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 it makes sense to use UV is on the coil and pan. Please confirm if I am right and if you can cite any sources for this that would be great. 

Tags: HVAC, UV, consumption, electrical

Views: 265

Reply to This

Replies to This Discussion

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

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.   UV dose = intensity  X time.  I slow down the ECM blower motor  to 250 CFM but on 24/7/365 and with UV light & air cleaner it uses some $150 yr cost power and with a little outside air will keep building positive and blows out the dirt and vapors.  www.sanuvox.com  is one I have used for years and years.   There are others that work well also.   UV has been used for 70 years.   Down side is the UV can rot PVC wire coating and poly pans on AC coils.  Fiber glass is ok for a pan.  UV can eat up a filter in 30 days 

yourhome.honeywell.com/home/.../UV.../SummaryList.htm

RSS

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Craig Foley posted an event
Thumbnail

NESEA BuildingEnergy '15 at Seaport World Trade Center, Boston

March 4, 2015 from 10:30am to 12:30pm
High-Performance, Green Homes in Residential Real EstateInstructor Craig Foley will present three…See More
14 hours ago
Casey Gesell posted a video

ThermalDry® Insulated Floor Decking!

Larry Janesky, owner and founder of Dr. Energy Saver is once again On the Job insulating and finishing a basement in the northeast – and introducing a brand new insulation product: ThermalDry Insulated Floor Decking. ThermalDry Floor Decking was…
15 hours ago
Profile IconBergen Heat, Travis Thom and Amita Singh joined Home Energy Pros
18 hours ago
Tom White's video was featured

U.S. Department of Education Webinar for HVACR Educators

Rebroadcast from On April 30, 2013 Sharon Miller and Robin Utz of the U.S. Department of Education conducted a one hour webinar for HVACR educators to provide them firsthand information from Washington. Highlights include: * A blueprint to revise…
18 hours ago
Tom White posted a video

U.S. Department of Education Addresses HVACR Educators 4-30-2013

Rebroadcast from On April 30, 2013 Sharon Miller and Robin Utz of the U.S. Department of Education conducted a one hour webinar for HVACR educators to provid...
18 hours ago
Nate Adams's discussion was featured
yesterday
Bud Poll replied to Bud Poll's discussion CO poisoning in Yarmouth Maine
"Hi Chad, I sure would like to hear the follow-up on what caused the CO issue down there.  As…"
yesterday
Chad Mcaulife replied to Bud Poll's discussion CO poisoning in Yarmouth Maine
"I got a call yesterday from a homeowner who had a direct vent furnace installed a year ago and she…"
yesterday

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service