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Model # ERV5BL

Internet #205924921

Store SKU #1001332803

Master Flow 1250 CFM Black Power Roof Mount Attic Fan
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0050206035955

Master Flow

1250 CFM Black Power Roof Mount Attic Fan

  • Helps cool attics up to 2,200 sq. ft. in size
  • Compact size with hemmed dome for a sleek look
  • High efficiency motor with adjustable thermostat
$ 98 00
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Frequently Bought Together

Frequently Bought Together

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Product Overview

  • Helps cool attics up to 2,200 sq. ft. in size
  • Compact size with hemmed dome for a sleek look
  • High efficiency motor with adjustable thermostat
Master Flow ERV5BL Power Roof Vent is a great overall investment in attic ventilation. They can quickly remove a larger volume of hot and/or humid air from your attic, compared to static ventilation, which helps save money on your heating and cooling costs. The ERV5BL, Power Roof Mount Vent can move air at a rate of up to 1250 cu. ft. per minute. For attic spaces up to 2200 sq. ft.
  • Energy efficient, uses up to 55% less electricity than typical competitor's vents (based on GAF testing at 120-Volt)
  • Helps to reduce energy costs and helps prolong life of the roof and shingles
  • Galvanized steel construction for durability
  • Excellent for roof slopes 3:12-12:12
  • Optional humidistat available (H1) - sold separately
  • Heavy-duty internal screen helps prevent animal infestation



Product Overview

  • Helps cool attics up to 2,200 sq. ft. in size
  • Compact size with hemmed dome for a sleek look
  • High efficiency motor with adjustable thermostat
Model #: ERV5BL
Sku #: 1001332803
Internet #: 205924921

Master Flow ERV5BL Power Roof Vent is a great overall investment in attic ventilation. They can quickly remove a larger volume of hot and/or humid air from your attic, compared to static ventilation, which helps save money on your heating and cooling costs. The ERV5BL, Power Roof Mount Vent can move air at a rate of up to 1250 cu. ft. per minute. For attic spaces up to 2200 sq. ft.

  • Energy efficient, uses up to 55% less electricity than typical competitor's vents (based on GAF testing at 120-Volt)
  • Helps to reduce energy costs and helps prolong life of the roof and shingles
  • Galvanized steel construction for durability
  • Excellent for roof slopes 3:12-12:12
  • Optional humidistat available (H1) - sold separately
  • Heavy-duty internal screen helps prevent animal infestation



Info & Guides

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Info & Guides

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Ratings (53) (139) (139) (7)
Power Type Electric Powered Electric Powered Electric Powered Solar Powered
Wildlife Guard Yes Yes
Ventilation Type Roof Roof Roof Roof
Material Galvanized Steel Galvanized Steel Galvanized Steel Galvanized Steel
View Product View Product View Product View Product

Specifications

Dimensions

Cut-Out Diameter (in.)
15
Product Depth (in.)
25
Product Height (in.)
9
Product Width (in.)
25

Details

Airflow (CFM)
1250
Amperage (amps)
1.35
Color Family
Black
Color/Finish Family
Black
Horsepower (hp)
1/12
Material
Galvanized Steel
Power Type
Electric Powered
Product Weight (lb.)
17lb
Recommended Sq. Ft.
2200
Returnable
90-Day
Thermostat Controlled
Yes
Ventilation Type
Roof
Voltage (volts)
120
Wildlife Guard
Yes

Warranty / Certifications

Manufacturer Warranty
5-year Limited Parts/3-year Labor Warranty

Specifications

Dimensions

Cut-Out Diameter (in.)
15
Product Depth (in.)
25
Product Height (in.)
9
Product Width (in.)
25

Details

Airflow (CFM)
1250
Amperage (amps)
1.35
Color Family
Black
Color/Finish Family
Black
Horsepower (hp)
1/12
Material
Galvanized Steel
Power Type
Electric Powered
Product Weight (lb.)
17lb
Recommended Sq. Ft.
2200
Returnable
90-Day
Thermostat Controlled
Yes
Ventilation Type
Roof
Voltage (volts)
120
Wildlife Guard
Yes

Warranty / Certifications

Manufacturer Warranty
5-year Limited Parts/3-year Labor Warranty

Questions & Answers

I live in south Florida. I am concerned about high winds blowing water in through the ventilator...

I live in south Florida. I am concerned about high winds blowing water in through the ventilator to the attic. I know from other answers that it's Miami-Dade county rated, but so far as I know that's rating on penetration resistance to flying objects. What about water?
Asked by: Gary
We just made it through a very wet winter here in San Francisco bay area this year and not a drop but we dont get super high winds. Had it for almost a year now...
Answered by: Norm
Date published: 2019-04-04

Replacing two ventilators can two of these be installed on a 2150 sq ft home

Asked by: Wildwood
The only limit is how much return air is available. You cannot exhaust more than you can supply without shortening the life of the motor.
Answered by: Zen
Date published: 2019-01-01

how is the noise level of this unit?

how is the noise level of this unit?
Asked by: Frank
From the living room directly under the fan, I can hear a faint hum from the fan. It's barely noticeable, I have to stop and listen for it.
Answered by: Handyman15
Date published: 2019-05-22

How much does this add to the electric bill a month? What temperature should attic fan be set at?

How much does this add to the electric bill a month? What temperature should attic fan be set at?
Asked by: ken
does not add but a few cents a month... setting the temp is a judgement call. some put at highest setting, I like halfway as we have 2 other solar attic fans so we can keep the attic cooler
Answered by: Diane
Date published: 2018-06-25
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Customer Reviews

1250 CFM Black Power Roof Mount Attic Fan is rated 4.5 out of 5 by 139.
Rated 5 out of 5 by from Delivery was quick and free, unit arrived free of damage. Installation was easy, I only needed a... Delivery was quick and free, unit arrived free of damage. Installation was easy, I only needed a pencil, saw, hammer, flat pry bar, roofing nails, 1 tube of roof pitch, utility knife, and enough wire to run from my power source to the fan. The top half will go underneath two rows of shingles, the bottom will be on top of two rows. With the 1500 cfm fan, I'm showing steady electric use of 170 watts. At my electric cost of 13 cents per kWh, fan operation costs 2.2 cents per hour. My AC air handler is in my attic; the system does seem to run slightly less often, shorter cycles, and does not blow nearly as much hot air at the start of a cycle. I installed some additional vents in my soffits and front porch ceiling to ensure good air circulation.
Date published: 2019-05-21
Rated 5 out of 5 by from just had it in for a week, seems to be a superb product my only complaint was the fact that a fan blade was bent just a little from from packing and shipping> the thermostst was was just lying inside the the fan blades, thus one blade was bent just a tad. thought about taking it back but realizing they were all packed the same I kept this one. hooked it up on the work bench and it sounded like a helicopter taking off. spent a little time (15 minutes) re aligning the blades and now you can't hear it run unless your're real close to it. on the roof and running for a week or better. so quiet you can't hear it in the house at all. have it set to come on at about 102 degrees and it shuts off at about 98 degrees. the temperature used to get to 135-140 degrees in the afternoon, now it only goes to 115 yes I have a thermometer in the attic to check the temps. the attic is 1728 square feet, so I think this is the answer to a cooler house. and less work for the A.C. unit
Date published: 2015-09-02
Rated 5 out of 5 by from I had my roofing guy install the fan and... I had my roofing guy install the fan and it works perfect. I hooked up the electric myself, and it’s actually relatively quiet, really does a nice job moving the hot air out of the attic. I can already tell a big difference upstairs in the temperature.Neil
Date published: 2019-04-09
Rated 4 out of 5 by from The Master Flow 1250 was installed today and appears to... The Master Flow 1250 was installed today and appears to be working well. Could have given it a “5” star instead of “4” but found it to have some vibration. I plan to buy anothe4 on and have it installed as a reserve or to switch for different years!
Date published: 2019-04-23
Rated 1 out of 5 by from Purchased this fan on 8/25/27 and installed in September 2017. The fan motor burned out spring of... Purchased this fan on 8/25/27 and installed in September 2017. The fan motor burned out spring of 2019. The motor is made in China. Most anything that is from China is not made well and will fail.
Date published: 2019-05-19
Rated 2 out of 5 by from Fan works, but the thermostat was broken. The whole thing... Fan works, but the thermostat was broken. The whole thing looked like it was used. I guess that is what you get when you buy online.
Date published: 2019-05-22
Rated 5 out of 5 by from Works really well. We used it for our 600sq ft... Works really well. We used it for our 600sq ft attic and it makes a world of difference.
Date published: 2019-04-23
Rated 5 out of 5 by from Great fan, easy to install, very quiet, thank you Home Depot. Great fan, easy to install, very quiet, thank you Home Depot.
Date published: 2019-04-30
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