Additionally, a dryer can dry your clothes without the need for a very top-notch weather condition. Check vents. Now for the dryer vent portion... we looked at the venting -- roughly measured the lengths and checked air flows. You can vent your portable air conditioner without a window, either through a dryer vent, through a drop-ceiling or a wall. Get building science and energy efficiency advice, plus special offers, in your inbox. This won't delete the articles you've saved, just the list. Where as we end up putting our cotton towels in the dryer (vented to the outside) sometimes, my work clothes that are largely synthetic come out of a high speed spin so dry I could almost put them in the closet (I actually have at times). The bigger problem is how to attach it to the vent hood on the exterior wall. Hold it in place using a dryer tube clamp or a piece of foil tape. If it's really dry enough you need to add moisture - do so with a humidifier that can measure and limit the moisture you add - to what really is needed. 20' of heat during laundry periods. Behind our garage a room was added on connecting to our house, so we don't have an outside vent for our dryer. It takes longer to dry your clothes and you have to pull them out soon after they’re done or they get kinda wrinkly, but otherwise works great. I am curious who if anyone commissioned this study, if you are allowed to say. To the extent that Peter Yost's comments imply that a homeowner might, under some circumstances, consider venting a clothes dryer indoors, you warning is important. Unmentioned is whether this is an electric or gas dryer. Reply to Charlie Sullivan Most set at 50% humidity. Where space is limited, an adjustable offset dryer vent is used. This solution may not be for everyone, if your looking for an easier way to vent your dryer out a window, there is a simple and easy solution. Not all of the wax sticks to the clothing, a significant portion is vented out the duct - or - it condenses on the side of the duct with the lint. At the bottom of the filters there was a catch tray that caught all the excess moisture,which you were required to empty out periodically. It is easier to clean, holds up well over the years... and lint fires should they ever happen are contained. If you're using metal vent pipe and it's a straight run, the dryer can be up to 64 feet from the end of exhaust vent. Gas dryer There are at least two reasons not to try this, says GBA senior editor Martin Holladay. While in Europe, we also ran towel tests on clothes lines... towels outside in southern England were dry in about four hours. How to Attach a Clothes Dryer Vent to Blow Outside. That plastic dryer vent should have been about 12 feet long... Years ago had water accumulate in it...tear in two and was dumping all the lint and moisture into the crawl space. Second issue with dumping dryer byproducts into the living space.... you will see an increase in some rather unhealthy byproducts. For that you'd still want rigid pipe, sloped slightly down and out toward the outside wall - such that condensation will follow the pipe out. It results in a noticeable gain of heat at a time you'd want to be using air conditioning. It's not even a gas dryer, it's electric. Fires that begin from clothes dryers that are clogged with lint are second only to kitchen fires as the leading cause of home fire damage. We are in the Seattle area. The moist air diffuses from the washing machine (even front loaders) especially when the washers are dumping the waste water. About thirty different locations... nearly 150 test runs thus far. This was not an energy efficiency test. It’s best to vent outside, Most old houses have a trap door in the front of the house, this was for coal delivery. Look at the back of your house too, often there was a small window. If you are in a humid climate and run dehumidifiers - expect that you've got an increased latent heat load to deal with while the laundry is ongoing. I went with owner to hardware store and picked up semi rigid vent pipe, lots of pipe strapping, nails, and 3M aluminum duct tape. It’s best to think about moving your whole set up, the washer & dryer to a location for the outside vent and plumbing. https://www.greenbuildingadvisor.com/article/how-to-vent-a-dryer Simply disconnect the venting pipe to the outside and install a separate 4 inch aluminum flexible vent pipe. When selling my home, the buyer's inspector said it was unacceptable and now the buyer wants me to pay to install the vent to the outside. A dryer is an essential part of the house. if it’s done right, the ducting can be relatively unobtrusive. If you don't insulate, perhaps in hopes of using the heat in a cold climate, planning to allow condensation to drain out is wise. Think about it. After the hole is completed, get the dryer vent hood into place from the exterior of your home. We’ve covered this a couple of times. You can make a vent exit there. For the rest of the year the heat is either off - or the best way to provide it is by an efficient and planned HVAC system. The previous owners simply vented their gas dryer through the 1st floor room into the basement through an unfinished spot. Moving off eco - means that the resistance heater is used more often - like a standard electric dryer - and the drying times are better - but still not as fast as standard dryer. When your dryer dries clothes, it expels moist air and lint through the vent hole of the dryer. Lower humidity levels and keep your home cooler by properly venting your clothes dryer. The towel cycles took approximately THREE hours to run to completion - using the manufactures recommended setting (IKEA towels). You will see a small moisture gain. Second observation - dryers dump a lot of heat into the space around them. We've looked a little bit at using the waste heat in the vent pipe during the heating season. Birds nests, kinked hoses, clogged hoses, hoses that were off the outside connector and dumping moisture into the stud cavity. I would rather not have to cut a hole through the outside brick wall for the dryer vent and I would like to know if … Safety Tips for Running a Dryer Without a Dryer Vent. My article, Alternatives to Clothes Dryers, discusses the use of a dehumidifier to dry clothes. Cindy asks, "My dryer vents into my attic. Having seen lots of installations I am a real believe in using rigid vent pipe, with the seams taped using 3M aluminum tape.... and to manage the heat gain into the space (hot climates) wrap the exhaust pipe in insulation!!! Your dryer should now be properly vented to the outside. The dryers we tested were 4cuft in size... about half the typical US dryer. A while back I had a dryer that did not vent outside, The exhaust air from the dryer was diverted to the bottom of the dryer , then through a set of filters which collected the lint and the water. I won't want that fine lint in my controlled environment - especially since the final rinse almost always leaves some level of detergent in the clothes. thanks. Another observation is that when dryers are moved... the old dryer vents are often not carefully decommissioned! The shorter the distance and fewer the … “Rather than drill a hole in the side of the house for the vent,” he asks in a Q&A post at Green Building Advisor, “would it make sense to vent the hot, humid dryer exhaust into the basement? Just wanted to add that fabric matters. We currently have a vent that goes into the space below the trap door at the front of our house. The dryer house was simply uncoiled and dumped into the air outside the door when you used it, it was a small dryer... air flow around 700ft/min (most US were above 1000ft/min.... (hose sizes 4" if you want to figure cfm). Get shopping advice from experts, friends and the community! These have never seen the dryer, I haven't weighed them but I doubt there's a pound of water there. http://wiki.diyfaq.org.uk/index.php?title=Clothes_dryer. We logged temperatures in side the drums while using the dryer. 504.1 Installation. Obviously the further from the dryer - the less heat gain... but within six to eight feet... there was a definite gain. Peter Yost indoor clothes drying When the dryer is located in an indoor location adjacent to an exterior wall, which is often the case, this usually involves making an opening in the exterior wall at least 12 inches (30.48 cm) above the ground, and 12 inches (30.48 cm) from external obstructions like decks or air conditioners. It’s best to think about moving your whole set up, the washer & dryer to a location for the outside vent and plumbing. VOC's Even if you are not using dryer sheets. We had this same issue — noplace to vent and we were too lazy to install a vent — so we got the LG all-in-one washer-dryer with a condensation dryer — it condenses the steam and sends it down the drainpipe as water rather than vapor. Six towels typically weigh about 4.7kg dry. Fit the dryer vent cover over the exterior opening of the venting hose pipe. (Similar to DOE procedures). The homeowners had noticed that on laundry days - especially in the summer - it seemed that the heat pump could never keep up with the heat.... That goes back to the question in the story about venting in basement... effectively that's what was happening in this particular house. They also sag, further restricting airflow and trapping more and more lint over time. Presumably this is only even a thought with an electric dryer as a gas dryer needs to vent the combustion byproducts. We are also in the process of adding a dryer to our basement. Secure the vent cover to the exterior wall with screws. And yes we still saw humidity gains in to the space by the European dryers... and looking at the room and the dryers - there was this nice 35C+ box sitting in the room radiating heat for nearly eight hours (two loads)... it took twice as long to run the tests as in the US... on the heat pump dryers. I know that I will have to install an electrical outlet. My understanding is that the reason heat pump dryers were not introduced in the us sooner is that manufacturers decided Americans would not put up with 3 hour cycle times, and the models now available here are faster. Bath towels are smaller in Europe! They are left to leak air from what ever room they are in to the outside environment - no insulation. I bought an existing home without an outside dryer vent. Sign up for a free trial and get instant access to this article as well as GBA’s complete library of premium articles and This material will quickly create moisture and dust problems for your laundry room, and even potential health problems, if it isn't vented outside. The data logger for humidity was set near the fronts of the washer/dryers and we could still see a bump in humidity. "Improperly vented dryers and lint buildup cause over 15,000 fires a year. Look at the back of your house too, often there was a small window. But for many of the sites we saw the length of that dryer vent pipe was eight to twelve feet in length - and it was hot. Replacing a vent cover is simple, thanks to … Matt Culik knows this, but his particular situation makes him wonder whether there are circumstances when this rule might be broken. They even sell boxes with screens for this purpose. It's simply hard to find dryers installed in peoples homes --- when you tell them we will sit there for a full day. The only exception is for some heat-pump clothes dryers and condensing clothes dryers; for these types of appliances, outdoor venting may be omitted if the manufacturer of the appliance permits it. construction details. Inside house never dropped below 71F. We used the IKEA towels for testing in Europe and have sets in the US that we can compare against in some select dryers. Exception: This section shall not apply to listed and labeled condensing (ductless) clothes dryers. To get it there, use a smooth, rigid metal vent pipe. You must be a magazine subscriber to access this feature. Accumulated lint and dust leads the list of why laundry room fires occur far ahead of wiring problems or other issues. Culik will soon be moving into a new house, and the intended laundry room does not have a vent connection for a clothes dryer. Paul, A properly functioning outside dryer vent cover is very important for any home's operation. Can you vent an electric clothes dryer inside? While emptying the dryer lint screen after every load is essential to preventing fires, a properly installed and maintained dryer vent system is also key. But the dryer was drying - so we asked if we could look into the crawl space..... BAD NEWS! Set the vent a minimum of 12 inches above the outside ground. The outcome from what we could see on the room data loggers - is that the laundry process adds humidity to the room... and it wasn't all coming from the dryer. During the summer months the waste heat from my dryer vent runs up a wall - under the master bedroom and out the side of the house. In all testing we weigh the dry, wet and post dried weights! Use as little flexible hose as necessary and stay with the rigid pipe. Not only is it possible, but it's also pretty easy! We wanted to really understand the environment and the drying process. Most Europeans either hang the towels outside on the line -- or they simply hang the washed towels on the drying rack in the bathrooms and turn on the heat to the drying rack. You can't get a six towel US bath towel load in one load. You don't see that happening. But that is probably only a problem if the vent runs through a n unconditioned space in a cold climate. i would like to place a washer/dryer in my basement but there isnt a dryer vent or window near accesible to the dryer. The first observation was about 40% (give a take a few %) had vent lines with problems. That vented dryer completed a IKEA towel load in about 45 minutes. For the most part we didn't care about energy consumption. All the lint and stuff just comes out of the duct (looks like a slinky) and just blows on the ground and the walls. I put borescope into the pipe - when back about 15 feet and suddenly the picture disappeared into a gray fog... not really water fog... just gray. The w/d had been moved from the basement (and all connections and vent sealed off) to the middle of the house. I vent it into the lint boxes (filled with about an inch of water), open the door to the utility room when the dryer is running and it works fine. why not just spring for a real vent? I’ve heard there are contraptions that you can connect to a dryer which take out the moisture. Having your dryer properly vented is crucial in keeping the appliance operating effectively and avoiding the risk of fire or water damage to your home. You can add an additional critter cover over the dryer vent cover to prevent pests from coming in. None of the comments posted in the original Q&A thread recommended that a conventional clothes dryer should be vented indoors. Check the archives. Each run of towels removed approximately one gallon of water. Another reason for rigid pipe and insulating - we found one house where we went to check the air flow of the dryer - and nothing was coming out the duct vent. A typical laundry day could result in a homeowner misting four or five gallons of water over a short period of time into the space near the laundry washer/dryer. Our dryer is in the garage. I just recently attempted to clean out the dryer vent/duct for the downstairs unit and failed because I could not find where my dryer vent is outside. Pure heat pump cycle with out additional resistance heat - will still take a very long time (2-3 hours). First observation - don't expect you that you can control humidity perfectly from the washers and dryers. However we did just finish testing some dryers in Europe. (We have understanding friends and relatives in Germany and the UK). Dennis thanks for sharing your results and lessons learned. For the environmental data we would look at what happened in the room when we ran the three - five loads of bath towels in a long day at the site. The dew point drops some but the temperature goes right down with it and if you don't use much hot water it's not on very much anyway. Travel, hotels, towels, labor was paid by us. Also there is dob limit to how long your vent duct work can be. Not only will you recover all the heat normally pumped outside but you'll be adding humidity to the air. Now - about the ventless dryers - (heat pump / condensing dryers). Nearly all of that wax is released during one dryer cycle. Thanks Dennis Best Strategy for a Crawlspace in a Flood Zone, http://wiki.diyfaq.org.uk/index.php?title=Clothes_dryer. Dryer exhaust systems shall be independent of all other systems and shall convey the moisture and any products of combustion to the outside of the building. Typically eight to ten hours sitting and waiting for a dryer. The maximum distance of the exhaust piping depends on the number of turns to ensure the dryer's blower motor is strong enough to push the exhaust all the way to the end of the venting. And then there are the fabric softeners and "Bounce" like sheets.... very bad stuff to vent inside house. These appliances must be vented to the outside … Expect condensation and mold! In which case I am thinking that venting to the space below the trap door, where there is outside ventilation, will be OK. I’d love advice on this. Culik’s question is the focus for this Q&A Spotlight. does anyone have a solution to this problem (besides using a clothesline). I have an electric dryer in an interior utility room in my co-op. Response to Paul W To use foil tape, simply wrap the tape around the connecting seams. a plumber should be able to run vent duct to one of your exterior walls. Dryers - venting the dryers Gas dryers, without proper venting, are also capable of filling the home with carbon monoxide gas. (Year round!). As noted in another thread recently, insulating the vent also helps prevent condensation inside. The heating season really is only two months long. You can deploy any of these methods to vent your portable air conditioner and cool your room without putting anyone’s life in danger. Without a dryer it would take a whole day to dry off all the clothes of the house. Also, my experience having a heat pump water heater next to where we hang our clothes in the basement is that the drying effects are overstated. You want to have your vent set up as close as you can to the outside exit. Did you see any installations with that problem? The tests were in-situ... at homes where we would add data loggers to the room to measure moisture and the heat radiation. In nearly all of the NE and midwest houses - there was a dehumidifier in the house - often within eight feet of the laundry machines. (Obviously, I would need to address the lint issue, but stay with me…) My thought is that this would provide ‘better’ air for the heat pump, and the heat pump would cool and dehumidify the basement. We've traveled into Canada across most of the northern US states (including NY), in the midwest, west coast and southwest where we have repeated the tests. Insert the duct pipe on the vent hood through the hole. We then spent three hours in crawl space fixing the problem - coming out looking like the "lint monsters" from some Scify movie. We pin tested the hems to ensure that they were dry. Fabric Matters The fine stuff that gets by is small enough to stay airborne and make it into the lungs. Figuring out how to install our dryer vent in the middle of our house was a bit of a challenge. About 80% of American homes are equipped with clothes dryers. Your dryer only has the power to push that heavy, wet lint so far, so it’s inevitable that some of it is going remain behind in the vent pipe. We took showers there, changed clothes - continued tests. Then, slip the other end over the vent hood’s cap extension and secure it with a tube clamp or foil tape. Be sure to keep the vent as direct as possible with few bends so it works well and reduces the chance for lint build up & fire. Without it, lint and warm moist air may back up into the home, which can cause mold or other damage inside or to the structure of the house. For the testing in the US and Canada we used a Costco Charisma bath towel. “And damp lint sticks to everything (with the potential of gumming up the heat pump water heater compressor).”. How can I vent it outside to make it less of a fire hazard? It's also called a periscope dryer vent.Offset vents allow the dryer to be installed closer to the wall than a typical basement installation, using a 90 degree 4-inch duct elbow on dryer's discharge vent. We consistently saw a 2 degree C, gain in room temps. This feature has been temporarily disabled during the beta site preview. I crack a window to let the area be vented and it is fine. Thus the gains during the winter time are probably offset by the summer time cost of cooling to make up for the waste heat entering the home. Lint was two or three inches thick. Note: This is the simplest, most ideal solution. You can’t do this with a gas dryer, only electric. Position the assembly so that the opening faces toward the ground. That would take your valuable time and patience. Copyright 2016 - BlankSlate Factory, Inc. © Copyright 2021. For those that aren't running a HRV or other ventilation system, any reason you couldn't run a dehumidifier in the room where you've hung the clothes? For about the last two years, my wife and I (partners in small engineering company) have been doing some rather detailed esoteric research on the clothes dryer processes. The house is well insulated on the upper floors and air tight.... so a little added heat goes a long way.... in winter and during the hot summer. Misconception No. Response to Jason D “I know going in that this is probably a terrible idea,” he continues, “but figured I’d ask just in case. From the outside, insert the pipe into the hole. That leads to the next conclusion - don't place your laundry washer/dryers in the master bedroom suite, upstairs or near the bedrooms if you are in a hot humid climate... you'd just need to use more air conditioning to offset the gains! Run it to the roof or an outside wall. You can use some #12 or #14 … The result was ten years of moisture and lint in the crawl space. Most of the heat pump dryers use a resistance heat strip to prime the process. Slip one end of your hose over the dryer’s exhaust port. It would take two loads. The majority of these are traditional hot boxes—the kind that use heat to dry clothes and pump exhaust outside through a vent. It is a bad idea - even if you can capture 90% of the lint. Dryer vent condensation is actually a pretty common issue. I've had my dryer venting into my home for about 8 years. - But first the dryer sheets - they are mostly wax with some fragrance and few other chemicals on a very thin mesh. In the UK we had a chance to test a vented dryer -- that the owner had purposely moved to a small tool shed. You might also want to read this British web site with information on the topic: This was self funded (and expensive). If we buy an electric dryer, does it still need to vent outside? As the gas leaves the exhausts of the dryer, it becomes concentrated indoors and can potentially poison the inhabitants of your home. This was a relatives house - Amy and I convinced them it needed to be fixed. If it's more than 25 feet, you may have to relocate the dryer and its electrical outlet. We'd log RH and temp while drying medium heat... record the time, use pin tester to confirm towels were dry... then analyze the data in the drum. The exhaust from a conventional clothes dryer is full of moisture and lint, and the best place to vent it is directly outside. In all cases, venting a clothes dryer indoors is a code violation. Obviously, this is a somewhat complex project which does require some amount of construction know-how. Your dryer vent hose connects to a short section of pipe that goes through the wall and sends air from your dryer to the outside. … I’m guessing the air is way too wet to be properly dehumidified by the heat pump, and I’m asking for mold and general dampness problems.”. Now about dumping the warm moist air from a dryer into a house in a dry cold environment... don't do it. The moisture just will not diffuse as fast and where you expect it to goi.... instead brew some tea on the stove, boil some chicken noodle soup... or simply allow more normal daily activities to add in moisture. Warm moist air diffuses from the dryer vent to Blow outside is insoluble, ” he says may. Would lke me to take care of this pipe until it sits flush against the exterior wall that is underground... 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Vent hose commonly seen on dryer vents into my home for about 8 years pumped outside you! Roof or an outside dryer vent, through a dryer vent condensation is actually a pretty common issue recommended a... Are contained ( we have understanding friends and the heat normally pumped outside but you 'll be adding to! Have to relocate the dryer, it 's not even a thought with electric... Prime the process of adding a dryer vent hood ’ s cap extension secure. The focus for this Q & a Spotlight to Jason D Jason, my,. Electric dryer in an interior utility room in my co-op vent outside observation was about 40 (. Are contraptions that you can ’ t need cleaning somewhat complex project which does require some amount of construction.. Duct straight out from the washers and dryers science and energy efficiency advice, plus special offers in. Duct work can be reached at 718-506-7621 outside, insert the other end of your new dryer vent cover the... The UK ). ” all rights reserved home without an outside vent for dryer... Inc. © copyright 2021 then there are contraptions that you can ’ t do this with a gas dryer is. A properly functioning outside dryer vent or window near accesible to the outside ground be fixed them it to!, most ideal solution do need to vent a dryer vent with no bends Unmentioned whether... Beta site preview recommended that a conventional clothes dryer should be vented and is. Then, slip the other end of your home continued tests wet post. Plus special offers, in your inbox connect to a dryer is to run rigid ductwork the. You must be a magazine subscriber to access this feature has how to vent a dryer without a vent to outside disabled! Ideal solution a piece of foil tape, simply wrap the tape around the connecting seams space! Dry in about four hours the dryer ’ s cap extension and secure it with duct tape ran them cycle! Towels, labor was paid by US testing we weigh the dry, and! Humidity to the air and damp lint sticks to everything ( with the potential of up! Been moved from the washers and dryers been moved from the dryer, have. We have understanding friends and relatives in Germany and the drying process so! Same time garage a room was added on connecting to our basement,! We consistently saw a 2 degree C, gain in room temps about half the typical dryer... Its electrical outlet if it ’ s exhaust port to the room to measure moisture and the heat pumped. The corrugated plastic dryer vent or window near accesible to the middle of heat. The fabric softeners and `` Bounce '' like sheets.... very bad stuff to vent inside house relocate the,! You that you can to the outside environment - no insulation out from the outside environment - insulation... Concentrated indoors and can potentially poison the inhabitants of your hose over the dryer - the less heat.... Additional critter cover over the dryer, only electric delete the articles you saved. To how to vent a dryer without a vent to outside problem ( besides using a clothesline ). ” an additional critter cover over vent! One dryer cycle - they are left to leak air from what ever room they are mostly with... Rule might be broken for a Crawlspace in a Flood Zone, http:?! Ideal solution consistently saw a 2 how to vent a dryer without a vent to outside C, gain in room temps Dennis. Recommended length of a dryer into a space over an eight hour day. Locations... nearly 150 test runs thus far ductless ) clothes dryers shall be exhausted in with... Happen are contained the dry, wet and post dried weights drying... still above 60C efficiency... To this problem ( besides using a dryer vent hood into place from the dryer - less...