How Does a Whole Home Dehumidifier Work? A Comprehensive Indoor Air Quality Strategy.
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- čas přidán 30. 06. 2024
- In the Smith House Company's Bellville Farmhouse, Jordan runs through the comprehensive indoor air quality (IAQ) strategy used to bring in fresh, filtered, dehumidified air.
The myth that buildings need to breathe is slowly losing traction in the building community. And that's a good thing. Leaky houses don't last as long, aren't as healthy, and are more expensive to own. However, it is important to remember that the people living in the buildings very much need to breath, and its best if they can breath fresh, unpolluted air that is at a comfortable temperature and humidity.
Using Aprilaire 1870 Dehumidifiers with fresh air intakes and large media filters, the Bellville Farmhouse filters, dehumidifies and conditions the indoor air and is also able to bring in fresh air as required.
www.aprilaire.com/
Good to hear from you. I would very much like to see videos on the other subjects you mentioned.
Jordan - Definitely interested in hearing your take on flex ducts. Love your content and wish you would publish more often. Risinger is great but there’s certainly multiple ways to accomplish a well built house and I appreciate your perspective.
Glad to hear from you. Educational, as always.
I just love your videos and your knowledge on science and overall wisdom on buildings
Thanks for the info! 😃👍🏻👊🏻
Fantastic video. Thank you.
First, I promise I'm not being rude and I think you do a great job of explaining things, just maybe some over explaining of different topics, kinda get off track. Otherwise I like listening to you,great voice and easy on the eyes.
I understand and have understood the basic concept of dehumidification. Humid air in, machine removes moisture, drier air comes out. How does the unit itself work? Compressor? Like a standard room dehumidifier except connected to your ducts? Air passes across a cold coil,condensation drips into a pan and goes down a drain?
All good and thank you for taking so much time explaining everything. Did I mention you look good? 😂. Seem like a nice guy and fun!
I wish you could have showed us how all this looks when its connected and gave us a walk through to get aa better idea of all the great knowledge your spreading.
Yeah I'd love to know why you prefer flex duct (for this project? And others? When would you prefer something else?)
Glad to see you post again, I was getting a bit concerned. Been so busy haven't had a chance to watch till now.
Good video. I can think of a few reasons to use flex rather than solid plenum. Sort runs with awkward angles, quieter (this can be a big reason), in some places being able to run a larger diameter than you could with solid. What are your reasons.
Take care and be safe.
Very informative sir. Good job!
I see lots of videos about dehum’s but very few regarding the controller. Especially in this scenario where the controller manages fresh air supply. And I believe you said there was a Y in that supply?
welcome back Jordan, have not seen you guys for a while, What happen to the shed project?
Yea, was wondering about the shed too.
Thanks!!!! So informative ❤
Glad it was helpful!
As far as I understand, the smaller particles which you don't filter with a standard filter can enter your lungs better. That's why you should filter those particles, too.
Hey why do you like it and tell us why! (Flex duct) And what is your thought on HighVelocity AC systems vs MultiSplit? (someone said that Multisplits leak condensate when drain clogs...I mean is that true?)
Yes, i'm really interested in high velocity AC. It seems like such a neat idea, but I've never seen it used in person. I suspect that switching to it would let me raise the ugly channel in my basement ceiling, but the other option I have is to run ducting in the attic. Which I need to do something about... So, radiant barrier vs spray foam?
In southern az flex duct is the best imo with an aeroseal or even sheetmetal ducting with an aeroseal and obd registers , especially with a 2 stage or inverter
Hey, I have a mobile home, & a lot of what you & Matt does is really good, for Large, Foundation based homes, I have a 900Sq. Ft. 2 part home, but I may need to replace my HVAC unit - heat exchanger is cracked - but, before I do, I want to get a CO meter to see of there is any leaking. $5-7K is not just a dime to drop... sectional homes also have other issues to deal with. Or, should I be watching a different channel. Love you & Matt so far :-)
Do you like it because flex duct is easier to install or because it's just better? I used to work with guys putting pools in. I used the hard PVC and they used the flex. We came back for more issues with the flex. Don't know why but we did.
The flex ducting just looks cheap to me. No meat to it at all.
liking this before I watch it.
How do we go about having you design and install our new build system?
I’d love to learn why you love flexduct? It would be a great video topic
I got a manual j performed and they said to use a 2.5 ton heat pump for my house. However I already have a 3.5 ton heat pump that has spray foam on the attic and blown insulation on the walls. Is it ok to leave the 3.5 ton and get a whole house dehumidifier? Thanks
In the absence of an ERV, how do you prefer to duct the fresh air inlet to your hvac system if using a whole house dehumidifier? I’m installing one soon and the dehumidifier I bought has a fresh air intake built into it. My concern is that if all the fresh air comes through the dehumidifier, how will I get fresh air when the dehumidifier is not running? Should I also “y”over to the return side of the unit?
Thats a great question im in the same predicament. How did you go about it?
I would like to know about the ducts and insulation. Does the dehumidifier require it's own dedicated ducts or does is share ducts with the AC?
Shares with existing duct, but has to have dampers on the collers.
Why did you spray foam up to the radiant barrier ? Can’t you install some poly carb baffles, and spray up to them ? Flex duct is quieter I hear.....other than that, I have heard it’s harder to clean flex duct when running cleaning equipment through it. I would guess flex duct could last for 75-100 years before the plastic /Mylar starts to deteriorate ? Vs rigid metal duct that could last indefinitely I guess. Then there is the cost of material / labor to install factor. Flex is cheaper ....I have flex duct in my house ....I’m comfortable 😁
Why not just use a standalone dehumidifier?
Jordan do you have any recommendations for someone with your knowledge in Gulf Shores Alabama? I have all of what you are showing but it doesn’t work. I really need someone that is an expert in this
Did you tell us how it's ducted on the return side? I have an 1850 in my basement not ducted and it's still 60% plus in the first floor and hovers around 50 in the basement with the unit. Set point is 47 on the unit. 2007 house and St Louis MO.
Is your duct work in the basement?
Can an ERV cover de-humidification needs?
What brand of filter was that?
What happened to sound proofing part 5?
Tell us why you still stuck spray on the radiant barrier. Ill feel better becuase I did the same thing haha
If you had put baffle vents over your radiant barrier, then spray foamed over that, you would have gotten the best of both worlds.
What about cold and hot climates? Like in Ohio. We are thinking about using Radiant heat to prevent the air drying out.
In dry climates, I use steam generating humidifiers. I like this one: amzn.to/3lt72fO
(FYI, I do get paid if you buy through the link, but this is the exact model I put in my homes.)
Too much detail..... I LOVE IT!
Yes explain why on both
Can you do a video about adding humidity and why you would? I live in Lubbock and 40% humidity feels misserable because of being so acclimated to the 5-15% humidity. I moved to Dallas last year and had to move back because of the humidity. Literally wound up in the hospital thinking I was having a heart attack because of the pressure and thickness of the air and couldn't breath. I can't imagine anyone here asking for more humidity in their home.
Is that closed cell or open cell?
Did I hear that correctly? Ach60 not 50?
No ERV?
How does a dehumidifier cool the air? They create heat as a byproduct of dehumidifying.
Risinger will contradict himself based on whoever is paying him. Watching him is just a infomercial, not as educational or honest as this was. Thank you.
Wow you have a wealth of information to share but it’s coming out like someone puking 🤮- stay on point.
Yes...plus one on "stick to the point, please!"
Who is Allison Bells??
Edited self answer: Allison Bailes, Green Building Advisor
Why you use flex duct?
Hey I want to see a video
Whats wrong with flex duct?
I'm a fan of unvented roof assemblies 🤷♂️
Do you mean a vent roof ???or a vented attic ....its an important distinction .....A vented roof would have an airspace (under standing seam metal typically) and a vented attic would have air baffles on the inside of the attic with insulation underneath ( if you choose to have a conditioned attic)....just sayin ....
Any difference between aprilaire and ultra aire? Other than price?
Probably just another competitor in the Whole House Dehu industry.
Risinger likes Ultra Aire; Jordan knows there are other good dehus out there, so I he goes for Aprilaire.
Just a good way to diversify himself from Risinger and offering good info and products.
Specs on ultra air is better in every way even on warranty.
I don't understand the boners for very expensive installed dehumidifiers. They do exactly the same thing as a sub $200 portable unit, which can usually be plumbed into a drain. I have a small one running in an extra bedroom where I don't usually go and can't hear it...this equalizes humidity throughout the whole house. It doesn't need to be ducted, humidity doesn't work like that. My $139 dehumidifier is currently keeping my house at 37% - I'm in North Carolina by a lake and outside right now it's around 97% humidity. It drains itself. No maintenance, just sits there and hums. My house isn't sealed that great either. If I turn off the dehumidifier and just use the A/C it will hover around 65% humidity.
If you want to dump the heat load outside, just use a small window air conditioner for $99, let it run all the time. It's every bit as efficient as any dehumidifier for the same purpose.
I can get fresh air from outside too, it's called opening the window. ;)
How could spending an extra 4 digits give me any benefit? I say this as somebody who has been in charge of the air quality management of multiple commercial grade many thousand square foot facilities that need serious humidity control...those places got $1500 dehumidifiers...my house...never...
What brand of dehumidifier?
A whole house dehumidifier is about 30% more efficient per watt and allows you to duct zones for drying the air in comparison to waiting for the air to mix enough through osmosis. That being said, you are correct, its more efficient and easier to use a unit like that for a smaller home. Larger homes really do benefit from the ducting and put less load on the HVAC system by making warmer air feel "cooler" because of lower relative humidity
@@RoninCC I typically use a 5000btu window unit for this. It is not "more efficient" when your dehumidifier dumps all that heat back into the air stream. My unit creates air conditioning AT THE SAME TIME as dehumidification! All of the hot air gets dumped outside instead of in the house. That makes it 100% *MORE* efficient!
And who said anything about a small house? I have a 4 bedroom home on a humid lake. There is absolutely no issue whatsoever with humidity distribution in my house, the natural osmosis is nearly instant. WTF would I need zones for? I want the humidity in my house to be the same in every room! It is currently approximately 80 degrees, dark, and 95% humidity outside. My house is at 72 degrees, 51% in every room.
You have no idea what you are talking about. This is just another dumb thing rich people think they need because somebody else told them they do and they have no idea how it works. The "other guy" Jordan used to work for is very guilty of this and constantly made fun of on the internet, he has no idea what ROI means.
@@ryanroberts1104I’m thinking about buying one for my shop (they have one on casters) that won’t be ducted, just to keep from replacing the shItty plastic Chinese made crap every year or three.
I think a dehumidifier combined with a fan at night would be nice.
Why not just install a Ultra-Aire, that solo device would give you both dehumidification and fresh intake air.
Hey why did you do that?
Ha! I guess I get what I asked for...
hey, why'd you do that?!
Why did do all that? Please make videos of it all.
Dehumidifiers are a waste of money, using up to 10kwh a day. Size and spec your AC correctly and you don't need a dehu. I'm in DFW and my old 0.46 shr on/off single speed ac maintains 38-40 percent humidity
Yea, sure, if your climate doesn't change over 365 days of the year. Years where Texas has 100 days over 100°, you've gotta rock a lot of AC. Spring/fall days where highs are in the 70s or 80s, your AC will not run as much. The only viable alternative is a variable speed compressor.
@@jakeanator2004 they cost more to buy and cost more to replace/repair.
No, thanks.
Also if you have a spray foam home the single stage just won’t cut it. I’ve got an inverter heat pump and I’m still at 55% RH so your comment makes no sense in this application.
@@chaseself9151 55% is not anything to be proud of. My house never sees above 44 and I'm using a 20 yr old unit
It’s because your house is poorly insulated if you pay attention to the video he references how tight the house is as is mine with closed cell spray foam. If my house had blown cellulose and bat in the walls as I’m sure yours does my RH would be much lower as is yours. The unit runs longer in a higher stage it pulls more humidity.
I don’t want to see any more videos until you get a g dang hair cut