13 best uv light for hvac

Product description

Air Purifier whole house UV Light in duct for HVAC AC Duct Germicidal Filter. Air Purifier Ultraviolet Light HVAC Dual lamp in duct. 120V UV-C dual light for an a/c duct. This is a powerful UVC unit that is rated for Air systems 1-5 tons, kills up to 99.9% of existing mold, mildew and airborne viruses and will prevent them from ever growing again and spreading. By killing and preventing airborne contaminants you will be less susceptible to allergies, asthma, breathing problems, headaches, dizziness, neurological problems and other long-term health problems caused by mold, mildew and airborne viruses. STERILIZES. DEODORIZES. PURIFIES THE AIR. JUST BECAUSE YOU DON’T SEE IT DOESN’T MEAN YOU DON’T BREATHE IT!!! All our units have an electronic ballast and an LED light to check that the unit is on. All Our bulbs are germicidal UVC and put out 253.7NM, which means that they are 99% efficient on a single pass. Installation is very easy and takes only 15 minutes, just cut two 1-1/2 inch holes in your duct (template included) slip the lamp inside and attach the aluminum strips/screws, then simply plug it in with the 9 ft cord included. Dimensions in Duct: 8" Power 120 50/60Hz Amps: 0.36A Lamp Life: 10,000 hours

• 3 Years warranty on the unit.
• Original OEM R-18D model by Pure Air UV.
• Easy to install.
• All our units have an electronic ballast and a LED to see if unit is on.
• EPA Est. No. 97280-FL-1

User questions & answers

Question:	Do the light bulbs come with the unit
Answer:	Yes! The first unit I received didn't work. Called nVent and they sent a replacement.
Question:	Is this UL listed
Answer:	110 Watt
Question:	Does the unit will stay on whole time
Answer:	Control range of temperature : 44F to 90F. If you're an old(62) guy like me, you buy it because of the nice big display.
Question:	Should this be installed in the plenum or below the coils
Answer:	careful now. that 24 v AC. Because most home units use this control voltage. Because this is battery powered, you do not need the 24 volts to operate the thermostat. So whatever input you have will just get switched to the Y G or W terminal.

Product description

120V-220V VOLTS POWER INPUT SMART BALLAST 14" Ultraviolet Cleaner is designed to destroy and prevent mold and other microbial growth on the evaporator coil and surrounding areas. 14” UVC Germicidal Coil Cleaner with magnetic bracket for easy installation. 120VAC Electronic power suppy Intelligen Voltage Protection (IVP): protects the A/C system from electrical overload 1 year warranty including UV Lamp 6ft Lamp cord and 5ft from the ballast to the transformer. Feel free to contact us for any questions. EPA Est No. 96373-FL-1

• 120V with regular U.S Plug is has switch to 220V
• 14" Uv light germicidal bulb
• Magnetic bracket for easy installation
• Replacement bulb availble in the link: https://www.amazon.com/dp/B08WNTRVVK

User questions & answers

Question:	is this UL Certified for safety
Answer:	It does not include a flow sensor...the unit is designed to stay on 24x7.
Question:	Does this just run all the time or should it put on a timer
Answer:	It depends on what bulb size you purchase. It currently ranges between $29.99 - $45.99
Question:	Is this non ozone
Answer:	I ended up not using this item, not because it didn’t work because it didn’t fit on my system. It is ok to place two if you have space to do so. UV light with cause plastic and wire insulation to deteriorate over time so these lights should always be installed after the evaporator coil where there is no plastic. If your plan is to place one on your inlet duct make sure there is not any plastic or wiring near by.
Question:	Bulb wattage
Answer:	LOL!! 'FROM an HVAC website-" Well, our company has done work for Ohio Edison for decades, solving issues created by bad contractors. I can assure you that the statement ''lights MUST be mounted next to the evaporator downstream of the coil" That's a bunch of HOGWASH. Yes, the benefit of that installation is to kill the germs on the coil but it is NOT A MUST. Isn't it interesting that an HVAC company would recommend an installation that will make the evaporator's plastic drain pan brittle and could cause it to crack, which BTW could cost you upwards of $900 to $1200 for a new coil.... IF YOUR LUCKY that a new coil the right heigth can be found since the newer coils are dimensionally much taller. We have had to install the new shorter furnaces because the newer coils were too big and would not fit in limited spaces.

Product description

*24VAC POWER BALLAST if you need 120 Volts (Plug-IN) unit with plug please go to the link: https://www.amazon.com/dp/B08HHLWYQH?ref=myi_title_dp *If you go with the 24V model you may want to add dedicated HVAC transformer, It is not included and here is the link for the hardwire verion: https://www.amazon.com/s?k=B01HPJT7C0&ref=nb_sb_noss *If you go with the 24V model you may want to add dedicated HVAC transformer, It is not included and here is the link for the plug in verion: https://www.amazon.com/s?k=B083R621RV&ref=nb_sb_noss Trouble Shooting Guide: Problem: UV Lamp not lighting. Solution: 1. Check that power is applied 24-28VAC To the ballast. 2. Ensure the remote lamp cables are properly connected 3. Turn the power down for 15 min, make sure to connect the bulb first before the power then turn power back on. 4. Consult seller or call/text tech support 561-777-9122 Problem: Power Supply Will Not Light UV Lamp even after new lamp are installed. Solution: Consult seller or call/text tech support 561-777-9122

• 24V VOLTS POWER INPUT -Power supply! (needs to be hard wired to 24v transformer)
• IF YOU NEED 120V PLUG IN UNIT GO TO THIS LINK: https://www.amazon.com/dp/B08NFG75B6?ref=myi_title_dp
• 14" Uv light germicidal bulb
• Magnetic bracket for easy installation
• EPA Est No 96373-FL-1

User questions & answers

Question:	i cant seem to find a place to buy extra bulbs for this brand. where do i look
Answer:	Room temp numbers are about 1 inch high and setting numbers are about 5/8" high. The numbers are clear and easy to read. Works great for me.
Question:	When replacing the bulb, is it a twist out twist in process without having to remove screws after installation? Such as easy remove and replace bulb
Answer:	HEAT SWING - Set system switch to HEAT, press both the + and- buttons together for 3 seconds. Use the + or - key to adjust the swing from +/-0.2 to +/- 2 degrees F. Slide system switch to Heat/Cool position or wait approximately 15 seconds to return to normal operation COO SWING - Set system switch to COOL and follow above instructions.
Question:	Does this kit come with site glass or do you sell that in a seperate UV kit
Answer:	yes, put the red wire on R and the white wire on W. Set the program to 1H and set to gas or electric depending on the type of heat you have. 2 wire will require batteries
Question:	How long is the lamp cord
Answer:	Dear customer Cost-effective, Comprehensive functions, easy installation, fast programming

Product description

Air Purifier UV LIGHT ultraviolet for hvac dual lamp duct . 120v uv-c dual light for a/c duct. 
This is a powerful uvc unit that are rated for Air systems 1-5 tons 
 
PROUDLY DESIGNED IN USA Installation is very easy 15 min, just cut two 1.75 inch holes in your duct (template included) slip the lamp inside and attach the self drilling screws (included in box), then simply plug it in with the 10 ft cord included Dimensions in Duct: 8" Power 120Volts 50/60Hz 10 ft power cord with 120v plug. fit any regular electric outlet

• UV-C light system
• Designed to be installed on your HVAC Duct.
• All Our bulbs are UVC and put out 253.7NM
• 120v with plug and 9ft power cord
• EPA Est No 96373-FL-1

User questions & answers

Question:	Im considering adding two lights to my hvac, one in duct and other in coil/pan area. is this advisable? will this product work in those actions
Answer:	It gets connected to the ground wire from the power for the thermostat.
Question:	Where exactly do you install this
Answer:	Hi First sensor comes with Thermostat , second sensor comes with heat cable , if you need third sensor you can buy it separably ( doesn't have to be Schluter , could be any other brand ) thank you , Global Trade & Distribution
Question:	UL listed
Answer:	Yes, but I didn't need it. Just needed to replace the control unit.
Question:	Does this stay on all the time? Or would I have to install a relay
Answer:	Same

Product description

The OS72PRO is a 72 watt air purifier and is the most advanced system available. It has an energy saving airflow sensor that turns the unit on only when the HVAC system turns on and also has LED lights that verify the unit and bulb are operating properly.

The OdorStop System is easy to install and comes with step by step directions with pictures, a cut-out template, mounting screws, and foam tape already attached. Simply cut out the template, drill holes, insert unit, plug in and begin enjoying fresh, clean air, that is free from unwanted contaminates.

The OS72PRO’s PATENT PENDING design and technology guarantees that you are getting a state-of-the-art UV air purifier that will provide years of trouble-free service. BUYERS BEWARE! OdorStop units have been imitated, even to the point of others copying our exact model numbers. To ensure you are purchasing GENUINE OdorStop products, please look for the trademarked OdorStop name and logo.

Product Specifications: High Quality ABS Plastic Housing, Energy Saving Airflow Sensor (System must be installed where there is sufficient airflow to activate sensor), 2-16", 36 Watt UVC, 254NM Bulb, 120V, On/Off switch, LED Indicator Lights, 6 Foot Power Cord, 8”H x 8”W x 3”D, 5 Lbs, Easy Installation and Bulb Replacement, 2 Year Limited Warranty, Treats areas up to 10,000 Sq. Ft.

Tools Required: Drill, 1/4” Nut Driver, 1/8” Drill Bit, 2 ½” Metal Hole Saw. OS7212PRO - System with 12" UV Bulbs available for ducts with less than 16" of depth.

• 🛑 Energy Saving Airflow Sensor Turns Unit On Only When the HVAC System is Operating
• 🛑 2-16”, 36 Watt UVC, 254NM Bulbs, 120 Volt, 6 Foot Power Cord, 8"H x 8"L x 3"D
• 🛑 LED Indicator Lights Verify Proper Bulb and Unit Operation, Installs in Minutes, Step-by-Step Instructions with Pictures
• 🛑 LED Indicator Lights Verify Proper Bulb and Unit Operation, Installs in Minutes, Step-by-Step Instructions with Pictures
• 🛑 OS7212PRO available for installation in ducts with less than 17" of depth. EPA Est. No. 94721-CHN-1

User questions & answers

Question:	Is this EPA compliant
Answer:	Yes this come with all the parts.It comes with viewport (Sligh glass) that you drill and push inside the hole.
Question:	How do I know if I need a 36 watt single, or a 72 watt double? My house is 2400 square feet
Answer:	From transformer to lamp, I want to say at least 3 feet. Maybe 4. I had to zip tie excess on outside of cabinet. Dont forget to cover plastic on wires with foil tape.
Question:	Can the flow sensor be bypassed so that it stays on all the time
Answer:	I program it for 85 in the morning and let go back to around 75 in the afternoon before back up to 85 later at night! it's all about comfort. its very easy to program or change program, in the summer I just use it for warm feet in the morning! I just have it in bathrooms under tile.
Question:	how much for bulb replacement
Answer:	Yes, you need to enter the correct resistance, amerage

Product description

Ultraviolet Air Treatment Sys, Coil Plus.

User questions & answers

Question:	What are the dimensions? Specifically, the bulb length protruding into the duct
Answer:	No
Question:	Does the 1059 have the light that shows when lamp needs to be replaced
Answer:	It will stay on all the time but you can easily and cheaply add a switch that senses the air handler has turned on and will then turn on your light. It is available on Amazon for $19.95. CrocSee Miniature Current Switch, CS-TS0, Normally Open Amp Sensor Monitoring Relay, AC 1-50A Detectable
Question:	What size house will this unit cover in square feet
Answer:	Yes. Each unit comes with the two required bulbs along with a template and duct tape strips.
Question:	How does this product (Honeywell UV100A1059 UV Surface Treatment System) differ from the Honeywell RUVLAMP1/C UV Air Treatment System
Answer:	Mine has a UL tag on cord.

Product description

Bio-Shield kills the air contaminants that can cause colds, flu, sinus infections, allergies, asthma and other serious illnesses. Bio-Shield uses germicidal lamps to provide healthy and clean air. The UV-C rays also keeps and eventually removes the bio-film collecting on the air conditioning coils and other a/c parts; greatly increasing the efficiency of the A/C unit. It also eliminates the need for costly duct work cleaning. Uses less electricity than a 25 watt light bulb. Easy DIY Installation.

From the Manufacturer

Bio-Shield kills the air contaminants that can colds, flu, sinus infections, allergies, asthma, and other serious illnesses. Bio-Shield uses germicidal lamps developed by Phillips to provide healthy and clean air. The UV-C rays also keeps and eventually removes the bio-film collecting on the air conditioning coils and other a/c parts; greatly increasing the efficiency of the A/C unit. It also eliminates the need for costly duct work cleaning. Uses less electricity than a 25 watt light bulb. Easy DIY Installation.

• Cleans and sanitizes air by killing bacteria, viruses, Allergan, mold. Uses less electricity than a 25W light bulb. Easy DIY installation
• Kills contaminants that causes colds, flus, allergies, sinus infection
• Reduces A/C costs by removing bio-film on A/C coils making them more efficient
• Eliminates the need for costly duct work cleaning
• Unit includes one 17 inch UV-C lamp

User questions & answers

Question:	How long is the cord as I don't have a plug in AC closet
Answer:	The power necessary to get the correct dosing rate depends on exactly what you are trying to accomplish. Whether this unit is adequate to your needs depends on the geometry of your ducts, the flow rate through them in cubic feet per minute and the log reduction for the bacteria, mold or viruses you wish to achieve. Bulbs like this generally put out 20-30% of their power as UVC light and this is a 9W bulb. The power for this unit is probably only sufficient for a very small HVAC system. Refer to the ASHRAE handbook HVAC applications for specifics on how to determine the power appropriate for your system.
Question:	How long is the power cord
Answer:	This is 110V lamp, can't work in 220V
Question:	Where do you get replacement bulbs
Answer:	It doesn’t have to be compliant because it’s a non-polluting source of light.
Question:	Does the bulb produce uv light and ozone. Also do you place unit in the intake air duct or in the output ducts after the air conditioner/furnace
Answer:	I idea is that if the light “touches” the air it filters or sanitises to bad or dirty particles or kills bad thing in the air. I bought the double just because the price was that different.

Product features

Eliminates Need For Duct Work Cleaning

Three tiers of benefits:

Level 1—HVAC system efficiency:

UV-C eliminates and/or prevents the buildup of organic material on the surfaces of cooling coils, drain pans, and interior duct surfaces. This improves airflow, returns and maintains the heat-transfer levels of cooling coils to 'as-built' capacity, and reduces maintenance.

Level 2—IAQ:

UV-C improves airflow levels and eliminates organic material on surfaces, which helps improve indoor air quality (IAQ) by reducing pathogens and odors. This improves occupant productivity, boosts comfort levels, and reduces sick time.

Level 3—economic impact:

The impact that UV-C has on mechanical systems and occupants translates into substantial economic benefits, including reductions in energy consumption, energy cost, and carbon footprint. On average, UV-C slashes 10% to 25% of HVAC energy use.

Easy Installation

1. Locate Galvanized Duct, and attach mounting template to duct.

2. Drill hole in duct with 2 7/8” hole saw. (Drill Bit Included).

3. Mount unit with 3 screws (included).

4. Insert bulb. Plug Air Sanitizer into power source.

The UVC light continuously cleans the coil and drain pan, making your system run more efficiently. This lowers HVAC energy costs by improving heat transfer and increasing net cooling capacity resulting in less energy use and lower utility bills.

Guards your family 24/7/365 for less than operating a 25 Watt light bulb.

Indoor Air Quality

Most occupants are concerned about indoor air quality (IAQ). Mold, bacteria, viruses, mildew, pet dander and mites are all linked to a host of health problems including eye irritation, headaches, allergies, respiratory problems—triggers for asthma. In fact, the U.S. Environmental Protection Agency (EPA) says these pollutants are often two to five times higher indoors than outdoors!

A/C systems are typically inaccessible and a reservoir for mold, bacteria and slime that can circulate throughout any dwelling. According to the American Academy of Asthma and Immunology, more than 1 out of 4 Americans suffer from these pollutants—and the Center for Disease Control says it’s even higher now! Bio Shield UV-C Air Sanitizer’s (BUVAS) powerful UV-C lamp destroys these irritants.

Product description

D200 In-Duct Dual lamp PCO UV Air Purifier Dual bulbs 7" bulbs, 120v plug in to regular outlet. EPA Est No. 96373-FL-1

• D200 Dual lamp In-Duct PCO UV Air Purifier
• Improve Indoor air quality
• ALL OUR PRODUCTS ARE OZONE FREE
• PHILIPS Brand bulbs made in Europe
• Easy to install

User questions & answers

Question:	Does the bulb use the recommended 254 nanometers
Answer:	The previous version of this product was rated for 6000 CFM. A typical furnace is 2-3000 CFM. If your house is small enough that a single furnace is sufficient, this unit will work.
Question:	Where do I buy bulbs for the unit
Answer:	The only difference I could see while deciding between these two UV lights is the description and the power. The Honeywell UV100A1059 UV is 36 watts. The Honeywell RUVLAMP1/C UV is 18 watts. I decided to get the more powerful unit for about the same price.
Question:	What is the uvc bulbs nm wave length? and what is the voltage does it work on 110-120 volts
Answer:	If you want buy the replacement bulb, please search this ASIN B08HGS9PSX
Question:	You listed this as "ozone free" but photocatalytic filters with uv-c light do create some ozone with them. do you have this listed
Answer:	When we tested in the lab, this bulb had an average life of 8,000 hours. But in actual use, due to different usage environments and different line connections, these may affect the service life of the bulb. (for example, if two identical bulbs are installed in the bedroom and kitchen respectively, and they are used at different time periods, they may have completely different lifetimes). The life of each bulb will be affected by many uncertainties, so I can't say that it must have a life of 8,000 hours, all manufacturers are unable to do this because we cannot prevent uncertainty. But i can say, our bulb quality is very stable, and our production line is the most advanced production line in China. In addition, we strive to provide the best after-sales service to our customers. we provide a one-year warranty for this bulb, if have any questions or problem, just need contact me, send an email to me, I will provide a replacement for free.

Product description

UV LIGHT ultraviolet hvac dual lamp duct . 120v uv-c dual light for a/c duct. 
This is a powerful uvc unit that are rated for Air systems 1-5 tons 
 
PROUDLY DESIGNED IN USA 
 
Installation is very easy 15 min, just cut two 1.75 inch holes in your duct (template included) slip the lamp inside and attach the 4 screws (included in box), then simply plug it in with the 9 ft cord included Dimensions in Duct: 8" Power 120Volts 50/60Hz EPA Est No 96373-FL-1

• ALL OUR PRODUCTS ARE OZONE FREE
• All our units have an electronic ballast and a sight glass to see if unit is on.
• All Our bulbs are germicidal UVC and put out 253.7NM
• Easy to install!
• 2 replacement bulbs included (Total of 4 bulbs inside the box)

User questions & answers

Question:	What is the wattage
Answer:	I wouldn't worry about that with the Friedrich brand. They're the REAL DEAL!
Question:	How many watts
Answer:	you have to press the red highlighted button on the top left
Question:	How does one measure the before/after performance of this product
Answer:	This model does not have a notch however its elastic band is very strong, so a cord can be securely held to the side of the AC unit once the cover is attached.
Question:	Can the bulbs handle really cold air and moisture? I want to install this on the cold side of the coil
Answer:	This cover is held in place by a high quality elastic cord.

Product description

EPA Est. No. 96823-PA-1

• Brand: LSE Lighting - EPA Est. No. 96823-PA-1
• Bulb Type: UV-C 254nm; Base Type: 4pin with mounting flange around the base
• Length: Approx 14", Wattage: 27W; Approx Life Time: 1 year; Glass Type: Quartz Glass Tube; Quality Guaranteed
• This UV replacement lamp by (LSE Lighting) brand is 100% compatible for use with TT-UV24-14 UV HVAC Systems.

User questions & answers

Question:	does the strong ozone smell disapate
Answer:	They are available from Amazon or from the Mr. Scrappy Store website http://www.mrscrappy.com/Products-UV-C_Air_Sanitizer.html
Question:	Is there a warranty
Answer:	As far as I know bulb only produces uv light. I have mine installed just above the evaporator coils because I had read somewhere that it would help kill any mold growing on the coils but you can also install near the return air duct.
Question:	Does this bulb replace bulb vtuvl
Answer:	Yes it is UL
Question:	Can i hook up to 120 volt ac
Answer:	Hi, It must be on 24/7 for maximun life of the bulb.

Product description

The Pure uv unit utilizes a magnet mounting system and a remote mounted power supply. The Pure UV is a PCO UV with activated carbon. The Pure-UV is installed into your home’s HVAC system via a magnet mounting system. easy installation. 16.75" long 2.5" wide EPA Est No 96373-FL-1

• A powerful combination of Ultraviolet light with Activated carbon
• Magnetic bracket for easy installation
• 120V Plug-In power supply

User questions & answers

Question:	How does this install in your system? does it go in the furnace on the ac coil
Answer:	I think I put about 250 pounds on it without any problem, and could likely take another 100 or so more. But it really was just a question of looking nice. For strength it would likely be better to run a couple of 4x4s perpendicular to the roof joints. That would not only spread the weight out better, but also raise it up more. But the Diversitech pad looks much more professional, clean, and very stable.
Question:	Can you install this outdoors in a packaged unit
Answer:	Hard to say. To try it, I put 2x4s under the far edges and stood on it, so it took about 200 lbs without a problem. That was good enough for me. The bottom is a criss cross of support hatching square channels and is not a solid surface like the top is, but it can hold a lot of weight. But I never tried more and risk harming it.
Question:	What is the country of origin
Answer:	It's plastic, don't place anything hot on it, it will melt.
Question:	Does the carbon last and never have to be replaced
Answer:	It's 32 by 32. Measure your compressor and there is your answer.

Product description

120v Power ballast 6ft Lamp cord and 5ft from the ballast to the transformer.

• 120V SMART BALLAST 14" Ultraviolet Cleaner is designed to clean the evaporator coil and surrounding areas.
• 14” UVC Coil Cleaner with magnetic bracket for easy installation.
• Improve energy efficiency
• 120V Electronic power suppy
• Intelligen Voltage Protection (IVP): protects the A/C system from electrical overload

User questions & answers

Question:	Can I install this myself
Answer:	For around $85, some in-duct air purifiers are fairly straight-forward UV bulbs. I found one PCO air purifier (there may be more), and you can search elsewhere for why/how PCO is arguably better than simple UV, with about the same maintenance cost (bulb replacement). RGF's Reme Halo adds ionization, which claims to make airborne particles (that may be unaffected by UV or PCO) more easily trapped by conventional HVAC (approx 1 inch thick) filters. Reme Halo periodic maintenance (bulb + element) costs are higher. If your HVAC has room to install a 4-5 inch thick media air filter, that combined with PCO may be comparably effective for lower initial parts cost (if DIY) and perhaps lower periodic costs, although replacement MERV 11 media is not cheap.
Question:	Can the 24v unit be controlled by the hvac control board, so it turns on/off with the fan/airflow? if so, how
Answer:	They also want a qualified professional to install it and they are the ones that would call for the warranty
Question:	Is this uv light ozone free
Answer:	Yes 253.7NM
Question:	Is there a replacement bulb
Answer:	ORIGINAL OEM Replacement UV Light bulb for Best Deal UV D200 R18 R18D https://www.amazon.com/dp/B01MSZAFQ4/ref=cm_sw_r_cp_apa_i_958jCb3TB7RF1

Product description

24 VAC SMART BALLAST 14" Ultraviolet Cleaner is designed to destroy and prevent mold_and other microbial growth (e.g. viruses_bacteria_germs, etc) on the evaporator coil and surrounding areas. 14" UVC Germicidal Coil Cleaner with the magnetic bracket for easy installation. Destroys mold_and their associated odors on the coil Improve energy efficiency 120v Electronic power supply Voltage Protection (IVP): protects the A/C system from electrical overload. Includes a 6ft lamp cord with a plug to connect to a 110V outlet and a 5ft cord from the ballast to the transformer. Feel free to contact us for any questions. This bulb is germicidal UVC and put out 253.7NM Which means that they are 99% efficient on a single pass. Ozone free.14” UVC Germicidal Coil cleanser with magnetic bracket for easy installation. Key Features:

- STERILIZE

- PURIFIES THE AIR

- DEODORIZES (You will feel a cleaner air!)



EPA Est. No. 97544-CHN-1.

This lamp CANNOT be connected to a 110V power source because it will be damaged instantly, and it will not be covered under our warranty! If you are not sure how to install it, please hire an electrician! This is the perfect Air Purification System for any A/C system (up to 5 tons).

• Our bulb's wavelength is 253.7NM which means that they are 99% efficient on a single pass.
• This lamp's key functions are: STERILIZE THE AIR PURIFIES THE AIR, DEODORIZES (You will feel a cleaner air!).
• Magnetic bracket included for easy installation (no drilling necessary).

User questions & answers

Question:	Is this non ozone
Answer:	The 5220 model is a two stage thermostat, two stage for heating (gas furnace) and two stage cooling (AC). I think the single stage is for a heat pump option.Have had two of these installed for approx one year in a 2-story house, one for upstairs, one for downstairs.Running both only for gas furnace heating, don't have AC installed.Bought them specifically to program them to turn on the second (high) stage of heating later than furnace default settings.If you are buying for two stage operation, make sure you have enough thermostat wires to run two stage operation.Both have worked great for me.Good luck!!!
Question:	Is this 24V or 120V
Answer:	thank you for your attention,this model T21STK-0,do not have emergence heat function,you can make choice between T21HTW-0 and SAS6000UTK-7.
Question:	Is this a G500 24 volt bulb
Answer:	Thank you for your attention,the lowest temperature can be setting at 45ºF.
Question:	Have only area for install bulb, between turbine and heater elemen, what distance need from heater element
Answer:	re: T21STK-0 bought aug 2018: P. 25 of manual: CC is cooling cycle rate; HC is heating cycle rate; H0 is heating type 0-gas,oil, electric 1=heat pump; bL is back light; FL is filter change reminder time in months; FC is F or Celsius; CL is temp calibration point; CP is compressor lockout delay.