Master Flow 1250 CFM Power Roof Mount Vent in Weatherwood-PR2DWW at The Home Depot

Master Flow

Model # PR2DWW

Internet # 100073735

Store SKU # 108877

1250 CFM Power Roof Mount Vent in Weatherwood

Master Flow 1250 CFM Power Roof Mount Vent in Weatherwood

This item has been discontinued.
The Home Depot no longer carries this specific product.

$84.60 / each
  • 5 Year Parts Limited Warranty; 3 Year Labor Limited Warranty
  • Adjustable thermostat included
  • Effectively ventilates up to 2400 sq. ft. of attic space


Model # PR2DWW

Internet # 100073735

Store SKU # 108877

Store SO SKU # 813317

Our Power Roof Vents are your best overall investment in attic ventilation. Our vents remove the greatest volume of hot and/or humid air from your attic, saving you more in heating and cooling costs than any other type of ventilation.

  • Reduces energy costs and saves money
  • Large pre-punched flashing for easier installation and less chance of leaks
  • Blows hot air outside and cools the attic
  • Available in four popular colors to complement with your roof
  • Adjustable thermostat included
  • Galvanized steel construction for durability
  • Heavy duty screen deters animals, birds, and insects

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Airflow (CFM)  1250  Amperage (amps)  1.65 
Assembled Depth (in.)  10.25 in  Assembled Height (in.)  30.25 in 
Assembled Width (in.)  30 in  Color Family  Brown 
Cut-Out Diameter (in.)  15  Manufacturer Warranty  5-year Parts Limited Warranty 2-year Labor Limited Warranty 
Material  Galvanized Steel  Power Type  Motor 
Product Depth (in.)  10  Product Height (in.)  30 
Product Weight (lb.)  23.7 lb  Product Width (in.)  30 
Returnable  90-Day  Ventilation Type  Roof 
Voltage (volts)  120  Wildlife Guard  Yes 


Rated 4.5 out of 5 by 33 reviewers.
Rated 5 out of 5 by This Fan Rocks! This was a piece of cake to install. I removed an old heat vent from the roof and cut the existing hole with a jigsaw about 1.5 inches larger. I slid the unit under the shingles, nailed it down and used plastic roof cement as instructed. The electrical hook up was easy as I tied into an existing circuit found in the attic and tied into it using 20 amp wire, staples and a new j-box with switch. This fan has cut my run time on my 5T unit by 25%. I set the t-stat @ 80deg for now as I want the attic to cool at least this low. I'll re-adjust to 95 in July sometime. Great product, low electrical usage and BIG savings on my HVAC usage. June 10, 2014
Rated 4 out of 5 by A good value roof mounted power vent Like all of us, after reading reviews I decided to install this unit in our attic. We're located in Kansas, and our summers aren't like the south, but we do have hot and humid days. The local HD had 3 of these units in stock. Upon opening, the unit was in good shape, no damage. It appears to be a well made fan assembly. I did notice that the "varmint" screen was pulled taught and there was about a 1/4 " gap in some spots. That was quickly remedied with some silicone. The instructions were 1 page with 7 steps. Enough info to do the job for most DIY folks. The container had a 15" diameter template for aiding in cutting your access hole. It took me about 3 hours total to install. I had some sealing membrane leftover from a skylight install, so I used it to seal up the flashing under the surrounding shingles. The color of the cap matches our shingles perfectly. I would have been ok with plain steel or black, but "Weatherwood" is a great color. In addition to the sealing membrane, I also used pure clear silicone to seal everything. You can opt for roofing tar, but if you're not careful it can get away from you and end up in places you didn't want. The thermostat hasn't changed much over the years. Easy hook up to your incoming power. You will probably need to purchase a wire clamp for the thermostat box to be in compliance. That will prevent the wiring from rubbing on the sides of the bare hole. The fan runs fairly quiet. And it does pull more than enough air out of our attic. It comes with a 5 year limited warranty on parts, and an additional 3 year "labor" warranty to have someone remove the fan and reinstall it. Not bad. All in all, I believe this fan is a good value for the current purchase price ($85.50). November 9, 2014
Rated 5 out of 5 by Roof mount vent This installs and wires up like a breeze. I highly recommend. September 16, 2014
Rated 5 out of 5 by So far, So good Just took the fan out of the box for some preliminary testing. Here are my thoughts so far: Well built unit, heavy gauge steel for dome and "duct". Assembled with bolts, not sheet metal screws. Dome supports heavy duty. Fan blade is "3 wing" type with the blades riveted to the hub. Much better design than the 6 blade stamped steel fan used on cheaper models. Fan runs quiet with decent airflow. Electrically the fan uses the PVM105 1/7hp motor. Motor is rated at 1050rpm/1.9amps. Motor is heavy duty PSC design with a 10uf capacitor. PSC motor designs are much more efficient than the cheaper "shaded pole" motors. I hooked it up to a "kill-a-watt" and the Motor Amps read 1.51A, Wattage 163W, Power Factor .88. Power use for a month based on 10hr per day run time would be 50kwh/month. If you pay 10 cents per KWH it cost about $5/mo to run the fan. IMHO the extra $15 over the entry level fan is well worth it. In addition to the better fan blade/motor you also get a paint job. I'll write another review once the unit is actually installed on the roof. July 22, 2011
Rated 5 out of 5 Quiet, and makes a noticeable difference This fan is VERY QUIET!! and moves a decent amount of air, I bought this based on reviews here, vs the one at the big blue box place. Someone on that review site mentioned how loud their unit was, and that they exchanged it for this one sold at the Home Depot. They mentioned that the quality of this fan was significantly better that the blue box one. If you look closely at the pictures on the two websites, you can discern a difference. I bought this fan to install in my recently purchased house that has a hip roof. I went up into the attic a few weeks ago when the temp was in the upper 80's outside, and my attic felt like it was 120F. Someone mentioned that this unit does not come with a template. That is technically true, but......The cardboard packing inside the fan box is cut to the shape of the round inlet. All I did was take that piece up on the roof with me, and it worked like a charm. Wiring the fan was easy. You will need a cable relief/ connector to run your romex (or in my case conduit) to the box that contains the thermostat. The cover pries off. No screw removal needed (but the instructions do not indicate that- and when you are working in the attic, every minute counts). The thermostat box is not too tight, and they give you plenty of wire to work with. Getting the cover back on was a little bit of a chore (in a hot attic- before the fan was running) but you will want to make sure that the U shaped cover piece's tiny lips go over the part with thermostat attached. My fan seems to be perfectly balanced, and there is no vibration felt when touching the unit. The unit is very quiet. When I climbed out of the attic (before replacing the attic access cover) I could not hear the fan while standing on the ground. There is no way you will hear it with the cover in place, I will have to crawl up in the attic occasionally to make sure it is working. I guess I will know it is working, because the temperature in the upper level of my house should be much more comfortable, and hopefully my utility bill will decrease. August 24, 2013
2 3 4 >>


Standard Shipping includes delivery by small parcel service. Processing time varies by product.

Orders for this item may be expedited for an additional fee.

Other Delivery Options:

Express and Expedited shipping options are also available. Estimated arrival times are available in checkout.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.