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Customer Reviews for Master Flow 1250 CFM Black Power Roof Mount Attic Fan

Internet #205924921

Model #ERV5BL

Store SKU #1001332803

  • Attic fan helps cool up to 2,200 sq. ft. of attic space
  • Compact fan size with hemmed dome for a sleek look
  • High efficiency attic fan motor with adjustable thermostat

Customer Reviews

  • 4.3
    out of 208 reviews
  • 81% recommend this product
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Showing 1-30 of 208 reviews
GREAT FANS
Had to replace to sale house
by
Response from Master FlowApr 20, 2022
Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
  • Verified Purchase
by
  • Verified Purchase
Easily installed and quiet when running....
Easily installed and quiet when running.
by
Response from Master FlowApr 21, 2022
Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
  • Verified Purchase
Easy to install. Functioned as it should....
Easy to install. Functioned as it should.
by
    Rating provided by a verified purchaser...
    Rating provided by a verified purchaser
    by
    Response from Master FlowOct 5, 2022
    Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
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            Just after installed the fan at our roof, the brand...
            Just after installed the fan at our roof, the brand new fan motor didn't work. I am still waiting for the replacement motor. Do they complete any quality check before shipping out the product?
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                Cool garage
                Very quiet. Ez install
                by
                • Verified Purchase
                • Recommended
                The reviews were good and this one had the color...
                The reviews were good and this one had the color to closely match my shingles so I purchased it. That said it was a fairly easy installation that went well. The only negative is the length of the included armor cable - It could have been several inches longer for easier placement. But I made do with what was given and included a standard on/off switch in case I needed to kill the power to the fan. Fan performance is yet to be tested but it does come on and shut off when expected.
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                Response from Master FlowOct 5, 2022
                Thank you for the feedback. Glad you were satisfied with your Master Flow purchase and we value your concerns. MasterFlow
                  It’s an arctic fan. Easy to install if you know...
                  It’s an arctic fan. Easy to install if you know what your doing. It takes the heat out. We have a small house 1200sq ft. It does the job.
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                  Response from Master FlowOct 3, 2022
                  Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                    Quality product, nice black finish, quiet operation...
                    Quality product, nice black finish, quiet operation
                    by
                      NOT WHAT I EXPECTED !!!
                      Well its working some...but not what i expected since i place 2 of them on our roof !!! House is a littler cooler but not enough
                      by
                      Response from Master FlowOct 5, 2022
                      Sorry for your experience. This is not a common issue for this product. Thank you for your feedback. MasterFlow
                      • Verified Purchase
                      Exactly what I needed to fix my broken air vent....
                      Exactly what I needed to fix my broken air vent.
                      by
                      Response from Master FlowOct 4, 2022
                      Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                        Very nice looking fan and works well in the attic....
                        Very nice looking fan and works well in the attic. It wasn’t quite clear how to hook up the thermostat but I finally figured it out and it works fine
                        by
                          I have used this brand before and has held up...
                          I have used this brand before and has held up well. Easy to install easy to wire will use again.
                          by
                          Response from Master FlowOct 4, 2022
                          Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
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                                  wo0rks well up to now and really helping with my...
                                  wo0rks well up to now and really helping with my super hot attic
                                  by
                                  Response from Master FlowOct 4, 2022
                                  Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                                  • Verified Purchase
                                  Great price and easy to install...
                                  Great price and easy to install
                                  by
                                  • Verified Purchase
                                  Works like it should...
                                  Works like it should
                                  by
                                  • Verified Purchase
                                  So far so good. F it lasts for ten years...
                                  So far so good. F it lasts for ten years I’ll be happy.
                                  by
                                  Response from Master FlowMar 18, 2022
                                  Thanks for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                                  • Verified Purchase
                                  Well built for the money. Would like to see it built better; longer lasting warranty on motor. (...
                                  Well built for the money. Would like to see it built better; longer lasting warranty on motor. (which is why I only gave it 4-stars) Used this unit to replace the former Broan roof fans that were 4 amp. This fan is 1.+ amp which means it uses less electricity so that is probably a good thing. This fan also is quieter than the former 4amp Broan. You may want to provide an electric connection box just under the fan blade. This way when, and if you need to replace the motor, you can access everything from the roof-side if needed. If the motor lasts 10 years and your roof shingle is lasting 20+ years replacing the entire housing will be difficult, it will be easier to replace the motor/fan unit, which is what I did. (I disconnected the bottom flashing from the circular housing, slid it over existing flashing and screwed to existing) I have a 40-year shingle; hence the desire for a longer lasting motor. The suggestion to put a connection box just under the fan blade is this based on my inside access which is a very, very cramped space in my 1920's bungalow house. I also put a piece of hardware cloth over the hole; I have had neighbor who have had squirrels, etc. get into their attic. (You should always be thinking of rodent-proofing; hardware cloth is your friend.) I also have this fan on an "arc fault circuit breaker". Good Wrenching !
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                                  Response from Master FlowApr 25, 2022
                                  Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                                  • Verified Purchase
                                  • Recommended
                                  Easy to install and works well....
                                  Easy to install and works well.
                                  by
                                  • Verified Purchase
                                  Operates quietly and easy to install and set operating temperature....
                                  Operates quietly and easy to install and set operating temperature.
                                  by
                                  Response from Master FlowOct 3, 2022
                                  Thanks for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                                  • Verified Purchase
                                  The fan shipped well and was installed without any trouble,...
                                  The fan shipped well and was installed without any trouble, it clears the hot air in my garage quite well and I'm happy with the product.
                                  by
                                  Response from Master FlowOct 4, 2022
                                  Thanks for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                                  • Verified Purchase
                                  Easy to install and quiet. Our fan motor bearings went...
                                  Easy to install and quiet. Our fan motor bearings went bad and was extremely noisy. This fixed the problem perfectly.
                                  by
                                  Response from Master FlowOct 3, 2022
                                  Thanks for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                                  • Verified Purchase
                                  Showing 1-30 of 208 reviews

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