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Manually Adjustable Thermostat for Power Vent

$3685
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  • Adjustable thermostat for power vents
  • Suitable for all Master Flow Brand Single-Speed Power Vents
  • Pre-wired for installation; UL listed
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Product Details

The GAF Master Flow adjustable thermostat is compatible with all single speed power vents and fully adjustable for all climate conditions. Activated by temperature, helping power vents reduce damaging moisture. UL Listed and wired for easy installation.
  • Compatible with all single speed GAF Master Flow and LL Building Products power vents
  • Thermostat temperature ranges can be manually set from 60° to 120°
  • Helps power ventilator reduce damaging attic heat & moisture
  • Adjustable thermostat powers your fan on/off automatically
  • Wired for easy installation
  • UL listed
  • Unit is 15 Amp
  • Return Policy

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

49Questions
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Q:What temperature should I set the thermostat To for my garage attic
by|Sep 12, 2022
2 Answers
Answer This Question

A:  I set it to 90. And all good. 

by|Sep 16, 2022

    A:  The recommended thermostat setting for Attic Ventilation fans is 105°f.

    by|Sep 12, 2022
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      Q:The instructions say, "Do not obstruct the hole provided for airflow past the element." There is no picture of said "airflow hole", so is it correct to assume that said hole is the one on the back of the unit?
      by|Jul 17, 2022
      2 Answers
      Answer This Question

      A:  Yes, the oval opening on the back of the thermostat. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com.

      by|Jul 18, 2022

        A:  The hole is the one in the roof that the fan blades rest in attached to mounting frame on rooftop. The thermostat element is on end of approx 2 ft 'pigtail' connected to motor. It should be open space between hole in roof and pigtail so air flows around pigtail to register temperature accurately.

        by|Jul 20, 2022
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          Q:Hello. i’ll be using this for a walk in pantry that will have the usual food items that regular pantries have. what temp do you recommend this be set?
          by|Jul 10, 2022
          1 Answer
          Answer This Question

          A:  This is an Adjustable thermostat for roof and gable mount power vents, to regulate the temperature in an attic. Any other use or applications are at the discretion of the buyer.

          by|Jul 12, 2022
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            Q:what is the differential and is it adjustable in degrees F
            by|Mar 15, 2022
            6 Answers
            Answer This Question

            A:  Products like this are "usually" in degrees Fahrenheit when sold in the US. However, with shortages today and since we still buy crap from China, if in centigrade, use a simple conversation on your smart phone (unless your too dumb and don't even use turn signals when driving) set at 120 degrees fahrenheit or 48 Centigrade

            by|Jun 15, 2022
              1 found this answer helpful

              A:  Yes it is adjustable in degrees F

              by|Mar 16, 2022

                A:  60 DEGREES TO 120 DEGREES, YES IT IS ADJUSTABLE BY TURNING THE SCREW ON THE DIAL FACE

                by|Mar 17, 2022

                  A:  1: I'm no HVAC pro, but differential pertaining to this thermostat will depend on the outside-temp and airflow exposure of where you mount it. 2: The only adjustment on this über-simple unit is for ambient temp, and the dial/temp adjuster is in Fahrenheit

                  by|Mar 16, 2022

                    A:  Our thermostats are designed to come on at the set temperature(105 degrees F (recommended)) and operate until they reach an approximate temperature 9-10 degrees lower, this is not adjustable. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612 or email warrantyllbp@gaf.com.

                    by|Mar 16, 2022

                      A:  The differential is the functional range of the thermostat. For example if the setpoint is 68 def F with a differential of 2 deg F then the heat would come on at when the temperature drops to 68 and off when the temp is at 70 degs. F. Most differentials are fixed from the factory, but there are models that allow you to change.

                      by|May 30, 2022
                        1 found this answer helpful
                        Showing 1-4 of 49
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                        Customer Reviews

                        4.4 out of 5
                        (235)
                        • 4.4
                          out of 235 reviews
                        • 92%recommend this product
                        Filter by:
                        Showing 1-10 of 235 reviews
                        Works great. Temp in my attic is a lot cooler now during the day. At night early morning the fa...
                        Works great. Temp in my attic is a lot cooler now during the day. At night early morning the fan is off but when it gets hot outside the fan comes on and cools off the garage attic space. It needs better instructions for wiring through.
                        by
                        • DIY
                        • Verified Purchase
                        • Recommended
                        1 found this review helpful
                        Easy to install, simple, compact. Called tech support number included in instructions to confirm...
                        Easy to install, simple, compact. Called tech support number included in instructions to confirm that black wire into device and out to fan through thermostat could be connected to either side of the thermostat black leads. Easily reached tech who confirmed it did not matter.
                        by
                        • Verified Purchase
                        • Recommended
                        4 found this review helpful
                        We were replacing the same unit (10+ years old), simple to install.
                        We were replacing the same unit (10+ years old), simple to install.
                        by
                        • Verified Purchase
                        • Recommended
                        4 found this review helpful
                        by
                        • Verified Purchase
                        Bought to replace the old one that lasted 12 years....
                        Bought to replace the old one that lasted 12 years. Hopefully this product is the same and not some Chinese made crap
                        by
                        Response from Master FlowOct 20, 2022
                        Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                        • Verified Purchase
                        Rating provided by a verified purchaser...
                        Rating provided by a verified purchaser
                        by
                        Response from Master FlowSep 30, 2022
                        Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                        • Verified Purchase
                        Rating provided by a verified purchaser...
                        Rating provided by a verified purchaser
                        by
                        Response from Master FlowSep 16, 2022
                        Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                        • Verified Purchase
                        Rating provided by a verified purchaser...
                        Rating provided by a verified purchaser
                        by
                        Response from Master FlowSep 14, 2022
                        Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                        • Verified Purchase
                        Easy to install and easy to adjust....
                        Easy to install and easy to adjust.
                        by
                        Response from Master FlowSep 15, 2022
                        Thanks for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                        • Verified Purchase
                        by
                        • Verified Purchase
                        Showing 1-10 of 235 reviews

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                        Thermostat TypeHeatOtherHeatHeat
                        Operation TypeMechanicalMechanicalMechanicalMechanical
                        FeaturesNo Additional FeaturesNo Additional FeaturesNo Additional FeaturesNo Additional Features
                        Wire Configuration4-Wire2-Wire4-Wire4-Wire
                        Voltage (volts)120/240 V120 V240/120 V120/240 V
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                        Power OptionsHardwiredHardwiredHardwiredHardwired
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                        THD SO SKU1002852449 10000683901000068395
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