Master Flow 1600 CFM Tandem Whole House Fan-WHFTAN1 - The Home Depot

Master Flow

Model # WHFTAN1

Internet # 100550564

Store SKU # 221621

1600 CFM Tandem Whole House Fan

Master Flow 1600 CFM Tandem Whole House Fan

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

$447.00 / each
  • 5 Year Parts Limited Warranty; 2 Year Labor Limited Warranty
  • Two independent motors
  • Maximum house size for optimum performance: 2500 sq. ft.


Model # WHFTAN1

Internet # 100550564

Store SKU # 221621

The Master Flow 1,600 CFM Tandem Whole House Fan is a smart energy saver for any home in a climate where air conditioning costs are a concern. This fan will allow you to beat the heat by forcing hot air out of your home through your attic space while bringing in cooler outside air through your windows and doors. It features simple, 2-speed, remote-controlled operation. It is easily installed between 16 in. or 24 in. on center joists. No joist cutting needed. The fan unit is concealed behind the air return grille (included) in a white finish.

  • Moves air at a rate of up to 1600 CFMs
  • 2-speed operation with remote control with 4 hour timer
  • Insulated door helps avoid heat loss in winter
  • Includes air return grille in white
  • ETL Approved (US & Canada)
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Assembled Depth (in.)  18 in  Assembled Height (in.)  9 in 
Assembled Width (in.)  25.75 in  Cut-Out Left to Right Width (in.)  23.25 in 
Product Depth (in.)  18  Product Height (in.) 
Product Width (in.)  25.75 
Amperage (amps)  2.9  Color Family  White 
Color/Finish Family  White  Material  Galvanized Steel 
Product Weight (lb.)  28 lb  Returnable  90-Day 
Voltage (volts)  120 
Warranty / Certifications
Manufacturer Warranty  5-year Parts Limited Warranty 2-year Labor Limited Warranty 


Rated 2.7 out of 5 by 23 reviewers.
Rated 5.0 out of 5.0 by Easy install and beats expectations I have installed 4 of the 24" whole house fans in various homes and have always been hesitant in installing this fan due to the increased cost and poor reviews. At the insistence of my wife we decided to use this fan and if it didn't work we could easily install the full 24" fan. The house we live in is 101 years old and is lathe and plaster and after the framing out the hole the instillation was EASY. This unit is not silent but it is about 40% quieter than the 24" whole house fans without having to cut any joists. The fan works great and looks great. If you are looking for a QUIET solution for cooling, use AC, if you want a cost effective ambient cooling solution this fan is great and although it is not quiet it is more quiet than other comparable solutions June 29, 2014
Rated 5.0 out of 5.0 by Excellent product in use for 7 years! Purchased this product in May 2007 and installed it myself. Easy and relatively quick. Yes, it is a bit noisy, but we run a fan in our bedroom at night to cover up outside suburban noise anyway, so the unit does two jobs for us. It moves lots of air. The trick: only open windows a couple of inches in each primary room. If you open ALL the windows, you will not feel the air moving. Only issue is the remote is wearing out from frequent use. Where do I get a new remote? Would buy another of these units without a second thought. October 14, 2014
Rated 5.0 out of 5.0 by Performs as advertised After reading a number of the reviews, I was a little worried about the quality and 'noise level' of this unit. The price was the determining factor and decided to go ahead and purchase. Installation was pretty easy! The instructions do not mention it, but I added some half inch weather stripping between the joist and the unit to help cut down on the noise. It worked out great! Don't get me wrong, it's not whisper quiet, but if you ask me, the noise level is acceptable. I live in the mid-West and have 4 levels in my 2,000 sq. ft. house. So, I don't have to tell you the temp difference from the bottom level to the top level! When the outside temp is cooler than inside, it takes about 30 minutes to drop the temp of the house down by 5-10 degrees on the top level of the house! Big difference! If you're debating on putting in a whole house fan, I seriously recommend you take a hard look at this product. Price is reasonable and quality is good. It was a great purchase for me! Definitely would recommend. May 6, 2014
Rated 5.0 out of 5.0 by Tandem Whole House Fan I recently had a whisperaire whole house fan that was discontinued because of problems with the product. I really liked the size, remote control, and the fact you didn't have to do major reconstruction to install. When looking for a replacement I came across the Tandem Whole House Fan and read the 4 or 5 reviews available and was very discouraged. I asked my wife if she thought someone had a really good experience with a product if they would take the time to write a review or if it were only those with bad experiences. So, that is why I am here. We rolled the dice against all written reviews and purchased the tandem whole house fan. It fit in the hole left by my old fan, piece of cake, wired it up and pushed the remote waiting for the worst god awful noise in the world. Yes, it is a little loud but what whole house fan is not. It remminds me of the old box fans we put in the open window when I was a kid, a little hum and presto cool air. My wife and I absolutely LOVE this fan for a few reasons. Ease of installation and no major remodelling required to install. No major wiring nightmares to install a switch cause it is remotely operated. Turn it on high with a few windows open and it circulates cool air from outside through the house. We turn it on early in the morning with just our bedroom windows open and it gets down right chilly in our bedroom. We installed the unit in our central hallway and our house is about 1250 square feet it works as advertised. For me and mine this is a perfect fit and we are more than satisfied with its performance. July 29, 2009
Rated 1.0 out of 5.0 by Too loud for too little I bought this product primarily for asthetics in hopes of having the smallest visible opening in the ceiling. The secondary reason was that it was insulated which would prevent me from losing too much cool/hot air when it wasn't running. Looks: The unit was pretty easy to install and did look nice when finished. The grate is similar to some of those shiny grids that cover flouresent lights, and you can only see the fans when standing right under them. I also decided to paint the joists that were visible white so they would blend in which I think helped. I've had louvered attic fans in the past, the slats always seemed to get dirty and you can plainly see the fan when it's running so thought this design was a decent compromise. Performance (sound): This thing is loud, I mean really loud especially for it's size. It's virtually impossible to talk when standing by it and don't expect to sleep with this thing running by any bedrooms (unless you like having sound that drowns out everything). Performance (cooling): I expected this fan to take a little longer to cool the house vs. my old standard attic fan since it's rated to move only about half the volume (700 cfm vs. 1350 cfm) but I think it took about 4 times longer and sometimes hardly accomplished the job at all. My house is just around 1100 sq ft so maybe this is undersized. You can feel air move from a single open window but open any more than that and I didn't notice hardly any air movement at all. What I really didn't like is that this has a 4 hr timer so it'll shut off in the middle of the night or sometimes before the house is sufficiently cooled down. What I liked about the fan in my old house is that I could run it all night and feel a breeze across my bed which I enjoy. Recommendation: I would not recommend buying this unit especially since it seems overpriced. It doesn't move enough air to cool a typical small house but it might be sufficient for something around 800 sq ft or less. The construction reminds me of one of those dual fans that are designed to place in a window which was just retrofitted to mount in an attic. The insulated top seals the hole in the ceiling when it's not running, but you are still going to need to insulate around this thing in the winter since the sides are totally uninsulated. What would I suggest: I would recommend going with a standard attic fan since there really isn't much more work involved in boxing in the unit (you have to do that in part with this one too). I have had two different types of standard attic fans and would suggest buying the one with the indirect motor which drives the fan blade by belt which cuts down on vibration and is much quieter. That's what I ended up doing here and am much happier. Hopefully this review will prevent others from installing this fan and losing time and money by having to replace it. May 17, 2009
Rated 1.0 out of 5.0 by too loud too much $ not enough air I don't know what I expected for twice the price, over a regular whole house fan, but this isn't it. Way too loud.... sounds a bit like the car stereo down the street. boom boom boom. Twice as much $ as a regular whole house fan. Hardly any air movement, even on high (which is too loud to stand). The only positive is its small size - remodeling and not having to cut trusses. June 22, 2008
Rated 1.0 out of 5.0 Surprised it's still being Sold I bought two of these for my 3400 square foot house 4 years ago and was stunned at the noise level. After I read the reviews back then, which complained about the noise, I thought "How bad could they really be?" Well, I found out the hard way. Even on the low speed setting these units make a ton of noise because instead of operating at a lower fan speed, what happens is one of the two fans is turned off. Really. So instead of two screaming fans, you have one. I couldn't tell the difference. Regardless, the noise was so bad that I removed and returned both to HD. I ordered fans from AirScape and find them an expensive but worthwhile investment which I'd do again and highly recommend. April 19, 2013
Rated 1.0 out of 5.0 by Stay Away From This We put in the first one last October, and it never worked. The door would stick down, and the fans would cut out intermittently if you did manage to get the door open. I received a new one through warranty, and it worked fine up until about a month ago. The door on this one won't go down! If I want to use it, I have to go into the attic and push the door down when it's finished. Other problems: it's very loud plus vibrates, and barely moves any air. We have a 1,900 sq ft house and you only notice it moving air if you only have one or two windows open. Even then, a regular plug in fan does a much better job and is a lot quieter. June 11, 2009
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