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Model # ERV4M

Internet #205924928

Store SKU #1001332799

Master Flow 1000 CFM Mill Power Roof Mount Attic Fan
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0050206035948

Master Flow

1000 CFM Mill Power Roof Mount Attic Fan

  • Helps cool attics up to 1,600 sq. ft. in size
  • Compact size with hemmed dome for a sleek look
  • High efficiency motor with adjustable thermostat
$ 78 00
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • Helps cool attics up to 1,600 sq. ft. in size
  • Compact size with hemmed dome for a sleek look
  • High efficiency motor with adjustable thermostat
Master Flow ERV4 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 ERV4, Power Roof Mount Vent can move air at a rate of up to 1000 cu. ft. per minute. For attic spaces up to 1600 sq. ft.
  • Energy efficient uses up to 55% less electricity than typical competitor's vents (based on GAF testing at 120-Volt)
  • Helps reduce energy costs and helps prolong the 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 1,600 sq. ft. in size
  • Compact size with hemmed dome for a sleek look
  • High efficiency motor with adjustable thermostat
Model #: ERV4M
Sku #: 1001332799
Internet #: 205924928

Master Flow ERV4 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 ERV4, Power Roof Mount Vent can move air at a rate of up to 1000 cu. ft. per minute. For attic spaces up to 1600 sq. ft.

  • Energy efficient uses up to 55% less electricity than typical competitor's vents (based on GAF testing at 120-Volt)
  • Helps reduce energy costs and helps prolong the 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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Name 1000 CFM Power Roof Mount Vent in Mill 1000 CFM Mill Power Roof Mount Attic Fan 1250 CFM Weathered Wood Power Roof Mount Attic Fan 1500 CFM Power Roof Mount Attic Fan in Shingle Match Weathered Wood
Brand Master Flow Master Flow Master Flow Master Flow
Ratings (33) (48) (41) (90)
Power Type Electric Powered Electric Powered Electric Powered Electric Powered
Wildlife Guard Yes Yes 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)
1000
Amperage (amps)
1.35
Color Family
Steel
Color/Finish Family
Silver
Horsepower (hp)
1/12
Material
Galvanized Steel
Power Type
Electric Powered
Product Weight (lb.)
17lb
Recommended Sq. Ft.
1600
Returnable
90-Day
Thermostat Controlled
Yes
Ventilation Type
Roof
Voltage (volts)
120
Wildlife Guard
Yes

Warranty / Certifications

Manufacturer Warranty
5-year Limited Parts/2-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)
1000
Amperage (amps)
1.35
Color Family
Steel
Color/Finish Family
Silver
Horsepower (hp)
1/12
Material
Galvanized Steel
Power Type
Electric Powered
Product Weight (lb.)
17lb
Recommended Sq. Ft.
1600
Returnable
90-Day
Thermostat Controlled
Yes
Ventilation Type
Roof
Voltage (volts)
120
Wildlife Guard
Yes

Warranty / Certifications

Manufacturer Warranty
5-year Limited Parts/2-year Labor Warranty

Questions & Answers

Is the animal guard metal or plastic? Thanks

Is the animal guard metal or plastic? Thanks
Asked by: DMU
Mine was metal
Answered by: Mine
Date published: 2018-09-10

Does this unit have louvers?

Asked by: cvs
No, this unit does not have louvers.
Answered by: CommunityAnswer
Date published: 2018-03-28

Why does it have to be located 24" below the ridge. I would like to install in a storage shed clo...

Why does it have to be located 24" below the ridge. I would like to install in a storage shed closer to the ridge.
Asked by: Arrie
In most cases it gives protection from wind driven rain. This fan helps cool attics up to 1,600 sq. ft. in size and requires 480 Sq. Inches of NFA intake. I would not recommend this for a storage shed. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.
Answered by: Master Flow
Date published: 2018-09-18

Could this be installed on an outside wall of a 14 x 23 pool room? If not, do you have a product that could?

Asked by: Swimmer
You should I have mine wall mounted on my garage and it does fine. No water gets in
Answered by: gbtinsr
Date published: 2019-02-11
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Customer Reviews

1000 CFM Mill Power Roof Mount Attic Fan is rated 4.5 out of 5 by 48.
Rated 4 out of 5 by from Easy to install. No further info as I immediately sold... Easy to install. No further info as I immediately sold the house.
Date published: 2019-02-06
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2019-02-06
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2019-02-06
Rated 4 out of 5 by from I took the motor and fan assembly out of the cowl unit to replace an existing Master Flow attic f... I took the motor and fan assembly out of the cowl unit to replace an existing Master Flow attic fan unit that froze up. It was better than hiring a roofer AND an electrician to replace the entire fan. It was also cheaper to buy this whole unit than to buy the motor and fan separately. I suspect that the metal housing on this unit will eventually rust over which is quite ugly. I do not know of Home Depot sells Master flow units that are rust proof. BTW. I was able to put the unused metal housing in our recycling bin. As far as this unit working well, the motor and fan fit into my existing housing perfectly and is running perfectly.
Date published: 2017-07-11
Rated 3 out of 5 by from Bottom Line: Good product, easy to install, but it didn't help my attic temperature. I installe... Bottom Line: Good product, easy to install, but it didn't help my attic temperature. I installed this on my roof without much difficulty and it works well. It pushes a lot of air out of the attic and it is quiet. I can't even tell when it's on. I attached it to an extension cord (by cutting off the female end) and plugging it into an outlet in the garage. This gives me a virtual kill switch when I want to turn it off, like in the fall when I want to keep the heat in the attic. Biggest downside: The actual temperature in my attic at the rafters above my ceiling did not change one degree whether the fan is on or off (it stayed 110 degrees). I think the problem is that it is pulling the majority of the outside air from my air vents (near the ridge) and then pushing it out. In essence, most of the cooler air coming in is being vented outside by the fan. I need more air disturbance in the attic and more soffit vents. Before you buy this, make sure you have plenty of soffit vents, otherwise I don't believe it will do you much good. Were I to do this again, I would just put in a couple of vents and better insulate my attic. Of note: it used 145 Watts when in operation according to my meter.
Date published: 2017-07-13
Rated 3 out of 5 by from I bought this to illuminate my back yard but it... I bought this to illuminate my back yard but it doesn’t cook my steaks completely. I’ll just wait to see how well it works for snow removal this Summer.
Date published: 2018-10-09
Rated 5 out of 5 by from Good quality, roofers had no problems installing on our new... Good quality, roofers had no problems installing on our new metal roof. Works great cools off attic more than I expected.
Date published: 2018-08-28
Rated 4 out of 5 by from great for the money great for the money
Date published: 2018-09-11
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