it is so nice to see somebody that knows wtf is going on. If this were a foam salesman, he would have told you any house without foam is too leaky. I actually test homes, and you are RIGHT! Alot of homes within the last decade are about right or too tight. thnks for the vid!
The always-open feature was designed by the inventor to provide the needed intake air when other things in the house eject air. Bath fans, kitchen fans, central vac units, fireplaces, furnaces, water heaters, etc. Without this protection, you can have backdrafting of fumes. Sounds like the automated damper you mention would have to be pretty smart to know when these random events are happening.
I was just on a job where the flue pipe on the furnace and hot water tank was more dust than rust. It was in a partitioned basement and I happened to notice an exhaust fan running in the furnace room section. It is my guess the exhaust fan is having a tug-o-war in the chimney. I called the contractor who lived there prior at an earlier time to shut it off. He agreed. I will follow up on the occupants for safety reasons. It also rotted out the inducer housing. He said he installed it to remove cat orders. Unexpected things get done by home improvement amateurs. I told him to disconnect the wiring and leave the exhaust opening to let the furnace exhaust the room.
No offense taken at all. When I see expert comments like yours, I always click to see the channel. I try to encourage those that seem to know stuff to make videos. We'd love to see a quick video of your system or the system if you install it later.
Through the band board or rim joist just above the top of the foundation. You will need a reciprocating saw and possibly a hammer drill if the exterior of the house is masonry.
Purchase a air to air exchanger ties into cold air return on furnace has a adjustable timer for cycle time do it your self for bout 1300 only way to go rest isa junk
I have found that makeup air requirements aren't always addressed as changes are made in older structures. The building that I'm currently doing maintenance work on has several issues with makeup air and air circulation. Bad engineering in these can lead to inefficient and possibly hazardous operation such as darthmal related.
@Benny902100 It depends! What's the difference between the humidity indoors vs. outdoors, and what are you trying to achieve? That's a rhetorical question. I'm not trying to generate a thread. Just understand your mixing outdoor air with indoor air. Remember back to your high school physics class to imagine what will happen. You can also read all about humidity and air temperatures at my AsktheBuilder website.
So if I have bathroom exhaust fans kitchen exhaust fans clothes dryers furnaces that use indoor air for combustion and exhaust that air outside through the chimney water heaters that exhaust outside through the chimney and use indoor air for combustion fireplaces that use indoor air for combustion and vent out a chimney and central vacuum system’s attic fans And whole house fans all suck air out of the house which causes the house to go under negative pressure if the house is very tight and very well insulated were no outdoor air come in Through leaks or cracks To replace the air that I pushed out Of the house that air needs to be replaced with proper make up air systems so I wouldn’t pull carbon monoxide back into my house because I know it’s not good for me and could kill me.
What is the brand of that vent? I am working on installing a 450cfm exhaust fan in my garage/workshop to help ventilate from welding/paint fumes and deal with humidity in the winter (gets high from snow melt off cars). I think it would work for my application but I can't find anything on google about it.
Can a leaking AC duct create a negative pressure in my home which would suck outside air into my clothes dryer (when it's not in use) causing condensation in my dryer?
The answer is: What has to happen to create condensation? READ ALL of my condensation columns on my www.AsktheBuilder.com website. Once you recall what you were taught in high school physics class, you'll be able to determine the CAUSE of the condensation. Believe it or not, I feel the issue is your dryer exhaust pipe is clogged with lint. I'd check that first.
AC should just circulate air inside the house. As per this video there needs to be makeup air for dryer vent and kitchen vent. I’ve come to the conclusion there are three systems required: AC - internal circulation heats and cools. ERV - energy recovery ventilation that turns over the air in your house. Expels damp or old air and brings in fresh with a heat exchanger for efficiency. Runs constantly. MUA - make up air that boosts air in directly to dryer or kitchen vent when they are on. Theoretically the ERV would do that but due to the volumes expelled with the vents it’s good to feed them independently. We don’t typically have fired furnaces etc in Oz so can’t comment on those 😁
Think of it this way, when you run something that consumes air, and vents it outside, in a way, it creates a 'vacuum' effect in your home (assuming all your windows and doors are closed). So if you are running your bathroom exhaust, and/or your dryer (which both take inside air, and vent it outside), the flap will allow fresh air to come in. Now lets say you have 1 window open in your house, and wind is coming straight at that window. The air will not come into the house and push air out the where the outside vent is located, because when there is no air flow, the flap is in the shut position, and if air is pushing on the flap, it still remains closed (its basically a 1 way air valve). However, the slightest vacuum inside the house will allow for the vent to open enough to let as much air in as it needs.
If given the product and an opportunity to test them, the answer is yes. Perhaps the more important question is one for you. :->>>> I went to your channel and you've been on TH-cam for over three years. But you've never made one video, there is no information as to who you are, what you do, your qualifications, etc. It seems that you might know something about this topic, so why don't *you* make a series of videos about IAQ, systems, etc.????
Hey, I live in Canada, and it get's pretty damned cold. I was wondering if make up intakes would still go together the same way, or if a heated intake would be necessary. I just moved in to a new place and it has a makeup wrapped in insulation.
I'm Canadian too. You really need to look into an HRV (heat recovery ventilator) which uses outgoing exhaust air to pre-warm the incoming fresh air. You can't be simply pulling in minus 40C air without first warming it.
You can look into a heat recovery ventilator system, but DO THE MATH to see if it makes sense. For unlimited free tips each week subscribe to my FREE newsletter at www.AsktheBuilder.com
it is so nice to see somebody that knows wtf is going on. If this were a foam salesman, he would have told you any house without foam is too leaky. I actually test homes, and you are RIGHT! Alot of homes within the last decade are about right or too tight. thnks for the vid!
The always-open feature was designed by the inventor to provide the needed intake air when other things in the house eject air. Bath fans, kitchen fans, central vac units, fireplaces, furnaces, water heaters, etc. Without this protection, you can have backdrafting of fumes. Sounds like the automated damper you mention would have to be pretty smart to know when these random events are happening.
@darthmal Go to my AsktheBuilder website now. Go read EVERY column I have there about Smoking Fireplaces and Chimneys. Your answer is there.
Which one would you install on a roof for fresh air?
I was just on a job where the flue pipe on the furnace and hot water tank was more dust than rust. It was in a partitioned basement and I happened to notice an exhaust fan running in the furnace room section. It is my guess the exhaust fan is having a tug-o-war in the chimney. I called the contractor who lived there prior at an earlier time to shut it off. He agreed. I will follow up on the occupants for safety reasons. It also rotted out the inducer housing. He said he installed it to remove cat orders. Unexpected things get done by home improvement amateurs. I told him to disconnect the wiring and leave the exhaust opening to let the furnace exhaust the room.
To get unlimited tips each week, subscribe to my FREE newsletter at www.AsktheBuilder.com
No offense taken at all. When I see expert comments like yours, I always click to see the channel. I try to encourage those that seem to know stuff to make videos. We'd love to see a quick video of your system or the system if you install it later.
Through the band board or rim joist just above the top of the foundation. You will need a reciprocating saw and possibly a hammer drill if the exterior of the house is masonry.
how often you turn on fresh air system in a work place?
Purchase a air to air exchanger ties into cold air return on furnace has a adjustable timer for cycle time do it your self for bout 1300 only way to go rest isa junk
Thanks!
I have found that makeup air requirements aren't always addressed as changes are made in older structures. The building that I'm currently doing maintenance work on has several issues with makeup air and air circulation. Bad engineering in these can lead to inefficient and possibly hazardous operation such as darthmal related.
@Benny902100 It depends! What's the difference between the humidity indoors vs. outdoors, and what are you trying to achieve? That's a rhetorical question. I'm not trying to generate a thread. Just understand your mixing outdoor air with indoor air. Remember back to your high school physics class to imagine what will happen. You can also read all about humidity and air temperatures at my AsktheBuilder website.
So if I have bathroom exhaust fans kitchen exhaust fans clothes dryers furnaces that use indoor air for combustion and exhaust that air outside through the chimney water heaters that exhaust outside through the chimney and use indoor air for combustion fireplaces that use indoor air for combustion and vent out
a chimney and central vacuum system’s attic fans And
whole house fans all suck air out of the house which causes the house to go under negative pressure if the house is very tight and very well insulated were no outdoor air come in Through leaks or cracks To replace the air that I pushed out Of the house that air needs to be replaced with proper make up air systems so I wouldn’t pull carbon monoxide back into my house because I know it’s not good for me and could kill me.
Get unlimited tips each week when you subscribe to my FREE newsletter at www.AsktheBuilder.com
last 15 year! I'm listening after 15 year of publishing thus now I should take it as last 30 year
Did you know TH-cam allows you to show your gratitude with the *THANKS* text link under the video? Check it out!
What is the brand of that vent?
I am working on installing a 450cfm exhaust fan in my garage/workshop to help ventilate from welding/paint fumes and deal with humidity in the winter (gets high from snow melt off cars). I think it would work for my application but I can't find anything on google about it.
Where can I find the air supply vent?
I have LINKS to great ones in this column: www.askthebuilder.com/fresh-air-intake-vents/
Hi I have a white metal box in my bedroom closet with Freshair imprinted on it. Do these have a filter inside that needs to be changed??
I would say Yes if I were a betting man.
Is this the same thing as a whole house ventilation fan or PTO?
No it is not. Go to www.AsktheBuilder.com and read all about *whole house fans*.
Can a leaking AC duct create a negative pressure in my home which would suck outside air into my clothes dryer (when it's not in use) causing condensation in my dryer?
The answer is: What has to happen to create condensation? READ ALL of my condensation columns on my www.AsktheBuilder.com website. Once you recall what you were taught in high school physics class, you'll be able to determine the CAUSE of the condensation. Believe it or not, I feel the issue is your dryer exhaust pipe is clogged with lint. I'd check that first.
@@askthebuilder It was checked. It's squeaky clean.
AC should just circulate air inside the house. As per this video there needs to be makeup air for dryer vent and kitchen vent. I’ve come to the conclusion there are three systems required:
AC - internal circulation heats and cools.
ERV - energy recovery ventilation that turns over the air in your house. Expels damp or old air and brings in fresh with a heat exchanger for efficiency. Runs constantly.
MUA - make up air that boosts air in directly to dryer or kitchen vent when they are on. Theoretically the ERV would do that but due to the volumes expelled with the vents it’s good to feed them independently.
We don’t typically have fired furnaces etc in Oz so can’t comment on those 😁
that's seems very useful.
They are useful and can eliminate the danger of carbon monoxide poisoning.
@nate379 Equailzer
@NielThomas16 Call your building department TOMORROW.
in case of carbon monooxide as these equalizer has flap, how do this brings in fresh air?
Think of it this way, when you run something that consumes air, and vents it outside, in a way, it creates a 'vacuum' effect in your home (assuming all your windows and doors are closed). So if you are running your bathroom exhaust, and/or your dryer (which both take inside air, and vent it outside), the flap will allow fresh air to come in. Now lets say you have 1 window open in your house, and wind is coming straight at that window. The air will not come into the house and push air out the where the outside vent is located, because when there is no air flow, the flap is in the shut position, and if air is pushing on the flap, it still remains closed (its basically a 1 way air valve). However, the slightest vacuum inside the house will allow for the vent to open enough to let as much air in as it needs.
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If given the product and an opportunity to test them, the answer is yes. Perhaps the more important question is one for you. :->>>> I went to your channel and you've been on TH-cam for over three years. But you've never made one video, there is no information as to who you are, what you do, your qualifications, etc. It seems that you might know something about this topic, so why don't *you* make a series of videos about IAQ, systems, etc.????
where can i purchase one??
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That's great video.
You can get unlimited FREE tips by subscribing to my newsletter at www.AsktheBuilder.com
2007!
I was the FIRST home improvement channel on TH-cam.
I beg your pardon!
Hey, I live in Canada, and it get's pretty damned cold. I was wondering if make up intakes would still go together the same way, or if a heated intake would be necessary.
I just moved in to a new place and it has a makeup wrapped in insulation.
I'm Canadian too. You really need to look into an HRV (heat recovery ventilator) which uses outgoing exhaust air to pre-warm the incoming fresh air. You can't be simply pulling in minus 40C air without first warming it.
You can look into a heat recovery ventilator system, but DO THE MATH to see if it makes sense. For unlimited free tips each week subscribe to my FREE newsletter at www.AsktheBuilder.com