what is the actual hole opening size for the Solar Attic Fan 20-watt
1969110
Hi Jeff, I have not installed the fan yet so I couldn't tell u the exact size of the hole needed. Im waiting for the cooler weather to do the install. Sorry I couldn't be more helpful.
1983217
Also, the 20" is the diameter of the fan blade. All fans are measured this way.
1589605
I wish I brought my measuring tape home with me today but I'd say the fan itself is approximately 20 inches in diameter.
51429
I think it is 4 inches. I installed in the attic about 2 years ago. The flexible duct it connected to was already there and it was the same size. So, it must be a standard for this type of fan.
1099237
It says in the specs that the 24" fan needs a rough opening of 26" X 28". However when I received my fan the square measurement was 28" X 28 1/2". So go figure.
1532769
The flange on top and bottom of the fan both have two tapered sizes (outside diameters): 3 7/8" and 4 7/8". That means there is 1/16" gap all around to seal. I wish the tolerance was tighter, but this is what you get.
225820
Not exactly. The hole on the fan is 6". With that said I put a new 6" duct from the fan to the hole in the roof. The hole in the roof is a 4" hole. I just put a 6" to 4" transition and the fan runs fine. It is super quiet and gets plenty of flow.
2253423
For flat roofs having your roofer build up a curb and using one of the Natural Light curb mount solar attic fans is recommended. Examples of these models on Amazon may be found under ASIN #'s B00527IJKY and B0057XF1G8. Also available in 10, 20,30 and 50-watt sizes in Gray, Black or Bronze Powder-coat finishes.
105990
The measurements for the fan blade holes are: A - fan blade outer holes 3-15/16 in. width; B - fan blade outer hole to center hole 2-5/8 in. width; C - fan motor holes 2-1/16 in. width. Hole spacing diagram:http://www.homedepot.com/catalog/pdfImages/e7/e7d716a7-df33-46de-9e6e-3044db3b2424.pdfInstallation Guide:http://www.homedepot.com/catalog/pdfImages/e8/e8a9be1c-648f-4c6b-a5c1-3a3a4cd6da10.pdf
690508
The Natural Light 10-watt Solar Attic Fan is available in Black. On Amazon the current product ASIN # is B0094PMDCU.With regards.
646529
The two outer holes on the fan blade side are both called A. The one in the middle is B. The two holes that attach to the fan housing are both C. A to A = 3 and 7/16. B to A = 2 and 9/16. C to C = 1.5 inch and the length is about 5 and 1/8 inches overall. Hope this helps
1840975
Greg, I bought it just in case I lost a bulb assy on my Christmas Village houses. I haven't measured the size hole but I would guess at about .75-1.00" My village isn't up yet so I can't look.
923374
There very small I'd say 1/16in holes. I didn't have great luck with it so I just use tinfoil and poke holes in it and place it on top of heat source. Works good!
735843
I don't know the exact answer, but it did fit perfectly on my Hunter Fan. I don't want to uninstall it to measure it, but it seemed like a very universal size. I hope that helps. It does work well now that it is in place.
1599495
I went with the 4"x20' for my 16' wide solar. It was Hydro tools item 51204. It works fine for me.
728523
I tried to measure just the fan blade assembly, like the one pictured, the outer diameter was right at 161/2" hope that helps.
1679864
This fan is 16 inches in diameter and works much better stock electric fan. Good investment.