0050206778852

Master Flow

Model PR2DBL

Internet #100324448

Store SKU #673564

1250 CFM Power Roof Mount Vent in Black

$87.30 /each
  • 5 Year Parts Limited Warranty; 3 Year Labor Limited Warranty
  • Adjustable thermostat included
  • Effectively ventilates up to 2400 sq. ft. of attic space

Frequently Bought Together

Product Overview

The Master Flow Pro2 Power Roof Vent is a great overall investment in attic ventilation. This roof vent removes the greatest volume of hot and/or humid air from your attic, compared to our other models, saving you more in heating and cooling costs. Available in black.

  • Helps reduce energy costs and helps prolong the life of the roof and shingles
  • Excellent for roof slopes 3:12-12:12
  • Large pre-punched flashing for easier installation and less chance of leaks
  • Blows hot air outside and cools the attic
  • Galvanized steel construction for durability
  • Heavy duty metal screen deters animals, birds, and insects
  • Miami-Dade county approved and Texas Department of Insurance listed
  • Optional humidistat available (H1) - sold separately

Info & Guides

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Specifications

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Warranty / Certifications

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Customer Questions & Answers

12 Questions14 Answers

Customer Questions & Answers

1250 CFM Power Roof Mount Vent in Black
1250 CFM Power Roof Mount Vent in Black

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2 answers

Can it be mounted on a tin roof?

This question is from 1250 CFM Power Roof Mount Vent in Black
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June 29, 2016
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July 6, 2016
Answer: 
No, this product is designed for an asphalt shingle roof. Please call MasterFlow Technical Services at 800-211-9612, M-F 8A-5P EDT, for any additional questions.
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June 30, 2016
Answer: 
Yes, it can be mounted.
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2 answers

Does this have different speed settings or can a speed control be installed in line?

This question is from 1250 CFM Power Roof Mount Vent in Black
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Fort Collins
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June 25, 2016
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July 6, 2016
Answer: 
No, this is a single speed motor and can not be altered with any speed devices. Speed devices will void the fans warranty. Please call MasterFlow Technical Services at 800-211-9612, M-F 8A-5P EDT, for any additional questions.
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June 26, 2016
Answer: 
No, this model has an adjustable thermostat but does not have different speeds.
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2 answers

Can this be installed on a chimney?

This question is from 1250 CFM Power Roof Mount Vent in Black
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MA
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March 8, 2016
Does this product allow to be placed on top of a chimney for better smoke ventilation?
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March 9, 2016
Answer: 
No, this is not recommended. The motors are not rated for this type of operation. Please call Technical Services at 800-211-9612, M-F 8A-5P ET, with any additional questions.
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March 8, 2016
Answer: 
No, the CFM roof mount is not designed for a chimney.
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1 answer

Can this be installed horizontally, i.e. exiting a wall?

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Anaheim, CA
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August 22, 2016
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August 23, 2016
Answer: 
No ... Only approved for Horizontal installation Only.
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Customer Reviews

Rated 4.5 out of 5 by 14 reviewers.
Rated 2.0 out of 5.0 by Installation difficult due to screen problem I don't like to give negative ratings, but this product deserves it. The package was bent by the delivering agent, and the metal screen at the top of the vent used to keep birds and other pests out was bent. Took over two hours to repair so the blades would turn as product was poorly made. Easy to install if the screen had not been bent. Took the top off and straightened, but then when I put it back on, the screen compressed causing the same problem. Finally had to cut out some of the screen to get the blades to turn. Too much work. July 19, 2016
Rated 5.0 out of 5.0 by Surprisingly quiet and moves a lot of air I bought this unit only for the motor, fan blades, and inner assembly. I needed to replace a twenty year old fan that was screeching and finally died. This unit was of nearly identical diameter. The depth was a couple of inches greater due to the more powerful, larger motor but it still fit well in the existing housing. What a difference this fan made! Even when our old attic fan worked, it wasn't all that effective. It was about 750 CFM, which was marginal for our 1500 square foot attic in the hot and humid Georgia summer. This Master Flow 1250 CFM fan increased our air flow by 67% and it gets the job done. We set it in 105 degrees, the temperature recommended in the installation materials. Our experience is that during the hottest, most humid part of the summer, it will switch on around noon and run mostly continuously until about 6 pm to keep things at 105 or lower. Still, that's during the absolute worst heat, and managing to drop the attic from 130 to 140 degrees down to 105 is well worth it. It's achieving good air pull through the gables on the sides of the attic. Best of all, the fan is very quiet for one with a relatively powerful motor. With the attic door shut, I can barely hear it going in the hallway under the door. Once I walk into one of the adjacent rooms, I cannot hear it at all. No problems with vibration sounds so far. The fan appears to be well made. Overall, this purchase was worth the price. June 30, 2016
Rated 5.0 out of 5.0 by "Peace of Mind" I had this installed by a professional but according to him, everything was included and the instructions and installation went without a hitch. My old fan was only a 12", not only old but was not doing it's job. The new fan gives me peace of mind that it works when it is needed and I do not have to keep checking the attic. August 11, 2015
Rated 5.0 out of 5.0 by Does what it was advertised to do! The fan is quite compared to previous models. In 20 years this is my 3rd power roof mount vent. May 5, 2016
Rated 5.0 out of 5.0 by NIce replacement for an older Master Flow fan. Replaced 10yr old Master Flow fan with this one. Thermostat working good so far. Have not been through the grueling desert summer yet but so far happy with this purchase. Replaced it myself and used a tub of roof sealant underneath base. March 14, 2016
Rated 5.0 out of 5.0 by simple to install and wire, great air flow simple to install and easily wired in. the air flow wasgreat January 19, 2016
Rated 5.0 out of 5.0 by nice product for the money easy to install, good instructions, works exactly how its suppose to October 3, 2015
Rated 5.0 out of 5.0 by Great fan The fan works great and was pretty easy to install. The box comes with a template, so much easier to cut the hole. It's quiet and works great. I had issues with asphalt smell after a new roof and this really helped! Also helped with the heat buildup. Only negative part is it only came in black. August 25, 2015
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