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Home Depot Master Flow brand attic and whole house fans clearance ~75% off YMMV B&M

$80.03
+86 Deal Score
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I was at Home Depot buying some plywood and noticed they had several of their fans on clearance for around 75% off. These deals are all in-store only and YMMV - these prices were seen in the Seattle area. Home Depot product links are given only as reference.

Master Flow 6000 CFM 30 in. Belt Drive Deluxe Whole House Fan with Shutter
$80.03
Brickseek [brickseek.com]
Home Depot product page [homedepot.com]

Master Flow 1250 CFM Weathered Wood Wi-Fi Power Roof Mount Attic Fan
$43.03
Brickseek [brickseek.com]
Home Depot product page [homedepot.com]

Master Flow 1250 CFM Weathered Wood Power Roof Mount Attic Fan
$25.03
Brickseek [brickseek.com]
Home Depot product page [homedepot.com]

Master Flow 1450 CFM Wi-Fi Power Gable Mount Attic Fan
$35.03
Brickseek [brickseek.com]
Home Depot product page [homedepot.com]

ETA: two more clearance models, thanks farmingafuture and gutterman

Master Flow 500 CFM Solar Powered Roof Mount Attic Fan
~$65
Brickseek [brickseek.com]
Home Depot product page [homedepot.com]

Master Flow 4500 CFM 24 in. Direct Drive Whole House Fan with Shutter
~$62
Brickseek [brickseek.com]
Home Depot product page [homedepot.com]
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Created 01-20-2020 at 07:40 PM by sassnak
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01-20-2020 at 08:51 PM
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#3
Does anyone have experience installing one of these? Our house has radiant heat and I've heard it's a good option to flush out stale air in the winter.
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#4
I've heard people in SoCal rave about these in the summer. Might have to give it a try if I can find one at this price.
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#5
Whata the zip code where these were seen. . Sold out in my location but I am willing to travel.. thanks in advance
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#6
Quote from bc1999
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Whata the zip code where these were seen. . Sold out in my location but I am willing to travel.. thanks in advance
8 of the big guy and a ton of the little guy on Long Island. Other ones are sold out or normal price.
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#7
I have seen nothing but negativities regarding the worth of attic fans. Whole house fans may be worth it though. I've never had either FWIW
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Quote from Microtubule
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I have seen nothing but negativities regarding the worth of attic fans. Whole house fans may be worth it though. I've never had either FWIW
If your attic isn't air sealed then yes it's a terrible idea. It'll pull air from your soffit vents but also conditioned/heated air in your house if there is air leaks. Otherwise they should work great assuming you have enough intake via soffit vents or whatever way your intake works, and you don't have any other exhaust types such as a ridge vent.
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#9
I have two that were installed prior to us buying the house. They have never worked, and not really looking to fix them. If you think about it, the interior of your house is fairly close to sealed to keep the cool air in (during the summer). If you are venting the attic air, it has to be replaced with air from somewhere else. That means either from outside the house, or also possibly through all the cracks and unsealed spaces to the living space of your home.

Unless you had two, where one was pulling in air, and one pushing out air like a computer cooling system might do...
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#10
Quote from daltonio
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If your attic isn't air sealed then yes it's a terrible idea. It'll pull air from your soffit vents but also conditioned/heated air in your house if there is air leaks. Otherwise they should work great assuming you have enough intake via soffit vents or whatever way your intake works, and you don't have any other exhaust types such as a ridge vent.
Thank you for the response. I assume making sure everything is completely sealed is quite the undertaking.
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#11
Quote from malogus
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I have two that were installed prior to us buying the house. They have never worked, and not really looking to fix them. If you think about it, the interior of your house is fairly close to sealed to keep the cool air in (during the summer). If you are venting the attic air, it has to be replaced with air from somewhere else. That means either from outside the house, or also possibly through all the cracks and unsealed spaces to the living space of your home.

Unless you had two, where one was pulling in air, and one pushing out air like a computer cooling system might do...
We have a slightly jerry-rigged one in our attic - 1200 CFM which is a little too small BUT it does work a bit - we only turn it on when we open the windows from outside. It helps quite a bit.
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#12
Whole house fan is pretty awesome provided the air outside is cooler then inside. I've been searching for a replacement rectangular shutter for the 50's model one we have in our hall. It's not plastic like new ones and rattles to high hell but man does it move some serious air through the house.
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#13
Quote from daltonio
:
If your attic isn't air sealed then yes it's a terrible idea. It'll pull air from your soffit vents but also conditioned/heated air in your house if there is air leaks. Otherwise they should work great assuming you have enough intake via soffit vents or whatever way your intake works, and you don't have any other exhaust types such as a ridge vent.
I have 4 vents in my large attic. In order to drop the 120 deg temps down 10-15 deg on a hot day, I blow outside air in, so that my ac blower doesn't blow tepid cold air.
Now if only for the winter, I could seal up all those vents, and then blow the warm air back into the house. But house developers and basic AC systems aren't made to do rudimentary things outside their purview.
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Last edited by tacoreactor January 21, 2020 at 06:37 AM.
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#14
Quote from scgt1
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Whole house fan is pretty awesome provided the air outside is cooler then inside. I've been searching for a replacement rectangular shutter for the 50's model one we have in our hall. It's not plastic like new ones and rattles to high hell but man does it move some serious air through the house.
IKR?! It's like A/C on steroids!
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#15
A whole-house-fan (or attic fan) is one of the best thing you never knew you wanted. The ability to flush out your house's air as well as keeping the attic air fresh and ventilated is wonderful!
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