Air Purifier Whole House Uv Light in Duct for Hvac Ac (Air Conditioning) Duct Germicidal Filter + 2 replacement bulbs

Original Review: (1star)This is my second unit that got for my in-laws.First unit works very well in our HVAC, runs cold for over 5 years now, just change bulbs twice a year, we are happy. But the recently purchased unit started to emit foul plasticky burning odour shortly after installation. It was very hot to touch after about 30 mins and I have turned it off for fear of fire. Will try one more time tonight… but feels like it is going to be returned.Update: (5stars)received replacement from Amazon very fast. Replacement works as expected. No issues

Quick and easy to install if U need power run a extension cord up thru your attic and plug it into your light fixture in attic. or to the closes outlet !!about 30 min max.

First thing to know is that I bought mine in 2020 and am buying a second one this week.My biggest complaint is that the blue "check if not lit" light does not really help at all on my unit. It was fully lit even though both lightbulbs had burned out. Each set of bulbs were only supposed to last a year I was told, so I decided to crack my HVAC open when the blue light was still on three years later. Oops! both were out for the count. So now I have a very small drill hole in the sheet metal that I filled with silicone caulk so I could see in the HVAC duct myself. I'm also setting a reminder on my phone to check it every three months when I change my furnace filters.Installation considerations. (1) I was going to hook it up to the blower fan power so it would turn on only when the system ran, but after investigating it further I decided not to because it appeared that it may actually shorten the life of the bulbs. (2) Pay attention to how long the cord is as you wargame where you want it because 9 feet (I think mine was closer to 8') really does not give you as much distance as you would think. Mine was installed about chest height and the outlet seemed to be just over a couple of feet on the ceiling and I barely had enough length to make look nice and neat.

Excellent value for money.Good for 1 year (about on par with other brands)Good when you only have a few inches available to install

I'm an electrical engineer with 20 years experience in HVAC control systems. I had purchased a very expensive Sterilaire unit years ago for our home air handler, and it was nothing but a huge headache, as it was too powerful and would scorch nearly any surface in its field of light. So, we kept having to relocate it.This nice unit is much easier to install, and works well with fiberboard ductwork which is so common in Florida.It took literally 15 minutes to install.I had the tools already, including a drywall hand saw, and HVAC foil tape. I recommend both, and in addition, I used longer black screws instead of the short ones supplied by the mfgr.I also copied the template onto a blank full sheet shipping label, which allowed me to peel and stick the template, to get it level.I installed mine in a vertical main return air duct, instead of on the supply side, so that any zapped pollen or virus particles kept captured by the 4"thick filters on our Carrier heat pump.One important tip: Never look at the bulbs unless you have welders glasses or the equivalent. UV bulbs can burn your retina. If you want to test the unit before you cut holes in the ductwork, place it in a closet or laundry room, close the door, and plug it in to an outlet outside that room or closet. You should see blue light coming under the door.. Unplug it before opening the door, and now you now it's a working unit, without risking damage to your retina.Lastly, I love that spare bulbs are included. The replacement bulbs for our Sterilaire unit cost $200 per pair, making it prohibitively expensive, whereas even at year 3, these bulbs can be bought for $30 a pair. Big difference.Now I need to find a smart plug to sync with my smart Tstat, so the bulbs are onky on when the air handler is running.

Seems like a good deal! The company that services my heating & cooling wanted $650 to install a uv unit with only one bulb. I researched uv lights and chose to do it myself. Installation was helped by the seller when I emailed them a picture. They returned it with the place best to install circled. This was a big help as I have a whole house humidifier installed in the return air duct. Their choice of location was perfect, below the heat exch coil & solved my problem of whether to put it before or after the humidifier. Installation would have been easier if I had a metal hole cutter, but it's in and working and it comes with 2 extra bulbs. Also a long cord. A really easy thing to install for the diyer. Just be careful not to look at the lighted bulbs without uv eye protection glasses. I used ones that came with my automobile ac service kit.Update. I installed this in Oct 2017. Didn't replace bulbs after a year as recommended by manufacturer. My bad! What was I thinking?The bulbs were still ok after a year so I left them in and forgot about it. Lately I noticed a different smell to the inside air. Just happened to look inside theplenum where I had installed the UV lights. (I had provided an extra hole to look thru but kept it covered with tape). Both bulbs burned out! I'll replace them every year now. Live and learn. 🤭