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Question about Whirlpool Dryer venting

I've bought a new house and the dryer venting is already installed. However, upon inspection I've found there are 6 elbows between dryer hook up and vent outside and it starts at 4" and goes down to 3". This doesn't seem quite right. My questions; Is it safe to reduce to 3" on the venting? How many elbows (90 degree) can the vent pipe have in order to be safe and what is the maximum length of venting pipe that can be used between the dryer and the vent outside? Is there I place on the net where I can print specks for proper installation of this machine? Thank you so much!

Posted by DaleJrFan on

  • Anonymous Mar 29, 2014

    how long can a dryer vent be with two elbows

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Greg Stokes

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  • Greg Stokes
    Greg Stokes Nov 07, 2007

    Hi Hendricks Racing fan,



    Your Contractor is way off base with Dryer venting. 6 elbows is crazy bad. Dropping to 3 inch might work for Air condtioning but is not good for Dryers. Look at the URL I provided above.

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Why we did not get venting elbow when we we purchased. We recived a straight pipe but no elbow & this needs to go straight out the wall not connected to another water heater venting.


I gather that you are talking about the installation of a water heater? If it was installed by a licensed installer and a building permit was purchased (it has to be ) then it would not have passed inspection if it was not installed right. If you are worried about it (and you should be) get a permit now and have it inspected.

Mar 04, 2017 | Dryers

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Powers on, then immediately shuts off. More detailed in comments below This is too aggravating!!!!!!! Characters characters


Hello Kathy: All clothes dryers work on the same basic principle...
1.) Air Flow
2.) Heat
3.) Rotation

Your problem may lie in your duct work configuration and how the exhaust gases are vented; the mere fact that you had blockage could have overheated the dryer's high limit thermostat and/or the thermal fuse...BUT, before I go any further...I need to talk to you about safety!

Gas dryers give off combustion gases that are toxic and DEADLY; DO NOT VENT YOUR DRYER UNDER YOUR HOUSE SLAB to the outside! Especially that you report that it gets WET inside that underground slab- it's against NFPA fire codes (municipal and state building codes, as well) to do that. If that slab ever collapses partially or fully, you'll have no way of knowing it and the toxic gases will back-up into your house.

The safer venting method should be done with 4 inch solid wall vent pipe; and should be vented directly outside. Maximum duct work (straight run of ducting without the use of any elbows) for your model gas dryer, is 65 feet.

If you are using 1- 90 degree, the total length reduces to 55 feet, including the elbow in that measurement

The use of 2- 90 degree elbows, 47 feet; for 3- 90 degree elbows, 36 feet, and for 4- 90 degree elbows, 28 feet- maximum length.

These are per your manufacturer's installation specifications.

Although you should not use more than 4- 90 degree elbows in your configuration, in the event you do, you would deduct 6 feet for each additional elbow used. You want to make sure that you can visibly see the vent pipe (to visually inspect it for defects or for ease of access to clean and service)- and never keep flammables of sorts near the vent pipe due to the heat that they radiate.

I choose solid vent pipe over foil or plastic (in my home, rental properties, and when I do installs) because lint does have a tendency to burn inside the duct work...which could lead to perforation and/or fire. Plus many manufacturers recommend solid vent pipe over other types; and I do not recommend using screws to connect solid vent pipe together with, since lint can catch on the exposed screw that protrudes into the duct. Use a combination of, heat rated duct tape and dryer vent clamps.

Some installers or readers of this will think that this is excessive, costly, and not necessary; through my life's experiences, I have seen unfortunate yet avoidable tragedies. (Don't forget to check & clean your dryer ducts at least once-a-year!- I do mine at the start and end of DST- the same day we change the clocks and the batteries on our smoke and carbon monoxide detector alarms.)

Now, concerning the rest of the troubleshooting process, are you getting any trouble code errors on the electronic panel? If so, what are they?

You have several choices, you can disconnect and remove the high limit thermostat and thermal fuse and check them for continuity or call tech support using their smart diagnosis procedures as outlined on page 35 of you owner's manual. Or you can disconnect the dryer at it's power source (outlet or circuit breaker) and wait a half hour; see if the electronic computer panel resets. Then try running the dryer.

Please let me know how you made out or if you need more help.

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1 Answer

How do i side vent my maytag atlantis electric dryer?


Attached is a link to a diagram of your dryer.

http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5170653

You would have to remove the back panel. Remove the existing vent pipe, install a 90 deg elbow of the same size diameter. Then cut a hole in the right or left side of the dryer cabinet that would line up with the new elbow.
Check the side cabnet of your dryer, it appears on the diagram that there may be a 4" knock out for a side exit vent.
Good luck, let me know.
Regards,

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you will go to any hardware or home depot and purchase a metal ductwork elbow. that will direct the vent down 90 degrees

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1 Answer

Length of dryer exhaust


you can try but alot of elbows.it should work but it may start blowing your thermal fuse.they sell vent kits that you just add water to the kit with vent inside.good luck.

Mar 11, 2009 | Dryers

1 Answer

Kenmore Elite Heavy Duty Dryer 11063012101 Takes Forever to Dry


I think your vent has lint in the line between the wall and the outside of your house not allowing the moisture to get out

FIX

1 when the dryer is running go outside and observe the vent to see if hot air is coming out



2 Turn dryer off, disconnect electric from wall

3 pull dryer out from wall

4 take a nut driver or screw and remove the clamp that attaches the flex vent pipe to the wall

4 Also remove the flex pipe from the dryer

5 Inspect inside vent connection inside dryer for any trapped lint

6 inspect inside flex line for any lint

7 Look inside wall vent for lint you can also reach in with your hand to feel for lint

8 If you have a leaf blower or can borrow one(electric is best) from your neighbor put the snout of the blower into the vent going into the wall seal the area between the snout and the vent pipe at the wall ( i use duct tape you can use wash clothes rags etc

9 start blower and blow any lint in the line out through outside THIS WILL CLEAR THE LINT

10 Reattach the flex to the wall vent and dryer , plug in. run a load and you should be back in business

Good Luck





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10 feet is the max .remember 1 elbow counts for 3 feet .

Check your installation instructions or go to a appliance store and find the installation manuel to check this

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"AF" is a restricted air flow condition. You say you've only had your dryer for 3 months, but have you ever cleaned the ducting? You need to check the lint screen after every load, AND you need to perform routine cleaning of the dryer venting (inside the dryer, as well as the vent line from the dryer to where it exits the house) about every three months. If left in this condition, the dryer heating circuitry will eventually failed and/or you could cause a fire hazard. An easy way to check to see if you have a clog somewhere is to remove the dryer vent hose from the back of the dryer. Run the dryer to see if you have air flow coming from the back of the unit. The air should be about 140 degrees F and forceful. Check to see if the error comes back. If everything runs fine, then you know the problem exists in the vent line between the dryer and where it exits the house. If you still have problems, you will need to unplug the dryer, remove the back panel and inspect the interior for clogs. At least you have a dryer that warns you when the air flow become restricted or blocked. Most dryers will continue to run until they overheat or fail. I hope this information is helpful. Post back with your comments and let me know.

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