kicks on. The set point is at 50% humidity and not adjustable. Typically, after someone takes a shower or bath, the fan continues to run until the air in the room is de-humidified. Of course, the humidity sensing feature can be set to off, as well. The conventional wall switch toggles the humidity sensing feature on and off.
the install sheet says Do not install this ventilating fan where air temperature may exceed 40 degreese c. Does this mean not to put it in my attic where tempature will exceed this tempature or is this talking about thempture of the exhausted air?
A. It is referring to the temperature of exhausted air.
The flange on the fan housing would rest against the sheetrock on the room side ? I am trying to replace an existing fan the Delta. Also how do you overide the humidity sensor if you want to run the exhaust fan manually?
A. Yes, the metal flange of the fan box will contact the drywall when installed. The humidity sensor can easily be overridden by simply cycling the wall switch. Turning the switch on will power the VFB25ADH in Humidity Sensing mode, and cycling the switch on/off/on will override the sensor and power the fan in full-speed mode. No special controls are needed.