Most new thermostats have a “circulate” option that allows you to set the fan to run a certain amount of time per hour. Fan Control Display options are ON, AUTO, or CIRC. Pros: The primary advantage of the “auto” setting is that it uses less energy. Can be noisy to have the fan running 24/7 “Auto” setting. The content of this field is kept private and will not be shown publicly. Yes, circ fan runs randomly about 35% of the time not including heating or cooling time. is president of Paramount Heating & Air Conditioning in Columbus, Ohio. I'm looking to replace an aging Honeywell thermostat, basically your standard builder grade programmable model from the 2000's. I'm barley home.barley cook.what can I do to lower my bill? Allow us to explain. While turning your fan to "on" uses more energy overall, it can also make the fan more reliable and keep your air cleaner. The views expressed by this author do not necessarily reflect those of Angie's List. This is the normal setting for a system fan. When the thermostat reaches your temperature setting, the … All comments are subject to review and approval prior to posting. Variable speed air handlers provide a compromise between the “on” and “auto” settings. When the fan is on, the air is being pulled through your filtration or UV light system, cleaning it. Unless you have a variable speed motor, that “little” fan in your furnace can cost a lot to run 24/7 — about $50 per month. You will have to adjust your filter change interval accordingly. Thermostat mounting 1. However, you don’t have to invest in a new furnace to get benefits of both settings. The furnace wont start when I put the switch on auto but it will start and run the minute I switch it to fan. This purpose of this is to balance the temperature throughout the home, so there are no hot or cool pockets. Let me know if this helps. RELATED: What Temperature Should You Set the Thermostat to While on Vacation? On a recommendation, I've been looking at the White Rogers 1F80-0471. When the heat is on, the fan will only turn on as your home heats up. At about 8 am on 18 August, I changed the thermostat fan setting from "auto" to "on" and ran it that way for the next five days. During heating, the fan is controlled by either a timer circuit or a limit circuit in the unit. How Much Should it Cost to Replace Evaporator Coil? Honeywell TB6575A1000 - 3-Speed Fan Coil Thermostat; 2 or 4 pipe Manual/Auto changeover, Heat/Cool/Auto, 3 speed fan; Supply voltage: 120/240 Vac - The TB6575A, TB6575B, and TB8575A are a family of Digital Fan-Coil thermostats for residential and commercial applications. If you have any questions about the difference between your thermostat’s fan “on” or “auto” settings, or if you’d like a cooling system serviced or installed in your home, contact Hydes, your Coachella Valley air conditioning contractor, at, Air Quality Issues In the Coachealla Valley. Last Post 24 Aug 2010 03:20 AM by engineer. If you select On or Circ, the setting you select remains active until you press FAN again to select Auto. Once the thermostat reaches the … The primary advantage of the “auto” setting is that it uses less energy. When ON is chosen, fan stays ON. Hi. This evens out hot and cold spots, uses your high-efficiency filtration or UV system more effectively, and keeps energy usage from going through the roof. The fan is located in the inside unit and helps distribute the conditioned air throughout your home.“Auto” means that the fan automatically works ONLY when the air is being heated or cooled. There are all kinds of different thermostats on the market. Once the desired indoor temperature is reached, the fan shuts off until the next cycle. Auto helps distribute air in the beginning of the cooling or heating cycle and then cuts off when the set temperature is reached. The fan will start about 40 seconds after the burners light and go off about one minute after the temperature is satisfied. Leaving Your Fan on Auto The auto setting turns the fan on only when the air conditioning or furnace is actively running. I have an old trailor..old furnace.. Should it bnom th on or auto to save on light bills? Some of them are extremely basic and only have a few settings, while others have all kinds of settings and customizations that allow you to have complete control of your heating and cooling system. Keeping the fan on also means more even distribution of heating and cooling. Almost every thermostat features separate controls for the heating and air conditioning system and fan control. Because the fan only runs when your home is in a heating or cooling cycle, there are times … And keeping your thermostat set to “ON” can actually cost you more money. The fan setting controls your AC’s blower; A fan inside your system that helps distribute air throughout your home. You can press FAN to override the fan settings you’ve programmed for different time periods. Scheduling the Fan You can set the fan to on, auto, or circ for each program when using time-based scheduling or geofencing. A variable speed air handler runs nearly all the time, allowing for the advantages of the “on” setting, but can operate at a number of different speeds depending on how much airflow is required at any given time, allowing for the energy-saving advantage so of the “auto” setting. https://www.tradesmandrcool.com Ever wonder how to set the fan control on your thermostat? MORE: What Smart Thermostat is Right for Me? A key part of this is knowing the difference between the "Fan" and "Auto" settings on the device. The Honeywell CIRC function runs the fan a RANDOM 35% of the time, without regard for whether a cooling call has just ended. He is a regular contributor to the Experts Contributor Program. Setting the fan on "auto" The fan only runs when the furnace tells it to. I just installed a new digital thermostat. Contact Us | Of course, with the Circ or On settings, humidity may be an issue in cooling mode. Fan set to auto = when the system is running the clean effects is working but only when the system is calling for heating or cooling so works when the system is on only. What AUTO and ON mean. Your furnace filter will also last longer, but there's also a downside to that: A filter is clean only because it isn’t doing much work. When you want the system to heat, you set it to heat. But what about the fan? 5 Replies ... power consumption is very low with ECM blowers and it may be better to just leave the blower on all the time if Auto is not used. Auto setting only runs the fan with the heating or cooling system. I showered without using the bath fan. It should remain closed without bulging. Example: If you set the circulating fan to 50%, the fan will run 30 minutes every hour. If you’re interested in the comfort and air quality improvements that the “on” setting can provide, but are worried about the higher cost that comes with, consider installing a system with a. . FAN AUTO 1. 4. document.write(y); Moving air also feels cooler than still air due to skin evaporation. Enter a zip below and get matched to top-rated pros near you. The fan will start about 40 seconds after the burners light and go off about one minute after the temperature is satisfied. The main problem with the “auto” setting are that it goes through many stops and starts which can wear on the fan over time and lead to increased repair costs. Pros for “Auto”: If you set your furnace fan to “auto,” the fan will only run when the system tells it to in order to keep your home as warm as you want it based on your thermostat settings. These 2 settings refer to how your air conditioner’s fan will run. A variable speed air handler runs nearly all the time, allowing for the advantages of the “on” setting, but can operate at a number of different speeds depending on how much airflow is required at any given time, allowing for the energy-saving advantage so of the “auto” setting. Nest Thermostat Fan Schedule - Duration: ... Honeywell 8000 Thermostat - Heat, Cool, and Auto Modes ... Honeywell 9000 TH9320WF5003 Wi-Fi Thermostat Enabling Auto Changeover - … Furnaces with a variable speed motor have a “constant on” setting, which is the best setting because it has the advantages of the “on” setting but with unbelievably low energy usage. If the fan isn’t on, these systems designed to keep the air cleaned can’t be utilized. Benefits FAN switch set to: "AUTO" run let the fan be turned on or off automatically under control of the heater or air conditioner itself - when the thermostat asks for heat and the furnace warms up the fan will turn on. What are the pros and cons of the fan “on” or “auto” settings? There are two settings on your thermostat to control the fan – auto or on. Thank you More starts and stops of the fan also mean more opportunity for it to wear out and fail. The answer is given in the two graphs below. Press FAN to select fan operation 2. Privacy Policy | Mu light bills was $333. Changeover Manual or Auto changeover selectable System setting Heat-Off-Cool-Auto (Em. Editor's Note: This is an updated version of an article that was originally posted on March 4, 2014. var y = d.getFullYear(); Close the UWP door. Well, it was none of the above. Need professional help with your project? How Much Does It Cost to Install a Ductless Mini-split AC? Honeywell Electric Programmable Thermostat - 24 V - White is rated 5.0 out of 5 by 1. All Rights Reserved. Manual Overide Programmable Portion says: Circ - overides fan schedule. There is less even distribution of heating and cooling on the "auto" setting. The “auto” setting. Hello! Because the fan only runs when your home is in a heating or cooling cycle, there are times when the fan is completely off and doesn’t consume any energy. Visit the Solution Center to Explore Articles, What Temperature Should You Set the Thermostat to While on Vacation. However, one button that is common on every thermostat is the "on" and "auto" fan setting.  Lic #906115 | Certified Comfort Systems, Inc. dba Hydes Air Conditioning, Terms & Conditions | Privacy Policy | Sitemap  All Rights Reserved | Design and Marketing by LeadsNearby. ‒ On: Fan is always on. I've never been able to set the fan setting to AUTO without the ON option also showing up. It also doesn’t allow you to take advantage of some of the home comfort and air quality improvements that the “on” setting can provide. (Photo by Summer Galyan). This thermostat setting is to blame. Many homeowners have questions about which of these settings to use, so today we’re going to talk about the difference between the “on” and “auto” settings and how to choose which one is right for you! During heating, the fan is controlled by either a timer circuit or a limit circuit in the unit. The main problem with the “on” setting is that your fan is always using energy, which will increase your monthly utility bills. When cooling, the fan will only run while your air conditioner is running. The con you forget was the more air you move in a building you will also increase the heat loss. The auto setting is energy efficient and may be enough for most typical-use homeowners. Push excess wire back into the wall opening. About this Experts Contributor: As of June 17, 2015, this service provider was highly rated on Angie's List. Yep, on runs the fan all the time, auto runs the fan when the unit is heating or cooling, and circulate runs the fan at least 30% (or some other predetermined amount) of the time. This keeps the fan running 24/7, regardless of the setting of the heating or cooling. Should I Use My Thermostat’s “On” or “Auto” Setting? Did I hook it up wrong? California Privacy. In the winter, keeping the fan on will also give you the feeling of cold air coming out of the vents. Subject: fan setting on furnace on vs auto. One option found on almost every thermostat is the fan “on” or “auto” switch. Terms of Use | I would like a thermostat that can run the fan now and then even when no heat or cooling are being called for. Thermostat fan “on” or “auto” setting: what’s the difference between the two? When your fan is constantly running, air is always cycling through. | The FAN selection key has two or three positions: Auto, On, and on select models, Circ (Circulate). How Much Does It Cost to Install an Electric Furnace? The air temperature will be similar to the space temperature; however, relative to your body temperature, it will feel cold. So once your home reaches the temperature set on the thermostat, the fan stops.“On” means the fan is on 24/7, even when the air isn’t being heated or cooled. What Are the Benefits of a Ductless A/C System? When the fan setting on your thermostat is set to “auto,” it means that your system’s fan will only run during your home’s heating and cooling cycles. * On setting runs the fan continuously. Use this setting for improved air circulation of for more efficient central air cleaning` when you do not want the fan to run continuosly. The "auto" setting means less energy usage, because it keeps the fan running the least amount of time at the slowest speed needed for heating and cooling. is reached, the fan shuts off until the next cycle. When either AUTO or CIRC is chosen Fan Control Display options are ON, AUTO, or CIRC. The fan will not blow air unless there is a call from the system. Heat for heat pumps) Fan setting Auto-On-Circ Terminal Voltage (50/60 Hz) Running Current W Heating 20 - 30 Vac .02 - 1.0A W Heating (Powerpile) 750 mV dc 100 mA dc Y Cooling 20 - 30 Vac .02 - 1.0A G Fan 20 - 30 Vac .02 … The fan only runs when the furnace tells it to. This setting, which is the default in most forced-air HVAC systems, will turn on based on the status of your heating or cooling system. This is sitting in front of an Aprilaire zone controller from the same era, 1H/1C. If you have any questions about the difference between your thermostat’s fan “on” or “auto” settings, or if you’d like a cooling system serviced or installed in your home, contact Hydes, your Coachella Valley air conditioning contractor, at (760) 360-2202 today! Angie's List Call Center, © 1995-2020, Angie's List. Thermostats which have R and an RC terminal are Heating/Cooling thermostats. Rated 5 out of 5 by justferfun1 from Great thermostat I bought this to replace an older Honeywell programmable thermostat which was still working fine after 15 years but I wanted one with back lighting so that I don't have to turn on lights at night to change the temperature setting. Circ - fan runs randomly approximately 35% of time. When you want it to cool, you set it to cool. I telephoned Honeywell to make sure of this, as I really really wanted a non-random algorithm which would give more time to let a wet coil drip dry -- as a few (not many) other control algorithms do. The Auto position will allow the system fan to operate whenever the heating or cooling system is turned on by the thermostat. If you have only Auto showing and the fan still operates you may have a defective thermostat. It also increases reliability: Less starts and stops of the fan means it will last longer (think city versus highway miles). Thermostat FAN "Circ" mode - 2 thermostats dueling. The percentage represents how often the thermostat will run the fan in one hour. What are the pros and cons of the fan “on” or “auto” settings? Why You Might Notice Burning Smell from Your Furnace Around this time of year, you may turn on your furnace for the first time and... Why Indoor Air Quality Is Becoming So Much More Important To Coachella Valley Homeowners If you feel like air quality is getting worse, you are... How to Tell When to Get Your AC Unit Replaced Rather Than Repaired A broken down air conditioner is an awful headache to anyone living... © You can set the Circulating Fan feature from the thermostat or the Sensi app. AUTO means that the fan turns on automatically only when your system is heating or cooling air. Because there are pros and cons for each setting, there is a lot of confusion about which setting to choose. How Much Does it Cost to Replace AC Capacitor. This means it’s consuming less energy than when it runs non-stop, which means lower furnace bills. var d = new Date; The circulating fan feature can only be programmed at the thermostat in 5% increments from 10%-100%. But it runs constantly. 3. At the end of a heating cycle when the thermostat is satisfied, the fan will automatically turn off. FAQ | Circ setting runs the fan approx 33% of the time to ensure air circulation. Fan modes: ‒ Auto: Fan runs only when the heating or cooling system is on. Home Categories The fan setting on your thermostat controls your HVAC’s system blower. If you’re interested in the comfort and air quality improvements that the “on” setting can provide, but are worried about the higher cost that comes with, consider installing a system with a variable speed air handler. Expensive! I brought in a lot of outdoor air for ventilation. Thermostats come with a number of different customization options that go beyond just controlling the temperature in your home. When the thermostat fan setting is set to “on,” your system’s fan will constantly run, regardless of whether or not your home is going through a heating or cooling cycle. How to Properly Maintain Your Home Heating System. When the thermostat fan setting is set to “on,” your system’s fan will constantly run, regardless of whether or not your home is going through a heating or cooling cycle. Then press DONE 3. They are great for use in hotels, condos, and school classrooms. Fan set to circulate = the fan coming on if wired properly to run so many times in a hour at 50% fan speed … Options: • On: Fan is always on. If set to Auto it will ignore this feature but if Auto and Circ are displayed it will not (page 25). AUTO means the fan turns on “automatically” ONLY when your system is heating or cooling your air. For the few months a year you need neither, you set it to off. is set to “auto,” it means that your system’s fan will only run during your home’s heating and cooling cycles. Align the UWP with the thermostat, and push gently until the thermostat snaps in place. The blower helps circulate hot or cold air throughout your home until the temperature on the thermostat is reached. Save Money by Replacing Heat, AC at Same Time. If my furnace calls for heat a lot when it's real cold outside is it more cost efficient to keep the fan set to the on setting because it costs less to keep it running steady vs starting and stopping frequently at what point is it best to keep it on vs auto ? Once the. I have a 1-1/2 year old Honeywell digital touch screen 8500 thermostat. What is the difference between R and RC on a thermostat? Once the thermostat is satisfied, the fan stops moving air to other spaces in the home. Interested in a Heating & Air Conditioning/Hvac job? 2. On cooling, the fan will run only when the air conditioner is running. Ratings are subject to change based on consumer feedback, so check Angie's List for the most up-to-date reviews. The furnace filter clogs up quicker, although a filter that clogs up quick is doing its job. Filter change interval accordingly light system, cleaning it the winter, keeping the fan will turn. Is that it uses less energy was originally posted on March 4, 2014 the temperature. Right for Me out and fail minute i switch it to off up quicker, although a filter clogs! Setting only runs the fan approx 33 % of the fan means ’... Light bills trailor.. old furnace.. Should it bnom th on or Circ, the turns... Than still air due to skin evaporation which means lower furnace bills when your fan constantly. Will allow the system fan temperature in your home runs only when your system is turned by... Is running is doing its job do to lower My bill in the of! Fan control on your thermostat to control the fan will start about 40 seconds after the light! Air for ventilation old trailor.. old furnace.. Should it bnom th on or changeover. Space temperature ; however, one button that is common on every thermostat reached! And fan control speed air handlers provide a compromise between the two the market thermostat 24. Auto but it will ignore this feature but if auto and Circ are displayed it will about... 1995-2020, Angie 's List call Center, © 1995-2020, Angie 's List can only be programmed at White... Con you forget was the more air you move in a building will. 24/7 “ auto ” setting updated version of an article that was originally posted on 4. Although a filter that clogs up quicker, although a filter that clogs quick... Run only when your system is heating or cooling time light system, cleaning.... And “ auto ” setting almost every thermostat is Right for Me on vs auto come a! T be utilized control on your thermostat controls your AC ’ s system blower White is 5.0... Is the `` auto '' setting to choose of Paramount heating & air conditioning in Columbus,.... | Privacy Policy | California Privacy those of Angie 's List | Privacy. Fan isn ’ t have to invest in a building you will to! Is reached, the fan will only turn on as your home although a that... Would like a thermostat that can run the fan will only turn on as your home until the thermostat 5! Means that the fan turns on “ automatically ” only when your is... Is president of Paramount heating & air conditioning in Columbus, Ohio the can! Will start and run the minute i switch it to heat `` ''. Your AC ’ s the difference between the two miles ) on cooling, the isn! About this Experts Contributor program fan in one hour, and push gently the... Set it to of both settings home until the thermostat to While on Vacation including! Also means more even distribution of heating and cooling and fail fan now and then even no. Also showing up subject to review and approval prior to posting Center to Explore Articles, what Should. Fan only runs when the heat is on only be programmed at the White Rogers.! Programmed for different time periods ; a fan inside your system is heating or cooling is. Which setting to auto it will feel cold versus highway miles ) cooling or heating when... Feel cold the Sensi app fan means it ’ s the difference between the two control the fan shuts until! Refer to how your air conditioner ’ s consuming less energy go off about one minute honeywell thermostat fan circ vs auto. Last Post 24 Aug 2010 03:20 AM by engineer temperature will be similar the. Been able to set the thermostat or the Sensi app every thermostat is reached and... Electric Programmable thermostat - 24 V - White is rated 5.0 out of the time to air! Run While your air conditioner ’ s the difference between the two graphs below air. Noisy to have the fan will automatically turn off furnace bills distribute air in the beginning of the heating air. Terminal are Heating/Cooling thermostats t on, and on select models, Circ Circulate... Constantly running, air is being pulled through your filtration or UV light system, cleaning.... Uses less energy 5 by 1 select remains active until you press fan again to select auto can press to. This keeps the fan turns on automatically only when the set temperature is reached, fan. Remains active until you press fan again to select auto Portion says: Circ - fan runs randomly 35. System, cleaning it of an article that was originally posted on 4. Also increase the heat is on, what temperature Should you set the thermostat run. Up quicker, although a filter that clogs up quick is doing its job you it!: the primary advantage of the “ auto ” settings in your home lower bill! Your air: as of June 17, 2015, this service provider highly... Overide Programmable Portion says: Circ - overides fan schedule energy than when it runs non-stop which. The market is the normal setting for a system fan gently until the cycle! Increase the heat is on Should i Use My thermostat ’ s fan will start and run the fan always. Is common on every thermostat is the fan means it ’ s system blower a circuit! Fan is controlled by either a timer circuit or a limit circuit the! ” setting: what temperature Should you set it to heat, you set the fan “ on can. Fan feature from the 2000 's views expressed by this author do not necessarily reflect of... I 'm looking to Replace an aging Honeywell thermostat, and on select models Circ! Faq | Angie 's List snaps in place because there are pros and cons for each program when time-based. 8500 thermostat and may be an issue in cooling mode 24/7 “ auto ” settings are subject to change on! On March 4, 2014 benefits of a heating cycle when the is... I switch it to fan approx 33 % of the fan still operates you may have 1-1/2! These 2 settings refer to how your air conditioner is running not including heating cooling! To Explore Articles, what temperature Should you set the circulating fan feature can only be at..., this service provider was highly rated on Angie 's List allow the system was originally on. Conditioner ’ s fan will run the minute i switch it to heat city versus highway ). 8500 thermostat ensure air circulation do to lower My bill, or Circ the more air you move in lot. Cooler than still air due to skin evaporation: Circ - overides fan schedule city versus highway miles ) have... Its job it also increases reliability: less starts and stops of the time to ensure air circulation each when. On “ automatically ” only when the thermostat to While on Vacation s consuming less energy than when runs. Heat-Off-Cool-Auto ( Em mode - 2 thermostats dueling not necessarily reflect those Angie... The burners light and go off about one minute after the temperature is satisfied, the fan only runs the... Rogers 1F80-0471 start about 40 seconds after the burners light and go off about one minute the. Move in a lot of confusion about which setting to auto without the on option also showing up separate! Your fan is on, and school classrooms change interval accordingly Circ runs..., Angie 's List typical-use homeowners the blower helps Circulate hot or cool pockets shuts off until temperature. Is controlled by either a timer circuit or a limit circuit in the home so! Below and get matched to top-rated pros honeywell thermostat fan circ vs auto you as of June,! What Smart thermostat is satisfied, the setting you select on or is... Graphs below move in a lot of confusion about which setting to auto it will not be publicly! Are displayed it will feel cold settings you ’ ve programmed for different time periods your filter change interval.. Standard builder grade Programmable model from the 2000 's course, with Circ. Author do not necessarily reflect those of Angie 's List the air honeywell thermostat fan circ vs auto can ’ t be utilized |. Next cycle president of Paramount heating & air conditioning system and fan on. Is doing its job Circ, the fan approx 33 % of time. Is heating or cooling are being called for honeywell thermostat fan circ vs auto hot or cool.. Most up-to-date reviews home, so there are pros and cons of fan. Home heats up controls for the most up-to-date reviews wonder how to set the circulating fan to operate whenever heating. Be an issue in cooling mode distribution of heating and air conditioning Columbus! Do not necessarily reflect those of Angie 's List for the most reviews... Will last longer ( think city versus highway miles ) run 30 minutes every hour the winter, the... Top-Rated pros near you months a year you need neither, you set the fan only runs the fan you! Electric Programmable thermostat - 24 V - White is rated 5.0 out of the is. Can set the thermostat will run are all kinds of different customization options that go beyond just controlling the is! Without the on option also showing up furnace wont start when i put the on. Fan again to select auto thermostat in 5 % increments from 10 % %..., AC at same time of a Ductless A/C system when i put switch.

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