FAQ

Why would I install UV in my furnace at home?

The use of UV-C in your home Heating, Ventilation and Air Conditioning (HVAC) system reduces the biofilms on the coil and keeps mold and bacteria out of the drain pan. This does several beneficial things:

   > Keeps unwanted microorganisms from spreading in your home

   > Allows it to be more thermally efficient in transferring heat to cool or heat your home - saving you energy

   > Prevents the blower from working too hard to push air through a partially clogged coil – extending your system life and reducing potential repairs

 

What size unit do I require?

Looking at the size of filter your furnace uses will generally give you a good indication of the maximum size of UV-C lamp your HVAC system can accommodate at the coil.  Many newer homes can accommodate a 20” lamp with no problem. If your system takes 20x25 or 20x24 filters, you are good to go with a 20” UV-C lamp system.

 

Some older homes, and some homes that have multiple, smaller HVAC systems for multi-zone setups, will require the smaller 14” UV-C lamp size.

 

How much electricity is required?

Most American Ultraviolet UV lights operate on 120V/60Hz and draw <5 amps. Please consult individual product pages for more specific information on a particular product.

 

How long does a UV lamp last?

This can vary widely based on the quality of UVC lamp and how the germicidal lamp is being used. Though many companies offer lamps that last 12 months, American Ultraviolet provides lamps that should be replaced every two years.

 

It’s been more than 24 months and I can see the lamp still emitting a blue glow; is it still good?

Germicidal UV-C lamps will typically emit a blueish glow long after the recommended lamp change timeframe, but they are not producing enough UVC to be effective and need to be changed at the recommended intervals for optimal performance.

 

What is the size of a water purifier for residential applications?

This depends on whether you are treating all the water entering the home at the Point of Entry (POE), or if you are treating the water exiting individual faucets – like your kitchen sink – at the Point of Use (POU).

 

   > Whole house POE applications are generally handled with a 10 gallon-per-minute , AQ-10 (GPM) system.

   > “Under Cabinet” POU applications can be handled with a 2 gallon per minute  , AQ-2 (GPM) system as most faucets’ flow does not exceed 2GPM.

 

What does an in-line water system do?

An in-line UVC water purifier will reduce the harmful bacteria and viruses that can be found in residential drinking water. UVC systems eliminate 99.9% of unwanted microorganisms for the water. A UV-C water disinfection system will not change the color or flavor of your water.

 

Where’s the best place to install a whole-home POE inline UV-C water treatment system?

UV-C energy is most effective in the cleanest, clearest water, so the cleaner the water going in, the more effective the UV-C system is at reducing the microbial content of the water.  Simply put, the UV water system should be the final step before the water goes to use within the house – after any filters, water softeners and Reverse Osmosis systems.

 

Why would I use a BLADE Handheld UV-C unit?

The Blade unit is a lightweight UV-C device designed to reduce microbial load (bacteria, viruses) on non-porous surfaces, such as your countertop, mobile phone, computer keyboard, and TV remote.

 

How long does it take to reduce microorganisms on surfaces?

UV-C disinfection works via time and intensity; the closer you have the device to the surface, the shorter the disinfection time. Most household applications require less than 5 seconds when ≤ 2 inches away from the surface.