Germicidal or UV lights for HVAC systems are used to kill the DNA of germs, viruses, mold spores, bacteria and fungi as they pass through the air handler system. A strategically placed UV light is very effective at killing close to one hundred percent of these harmful pollutants.
Should HVAC UV light always be on?
They need to run 24/7
Depending on which model you went with your UV light bulb will be running constantly. For example, UV lights fitted in the air handler will be on all the time. In contrast, those placed inside the ductwork will only need to be on when the AC is running.
Is UV light for furnace worth it?
UV light in HVAC units can be most effective in killing mold and mildew. Contact with mold can be dangerous for your unit. In addition, it can also be bad for your indoor air quality and even cause allergies in some people.
Are UV lights good for HVAC systems?
Proper air filtration is the first line of defense against the circulation of microbes within your HVAC system. With the right conditions and proper installation, UV lights can be very effective at killing viruses, mold, and bacteria.
Where is the best place to put a UV light in a furnace?
The best location to install a UV light if in the A-shape is above, center, and downstream of the coil. This allows the A/C ultraviolet light to shine the most amount of light on the coil, while killing some of the airborne microbes. The second best location is below the evaporator coil (if there is room).
How long do furnace UV lights Last?
6 to 12 months
Usage of the HVAC system ultimately determines how often you should replace the UV lights in your air purification units. We recommend changing your UV germicidal light at least every 12 months to maintain a clean, healthy environment. Lamp life is generally 6 to 12 months for most brands.
How can you tell if your UV light is working?
For most residential UV lamps, the elapsed time is about 9000 hours, or one year of continuous use. After this time, you may very well still see the blue glow. Again, that’s more a sign that the lamp is still getting power and not an indication that your water is fully inactivated.
Do HVAC UV lights smell?
In short, the use of these lights is not hazardous inside the system and any metallic odors you smell may be the result of the production of ozone gas by the UV-C lights.
Which is better ionizer or UV?
UV-C light is the clear winner when compared to Bipolar Ionization. UV-C disinfects surfaces and air, provides much quicker disinfection, and is backed by significant scientific research. Bipolar ionization is less effective, lacks validated research, and the technology is being questioned over false claims of safety.
Do HVAC UV filters work?
So do UV lights for HVAC systems really do what they’re supposed to? It’s clinically proven that UV lights work. UV lights are capable of killing 97 percent of bacteria, even bacteria resistant to antibiotics, and can kill viruses and mold as well.
What are the benefits of UV light?
The three primary health benefits of UV exposure are the production of vitamin D, improvement in mood, and increased energy. Moderate exposure to UV radiation is a good source of vitamin D. This vitamin aids in the regulation of calcium metabolism, insulin secretion, blood pressure, immunity, and cell propagation.
Does a UV light go in the supply or return?
Ultraviolet lamps can be easily added to an existing forced air system. Lamps can be installed either in the main supply or return duct of a central heating or air system. The best installation location for a UV lamp is downstream of the air conditioning coils on the supply side of the heating/cooling system.
How much does UV light cost?
They can determine what position will maximize the effectiveness of the UV lights. Coil-sanitizing lights are the cheaper option. Expect to pay $60 to $300 for the lights and $100 to $300 for professional installation. Air-sanitizing lights cost between $80 and $400.
Do UV lights use a lot of electricity?
Currently, most of these lamps operate at 300 to 600 watts per inch with some newer systems using lamps that generate up to 1000 watts per inch. So a 30 inch UV bulb may be capable of an output of 30,000 watts. They also operate at very high temperatures (850 to 950 Celsius or 1550 to 1750 Fahrenheit).
Whats the best UV light for HVAC?
The Best HVAC UV Light Systems
- Bio Shield Antimicrobial Protection UV-C Air Sanitizer. …
- Honeywell UV2400U5000 UV Air Purifier with AirBRIGHT. …
- Pure Air UV Air While House Air Purifier. …
- OdorStop OS144PRO1 UV Air Purifier. …
- OdorStop OS144PRO1 UV Air Purifier.
How do you replace a UV light on a furnace?
Quote from Youtube video: Loosen. The two screws that are holding the bulb in place. And then remove the bulb. Unpack the new bulb that you got insert it back into the hole where the old bulb.
How often should UV lights be replaced?
approximately every 12 months
Typically, a UV lamp being used primarily to disinfect the air circulating through a home or small office should be replaced every 9000 hours or approximately every 12 months.
When should I change my UV light?
UV lamps should be replaced once every 12 months. UV lamps have a lifespan of approximately 9,000 hours. Calculated out, this means the lamp can operate for about 375 days before requiring a replacement.
Can you touch UV bulbs?
Avoid touching or scratching the glass section of the lamp. Fingerprints weaken the lamp envelope, and this may lead to lamp explosion. Do not touch the lamp while working.
Do UV bulbs get hot?
Conventional UV lamps produce a substantial amount of heat which is then transferred to the flow of the water. This leads to the heating of the process water and elevated heat can lead to quartz sleeve fouling.
Are UV lamps safe?
Exposure to UV radiation can cause damage to your skin, especially if you’re exposed over time. For example, it can lead to premature wrinkles, age spots, and even skin cancer. But the FDA views nail curing lamps as low risk when used as directed by the label.
