HVAC UV Lights DON’T Clean the Air?
HVAC UV Lights DON’T Clean the Air?
HVAC UV lights are commonly sold as “air cleaners.”But it’s become common knowledge that they don’t actually clean the air itself as it passes through the indoor HVAC system. The air is typically moving too fast to be cleaned effectively anyway. However, in this video, we talk about the benefits of UV lights and what they are actually doing in the system as the air passes through. So indirectly, the air will be cleaner with the UV light in the system.
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We are planning to get Apco X installed into our hvac unit. Nothing with evoporator coil. Does it help? Please advice.
where does the UV light get placed in the furnace, above the evaporator coil ???
I installed mine opposite the humidifier, will it damage the humidifier filter by the direct light exposure?
Thank you for being honest and practical with your advice!
An AC guy told me they prevent rust.?????
Great video and you are on to something. I work for one of the leaders in the industry (Sanuvox technologies) and it all depends on the unit placement. I would gladly give you more information if you wish. keep up the good work
I just took the cover off my 17 year old Carrier Infinity furnace to look at the coils, they were clean as a hell and not even any dust. There was a lot of rust around the other parts but I don’t think I will be getting one of these. I was interested in a UV Photomax which is not for the coils. Your thoughts?
Did you shave your eyebrows?
Hire a professional
How do you know if the bulb blows out? How do you know when you need to change it? We have one in our new system but questions still remain?
There is no such thing as naturally occurring perfectly clean water or air. It may be helpful to say a UV light kills biologic pathogens in the air stream and keeps the evaporator clean if it is lit by the UV light. Cleaning the air is the job of your furnace air filter. Not all pathogens are caught by the air filter and the air filter can not keep them from growing on the evaporator coil and decreasing it’s ability to absorb heat. So placement of the UV light is critical to peak efficiency. Great video.
Thanks for your very informative video. We are really good DIY’ers. Can we install any of those 3 items ourselves? Do you have other videos? We don’t understand where we would install the 4 inch filter… Can you give us a little more info on that? Thank you so much. Also would like info on where exactly to locate the UV light and the ionizer. Hoping to do it inexpensively, because we are moving to a new house in a few months, and will be selling the current house. Thanks for taking the time to make a great video.
I had the vendor toss in a UV light when we bought our new package unit a few years ago. I was skeptical, especially when I saw that I had to mount another 24v transformer to power it, but i put it in anyway, right next to the evaporator. Now, when I clean the unit, it’s easy to see that there’s nothing growing on the evaporator coils where the light is, however, there’s crap on the other side. Next year, I’m likely going to add a second light on the other side of the coil. They work to keep nasty stuff off of your evaporator, there’s no doubt about that.
Thanks for the rational video. Helped me a make a decision.
Are there any UV lights available that do not produce ozone?
I agree with everything that you and your old boss said. I had three quotes from contractors and one of them didn’t quote out a UV light at all till I threw a fit and told him that I wouldn’t even consider his quote till he added the UV in.
you are very correct (I have been in this field since 2010) a UVC light will keep the mold and fungus from going when placed in the FCU or AUH and not really clean the air from microbials , HOWEVER to clean the are you need to have "dwell time" to achieve cleaning the air and this is a calculation of the strength of the UVC lamp with the added section or plenum box to give a dwell time. if done correctly you will achieve cleaning the air but this would have to been a section added to you duct.
this is all heresay – where is the graphs and science? I have some land in florida for ya’ll for sale…omg
Bro, love your video. Made me start the research best light for my system. But I have q uestion, is it true that uv light is bad for plastic and can damage the drain pan?
Yeah like K. Ray says I did this search to look for ways to kill germs and virus like Covid-19. Everything a powerful UV lamp kills is gonna turn to microscopic dust.
Which other organisms could grow in. So that dust needs to washed away into waste water. 🤔
A u v light is for mold, bacteria , viruses. If your trying to clean the dirt and dust and so forth you need a good filter. But a u v light inside the unit on the coil is one of the best things you can do for your a/c unit and yourself
No one should be installing additive air "filters" Just stick with MERV 13 and oversize the filter grille. Also the UV lamp needs to be coated, otherwise it will produce ozone.
So i installed one if these uv lights in my airhandler and im getting a pretty good smell from it while its on,what is that smell uv ? Ozone ? I did hook it into a outlet so i pulled the plug until i figure out this smell,i may have installed it to close to the blower motor and its really smelling pretty bad,if i moved it to the other side of the blower motor do you think it wouldn’t smell as bad ?
What a JOKE UV doesn’t kill anything if they did there would be no NEED for a filter. UV lights have been a scam for 30 years. Only way to clean the AIR is run it thru water to catch ALL particulates!!
Why can’t the UV rays from the sun clean the air before it comes into the home?
I purchased a unit but not sure where to put it. Since the evap coils are mounted on top of the furnace, Will the lamps overheat in the winter when the burners are on? Also, my service guy said that I have fiberboard connecting the furnace to the main duct so the UV will deteriorate that board. Is he right?
This is good I tell my customers this and they are caught by surprise because the last guy who installed it told them it “purifies the air” when that isn’t the case at all it’s just a contact killer that keeps the air handler clean plain and simple. I try to sell polarized air filters if I can due to them being more effective and actually trapping very small microns on dirt and chemicals
Thanks man. Common sense. I have one now
It kills pathogens.
Ok how about discussions on UV light locations? There seems to be a lot of discussions regarding mounting locations, being upstream or downstream of the evaporator coil. From your experience, what’s best upstream, downstream, or two lights covering both locations?
I think they’re a pricey gimmick. I don’t believe the air has enough time to be cleaned as it rushes by some ultraviolet light. Get yourselves a 4" or 5" filter cabinet and skip the electronic air cleaners!
What’s going on in Milwaukee with all the street lights turning UV? Any idea?
You should also include the manufacturers suggestions and what they offer as evidence to their product and what it does. You’re just talking about what it doesn’t do but there’s no comparison to fact.
Apply some science to your video. Bust the manufacturers if you have the evidence I’m on your side since we install many of them. UV kills bacteria! We use it in our water systems. It works.
I got Carbon-X installed by GreenUV works great!
My system is a hot air system only can I just place a uv lamp on the intake side? I’m just looking for it to kill any bacteria or viruses that pass by it
Should uv light be inside a coil or on top or both?
We put in a new system a few years, had a grounded something or another in the old one, and they installed a reme halo. Now, we did a check up and they are saying the reme halo doesn’t work anymore, that the lights still work but something else isn’t working, and they want 1900 to install a Solaris system. I’m trying to research as much as possible, to figure out what I need to do.
Anyone experiencing a burning smell after installing your uv lamp
I have seen where the uv light causes damage to drain pan in the air handler and also dry rotted flex ducts on the return side
It definitely sanitizes the air briefly as it passes over it, but as soon as that air gets into contact with the surfaces, you’re right back to square one basically. I personally think it’s shameful. That media filters are not more widely utilized in every single home especially knowing now what we know about indoor air quality. I’m a Sucker for an Aprilaire merv13 &recommend them for every single Install at MINIMUM whether there are air quality, concerns or not. It keeps the equipment really clean, for Most houses, it’s an annual filter And IMHO for +-$50/filter, you really can’t beat it & it’s got incredibly low pressure drop. It breaks my heart when I see somebody replace their equipment and nobody even has a conversation with them about air quality. so many houses have allergy suffers today.
Helps alot! Definitely will be getting uv light! Thanks so much!
Where are you based out of?
Wow, another honest person, an ac duct cleaner said same thing to me, air travels to fast.
it works if installed properly….
As a tech im still new to the trade ik uv lights are for mold build up on the a coil
What is good for a pack unit I need the best to make my coil last the longest what is good for that. I have get the coil epoxy coating for.