The sun emits three types of ultraviolet (UV) light: UVA, UVB and UVC. You are probably most familiar with UVA and UVB rays, which might cause sunburn unless you use a broad-spectrum sunscreen. UVC rays are separate. The sun still releases them, but the earth’s ozone layer absorbs all UVC rays, so you don’t come across them in nature.
UVC light provides useful germicidal benefits. In actuality, it has been used as a purification method for a long time. As the highest energy portion of the UV radiation spectrum, UVC light helps destroy microorganisms like bacteria, algae and fungi within 10 seconds of contact. When used in your HVAC system, germicidal UV lights could drastically improve your indoor air quality.
How Do HVAC UV Lights Work?
Ultraviolet lamps are installed inside your ductwork, where they function continuously. Air blows past the lights when the furnace or air conditioner operates, and powerful UVC rays inactivate and kill nearly all viruses, bacteria or mold present in the air. Inactivated microorganisms don’t reproduce and die shortly after UVC exposure.
5 Pluses of Using UV Lights in Your HVAC System
With other types of air cleaning possible, why should you consider installing a UV light in your HVAC system? Think about these advantages:
1. Sterilized Coils
The evaporator coil in your HVAC system is often wet, especially when it’s hot. By constantly shining UVC light on the coil, mold and bacteria cannot take hold.
2. Healthier Indoor Air
Media air filters might be effective at grabbing dust, pollen, dander and other bigger pollutants, but only the highest-rated HEPA filters can catch the smaller bacteria and viruses. UV lights decrease the number of microorganisms in the air without reducing airflow.
3. Better Efficiency
By maintaining normal airflow and keeping the equipment as clean as possible, UV lights help your HVAC system run more easily. This, in turn, reduces your energy costs every month.
4. Greater HVAC Life Span
Clean equipment works more steadily and breaks down less regularly. It can even last years longer.
5. Reduced Condensate Drain Line Clogs
Air conditioners and high-efficiency furnaces create condensate, which flows away from a nearby pipe. Over time, algae can obstruct the drain line. By stopping organic growth in the first place, UVC lights reduce the likelihood of water damage from a clogged condensate drain pan.
Who Should Use Germicidal UV Lights?
When you review all the benefits they offer your HVAC system, UV lights could clearly prove worthwhile in any house. You are most likely to appreciate having HVAC UV lights if you or anyone in your household has:
- Any respiratory issue
- Weakened immune system
If you’re thinking about getting germicidal UV lights, chat with Finch Air Conditioning & Heating. We can suggest the best system based on your HVAC equipment and indoor air quality needs. It’s important to leave UV light installation and maintenance to a professional as UVC exposure may cause skin or eye injuries. To learn more about how UV lights function, or to schedule a free home comfort consultation, reach us at 281-407-9478 now!