I was wondering what the outlet duct diameter is? I feel it safe to assume 4in. but I would like to know the exact measurement.
840010
The outlet accepts 4 inch standard duct pipe. The outlet is oval in shape so it can be installed in limited space. Most flexible ducting slides right on, I was able to get rigid (aluminum) dryer vent pipe on it as well. I used metal duct tape to seal the duct connection.
840011
I know we used 4" duct on all the exhaust fans. Some of them were oval and some were round, so I'm not entirely sure about this one. However, it was close enough that we could use flex duct without an adapter.
693148
Although the initial exhaust from the unit is 4", it can be reduced to 3" (Rinnai sells various termination exhaust adapter ends, depending on your house. We bought a right angle one that terminates at 3"). Although I am not a professional, I assume that if your exhaust vent pipe is at least 3" it is fine. If less, you should check with the company.
1916706
I hired an electrician to install it for us, but the first answer is correct: it's about 4" diameter. We bought this to replace the typical builder's square light fan that was loud and obnoxiously plastic.You will like this fan. It's nice to look at and it's quiet.
194331
The ouptut duct for this model is 4" in diameter. If you are replacing an existing exhaust fan, you will probably have a 3" plastic flex duct vented directly into your attic which is not code compliant. Correct way is to replace the 3" plastic duct with a 4" insulated duct and vent to the outside directly.If you use the existing 3" duct, you will have to purchase a 4" to 3" adaptor.Hope this helps.AMGContracting
1366687
So sorry for the delay. Measuring from the surface where the pump sits to the point where the threads begin for the discharge pipe is indeed less than 4". Hopefully you will have room!
328311
This unit is rated at .8 sones. The sone rating remains the same whether you use a 3" or a 4" duct.
442630
It's a perfect fit to slide inside 4" metal ducting. Tape it up and plug it in and you're set! Air flow. Good question!
1020447
Hello David, I measured and it is exactly 10" in diameter. It should work for you. Mine is installed but not hooked into power yet. Renovating and old house. I think it is quite loud just from the decibel listing. My electrician will put in a switch to allow me to use it at half-speed or full-speed. Hope this helps.
1629652
The 4" duct size will not compromise the CFM rating as long as it is a short run, approximately 10' or less. For longer runs it is recommended to use the 6" duct size to maintain proper air flow and allow the motor to achieve the 110 CFM.
330012
it comes with extendable plastic ducting don't remember how long ( think 3-4 feet ) so i would hang on until i get it see if can do with that one, then measure how much you need if any.
1618517
I was using a 3" ABS pipe with a Fernco adapter. The adapter had a 1/4" wall thickness which fit snugly inside the 4" ducting on the ventilator. A Schedule 40 4" PVC pipe at 4 1/2" OD will be too large, but it might fit inside the PVC pipe.
1350546
Good Evening, Thanks for your interest. 8" vents are recommended, 8" ducting and vents. Hopefully, that assists you. Also, feel free to email us if you need equipment, nutrients, so on... We can offer you additional discounts and free shipping. Have a great day.
225821
The unit has a 6" duct opening, but I have an adapter/reducer to a 4" duct line.
1104626
4 inches center to center for inlet to outlet 6 inches overall, sorry for being so late.
648287
According to the installation instructions for the fan, it directs to install a circular duct (4 inches) to the adapter.
2047264
Sorry for not responding sooner. I'm measuring the diameter and I get .040". I hope this helps.
1231166
Not sure what size outlet is on a 4100 series. The inlet clamp on the dust bag measures 2-1/2" +- at rest, and expands to about 2-3/4" when opened up.