Questions and Answers for Master Flow 1000 CFM Mill Power Roof Mount Attic Fan

A:  You can contact the Master Flow Technical Department at masterflowtech@gaf.com or call 800-211-9612. Please have the receipt and serial numbers when you call.

A:  Each fan should have its own controller. You can purchase two HT1s and swap out controllers, or purchase two H1 s and add it to the thermostat that comes with the fan. If you have any other inquiries please email MasterFlowTech@gaf.com

A:  Yes, it is recommended to replace the motor from inside the attic space. There is a video attached to the replacement motor(PVM105) on the HD page. If you have any inquiries about Master Flow products please email MasterFlowTech@gaf.com

A:  The recommended temperature setting on all Master Flow Attic Fans is 105°f. If you have any inquiries about Master Flow products please email MasterFlowTech@gaf.com

A:  The ERV series has Miami-Dade and FBC approval. Hurricanes have a wide variety of wind speeds, the wind speed and direction would play a part in the sustainable damage to buildings and property.

A:  Ideally they should be evenly spaced on the roof. If you have any other inquiries about our Master Flow products please email, warrantyllbp@gaf.com

A:  The fan does not come with an NFA value when not in use.

A:  Hello Matty, Thank you for your recent inquiry with The Home Depot. This fan does not offer a NFA value when not in use? To calculate NFA, take the attic square footage ÷ 2 = square inches of exhaust and square inches of intake NFA needed. This Attic fan has a 1000 CFM which stands for Cubic Feet per Minute and is a measurement of the cubic feet per minute of air a fan can draw. This means that the higher the CFM, the more powerful the air suction. So a 1000 CFM fan will draw more air than say, a 400 CFM We appreciate your business and look forward to serving you in the future.

A:  All Master Flow ERV and EGV Series fans have a 14" diameter fan blade and a 5" diameter motor.