Questions and Answers for Master Flow 1500 CFM Shingle Match Weathered Wood Power Roof Mount Attic Fan

A:  This is rated at 1080 RPMs. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com .

A:  No, Master Flow Attic fans have single speed motors. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com .

A:  No, this is only for attic ventilation.

A:  No, this fan should not be connected to ducting. If you have any other questions about Master Flow products please email warrantyllbp@gaf.com .

A:  I do not think you can. It is really a Roof Mount or side mount fan. through the wall. I did as replacment of Roof Mount unit.

A:  This should be hard wired in according to local electrical and building codes. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com.

A:  I did this on one of my fans and it works fine.

A:  We do not have a recommended installation procedure for tile roofs. It is designed for asphalt shingles. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.

A:  It can be a 15 amp breaker, with at least 3 amps available for the circuit. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com or call Technical Services at 800-211-9612, Mon- Fri, 8 am 5 pm EST.

A:  The only time I hear it is when I am in our walk in closet and it's only a faint humming sound.

A:  Compared to my previous 10 year old fan it is very quiet. I literally have to open the hatch to the attic to hear it. In the room below I can not really tell if it is on or not, unless I actually open the ceiling attic hatchway. Hope this helps you.

A:  Current Master Flow fans do not have a decibel rating, the previous model were rated at 44 decibels. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com or call Technical Services at 800-211-9612, Mon- Fri, 8 am 5 pm EST.

A:  From inside de house you cannot notice the fan is on. So, it make some noise but only if you are close to it on the outside.

A:  Attic ventilation is both Intake Air and Exhaust Air. You should never have more Exhaust than Intake. Soffit Intake is preferred, this will circulate air from the bottom up. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com or call Technical Services at 800-211-9612, Mon- Fri, 8 am 5 pm EST.

A:  Yes, you need air to come in and it does not matter how. Most attics have that at the soffit.

A:  The Heavy-duty internal screen helps prevent animal infestation. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com or call Technical Services at 800-211-9612, Mon- Fri, 8 am 5 pm EST.

A:  This fans opening is 14.5 inches Round. That is the size hole you need to cut in the Roof for proper ventilation for this fan. I'll attach a picture below so you can see what it looks like from inside. But to answer your concern, You will lose way too much heat if you don't have a way to seal off this fans massive 14.5 inch hole in your Roof and you'll also want the Service disconnect switch where you can reach it so you could turn it off in the winter, if not, it would kick on and suck all the heat right outside due to the built on thermostat.

A:  Depending on fan unit, 16" to 19" cut out hole. Air flow is the same as ridge vent ventilation. There is minimal air circulation increase as you haven't changed soffit vents.

A:  Master Flow does not recommend using this as you have described. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com .

A:  If you mount it up on the highest area of the house, it will naturally provide ventilation/circulation flow even when the motor is off. When we first installed it, we could feel a force of air heading out from under the fan cover before we even wired it in. Naturally you would need to ensure you have an appropriate amount of vent area in the eves to create a natural flow.