Howard Katzman
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UV lights on filters
14 Replies

I recently saw UV bulb installations in 2 HVAC systems in a home. Each system had the Lennox Healthy Climate filter box that has 2 UV-A bulbs inside; the label said 150 watts which I'm assuming is…Continue

Tags: consumption, electrical, UV, HVAC

Started this discussion. Last reply by Eric Kjelshus Jan 20.

 

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Eric Kjelshus replied to Howard Katzman's discussion UV lights on filters
"I use a high end UV light in my own home,  If I cook BBQ inside the house it will stink for 30 min and the UV/air cleaner will clean it  up, I do not sick as most and I shake all hands.   if UV dose is large will change the DNA.…"
Jan 20
reflintorm replied to Howard Katzman's discussion UV lights on filters
"Ultraviolet (UV) light is part of a family of radiations called the electromagnetic spectrum. UV is just beyond the violet end of visible light and has smaller wavelengths and greater energy. reflector design "
Jan 20
Richard Beyer replied to Howard Katzman's discussion UV lights on filters
"You all may enjoy this "new" finding published on August 08,2014.... Formaldehyde can cause leukemia and at least two other types of cancer, the National Academies said in a review issued Aug. 8. There is sufficient evidence from human…"
Aug 11, 2014
Richard Beyer replied to Howard Katzman's discussion UV lights on filters
"Eric, Respectfully speaking, RH does rise to the attic even in a sealed building. Heat rises and the moisture generated in the home by the occupants follows. Research is currently under way due to open cell spray foam odors in the attic and damp…"
Aug 10, 2014
Eric Kjelshus replied to Howard Katzman's discussion UV lights on filters
"Air advice .com on there reports marks what in bad and red mark and higher is bad or above the EPA limit.  I found the CO is lower than other ways  and dirt to be higher than TSI and gray wolf.  but over all a good start point of how…"
Aug 10, 2014
Richard Beyer replied to Howard Katzman's discussion UV lights on filters
"Howard another solution for more practical tested results would be to keyword the epa.gov website. This is one link found regarding uv light in duct work. There are many like this which show positive results which come with a cost to…"
Aug 10, 2014
Robert H replied to Howard Katzman's discussion UV lights on filters
"Uv lights do not create any byproducts.  You may be thinking about ozone. Ozone has some good uses in UNOCCUPIED buildings,  Ozone will damage many things so regular use is not a good thing  but if you have smoke or other odors you…"
Aug 8, 2014
Howard Katzman replied to Howard Katzman's discussion UV lights on filters
"Richard and Robert, Good posts. You mention concern with chemical pollutants that aren't captured with particulate filters. My understanding is that UV lights can also create ions and charge particles in the airstream. How does ionization…"
Aug 8, 2014
Eric Kjelshus replied to Howard Katzman's discussion UV lights on filters
"I put a watt meter on my unit at home with UV and ECM motor Ele air cleaner  last yr was $210 ( with out tax and other charges) for both on 24/7/365.   The ECM motor is on CIR so its some 450 FPM or 300 CFM or low low speed. til AC or heat…"
Aug 7, 2014
Richard Beyer replied to Howard Katzman's discussion UV lights on filters
"I agree with Robert 100%. To many people poo-poo away indoor IAQ. However, filters are only good for particulate collection which studies have shown will damage lung tissue. Living near a highway or industrial site or even in a home with…"
Aug 7, 2014
Robert H replied to Howard Katzman's discussion UV lights on filters
"How do you measure what they prevent? For some people they can make a difference and others they may not see a noticeable diference. I would not put one in a filter box.  I would mount it above the coil.  I think in some circumstances…"
Aug 7, 2014
Ed Voytovich replied to Howard Katzman's discussion UV lights on filters
"I put them in my system thinking that the idea made sense.  I turned them off after a year or so because (1) they wasted energy *and* because (2) I was convinced by experts on this forum or another that covers the same subjects that matters…"
Aug 7, 2014
Robert H replied to Howard Katzman's discussion UV lights on filters
"Was there a catalyst?  For disinfecting you are looking at UVC not UVA. I have seen systems that UVA  activates a catalyst. UVC is used in hospital operating rooms and have been shown to reduce the infection rate. UVc is effective at…"
Aug 4, 2014
Howard Katzman's discussion was featured

UV lights on filters

I recently saw UV bulb installations in 2 HVAC systems in a home. Each system had the Lennox Healthy Climate filter box that has 2 UV-A bulbs inside; the label said 150 watts which I'm assuming is the total for 2 bulbs. These bulbs are on 24/7/365. I calculated that at 150 watts per filter box x 2 boxes they are consuming almost 2600 kWh per year, costing the customer about $30 per month. My recollection is that trying to sanitize the airstream is basically ineffective and that the only place…See More
Jul 23, 2014
Richard Beyer replied to Howard Katzman's discussion UV lights on filters
"Howard, There are numerous manufacturer's who swear these systems work and then you have the EPA who states this is not a regulated industry. It's buyer beware. In my opinion, any system which will help clean the air is better than nothing…"
Jul 21, 2014
Howard Katzman posted a discussion

UV lights on filters

I recently saw UV bulb installations in 2 HVAC systems in a home. Each system had the Lennox Healthy Climate filter box that has 2 UV-A bulbs inside; the label said 150 watts which I'm assuming is the total for 2 bulbs. These bulbs are on 24/7/365. I calculated that at 150 watts per filter box x 2 boxes they are consuming almost 2600 kWh per year, costing the customer about $30 per month. My recollection is that trying to sanitize the airstream is basically ineffective and that the only place…See More
Jul 21, 2014

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