furnace fan on auto or circulate in winter

| December 10, 2020

Last time I replaced a thermostat, I got an Aprilaire that has a ‘circulate’ timer. The big advantage of using the AUTO setting is that you are conserving energy – and for the environmentally conscious person, emitting less greenhouse gases is always a good thing. Your furnace will run as needed to keep your home the set temperature, but whether you keep the fan set to ON or AUTO is a choice of cost vs. comfort. it means the blower will run when the furnace/air cond kicks in, but not at other times. Continuous mode – which allows the fan to run all the time, even when the furnace is not engaged – has only one minor drawback. Should it be set to AUTO so that the fan only turns on when there’s a call for heat? Some people will run their furnace fan all the time to help circulate the air throughout the home. running the fan only on the furnace helps even out temps in the house. 2. The fan can be controlled through a timer circuit inside the unit. When I want to recirculate the air (say the basement is cold in the summer, but its not cold enough to justify running the ac, I put it on to "on" which makes the blower run constantly. The pros of leaving the thermostat are: Keeping the heat rounded up more evenly throughout the house. i am just trying to run the furnace fan occasionally as the front rooms warm up and not 24/7. The fan setting either auto, on or circulate all do different things. Unless you have areas in your home that are problematic for condensation and poor air circulation, seasonal … While the “on” and “auto” settings do not affect the cooling capabilities of the unit, one is far more energy efficient than the other. Your furnace filter will last longer. Or even a furnace replacement if it’s left for too long. But is it a good option for circulating air in a house and can it help redistribute air and reduce reliance on a furnace or A/C system?. It uses electricity to keep the fan running and therefore causes slightly higher electric bills. The nice thing abotu the circ fan mode on some fo the White Rodgers, it won't circulate the fan for the first 60 minutes after the equipment has run. The “Auto” setting means your system will turn the fan on when it needs to circulate heated air, and “On” will force your fan to run nonstop. Setting the Circulating Fan in the Sensi app. I use auto most of the time. That’s a significant savings! When your fan is on “AUTO,” moisture is able … That is a furnace setting. The fan’s “AUTO” setting works with your heating + cooling system, so your fan is running the least amount of time needed, at the slowest speed. Some studies have shown that simply reversing your ceiling fan in the winter can lower heating costs by as much as 15%! The furnace may continue to run the fan for several minutes after a call for heating or cooling to expel any hot or cold air remaining in the ducts. If you have only Auto showing and the fan still operates you may have a defective thermostat. This is set to Auto by default, meaning that the furnace will decide when to disengage the fan after a heating or cooling call. If heat or AC has not been used for an hour, the stat will run the fan for 15 minutes and then restart its timer. Most thermostats today come with an option to keep the furnace blower fan running continuously. Avoiding The Chill It is considered OK to continuously run a furnace fan. Not sure if the furnace fan will do ok without an A/C unit. When using the auto setting, your fan will kick in either when a timer or limit circuit tells it to. 1. Most HVACs have an option for the fan in ‘auto’ or ‘on’ positions. Cleaner air quality. Thermostat fan on or Auto in winter Furnace fan on auto or circulate. At Rick’s Heating & Cooling , we are always looking out for residents within the Morrow and Lebanon, Ohio area when it … Once the desired indoor temperature is reached, the fan shuts off until the next cycle.. Reply Your HVAC fan setting can have big implications for your indoor air quality, comfort and energy efficiency. In the summer, to get the wind-chill effect, the blades need to run in a counterclockwise fashion. However, a furnace fan that won’t stop running can also be a byproduct of a faulty fan limit switch or one that is set to manual override. my wood insert is on one end of my 2400sq ft cape cod style house, so back rooms are obviously going to be cooler. If you need to, switch the fan to run in the clockwise direction to enhance heating. I have two 1F95-1291's on my systems and like to overall operation. Whether your furnace fan is set to Auto or ON at the thermostat has nothing to do with the HRV. Better dehumidification. The fan will keep running even when there’s no heat being produced, which at times causes cold air to circulate − a no-go during frigid Toronto winters! Your HVAC has a component that creates cool or heated air and another that moves that conditioned air. Advantages of AUTO on your Thermostat. The ‘Auto’ thermostat function will make the fan run according to your specified settings. When your fan is set to auto in cooling mode, your fan will come on with the air conditioner until the thermostat gets to the desired temperature and then shut off. Homeowners should experiment to see if it works best for their home to have the furnace fan running continuously or not. 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. Whether you like to keep it extra chilly or adjust the thermostat to save on your utility bills, there's another important choice besides your desired temperature. My older thermostat only had on and auto, and I can’t figure out what circ is for. The fan is turned off about a minute after the desired temperature is reached. By reversing your ceiling fan to blow air up, this warm air is redistributed throughout the room. The heating equipment can operate with either an on or auto setting. Yes, circ fan runs randomly about 35% of the time not including heating or cooling time. If set to Auto it will ignore this feature but if Auto and Circ are displayed it will not (page 25). 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. What is the difference between circ and auto settings for the fan on my HVAC thermostat when the heat is on, when the a/c is on, and when both of those are off? The claimed benefits are reduced stratification and improved AQ (more trips through the filter). my returns are mounted next to the ceiling, so they are actually ideal for this. This redistributes the heated air and thus warms the entire room. How to Use a Ceiling Fan in the Winter and have seperate wall controls allowing for "continuous" or "auto" fan. The pros of leaving the thermostat fan on auto are: Less expense upfront in the form of power consumption and fewer filter replacements. When the heat is on, the fan will only turn on as your home heats up. Energy-Efficient Thermostat Recommendations for Heating. When your furnace is cycling on and off, it's called furnace short cycling. 1 - Low Airflow. Both are about 1 yr old. If you don’t want to make personal lifestyle changes, here are some things you can do to make sure your home stays warm and comfortable during fall and winter: 1. However, the increase is minimal, and with high efficiency motors you may not even notice a difference in your bill. With the ‘Auto’ setting, your furnace fan runs when it receives a signal from your thermostat. Example: If you set the circulating fan to 50%, and your furnace runs for a total of 15 minutes during that hour, the fan will only run independently for 15 minutes at the end of the hour. If You Have a Fireplace or Wood-Burning or Pellet-Burning Furnace… First, if you also have forced air, turn the fan on to help circulate … I would like to use the fan with a high quality air filter and mix the cool basement air with the warm air of the second story bedrooms and hallway. Let me know if … These systems are usually “closed loop systems,” which circulate conditioned air (heat or AC) throughout the home via ductwork and vents in … What Does the ‘Auto’ Setting Do? Circulate is Auto plus a random On when the fan would normally be off for a total of 20 minutes per hour, Follow shedule appears to be some magically derived random quotient, either on, auto, or circulate depending where in the schedule the system is at Confound these new fandangled appliances and gizmo's! Circulating Air with Furnace Fan. In the summer, this gives the evap coil time to drain before the fan comes on. Below we go over some of the more common causes why this might be happening. Generally, the auto setting will start the furnace fan about half a minute after the burner is lit. Thermostat fan “on” or “auto” setting: what’s the difference between the two? I know that “on” turns the fan on so that it runs continuously whether the heat is on, the a/c, or nothing is on. Proper Fan Settings Put You in Control of Indoor Air Quality. If your furnace keeps shutting off, it could be due to low airflow. thanks for the quick responses. On Mode "On" means on, the furnace fan runs continuously unless you shut it off or go back to "Auto" mode. The AUTO setting. There is no one right answer. Tap on the thermostat you want to adjust. Air circulation keeps them moving, so he recommends this for the next few weeks: Change your fan from auto to on. This is the setting that most fans use automatically. My older oil furnace does not have A/C . When the fan is running in "continuous " mode the fan speed is the same as when blowing heated air. 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. People often have questions about the proper furnace fan setting for winter. Test your fan by turning it on and identifying the fan’s direction. Can be noisy to have the fan running 24/7 “Auto” setting. ON mode = Fan is on all the time; Let’s also assume we’re talking about a central air system with a blower motor (fan) located inside the home. In fact, running your furnace fan constantly may even save you money since having more even temperatures in your home may result in the heat or air conditioner running less. 3. It has moisture but is always around 55°. Tap the Fan Mode icon. Should the furnace fan always be ON—constantly circulating air? Without air circulation, particles settle in your home. If you don't have a control board in the furnace, you will need to look for a fan/limit switch on the unit. You can adjust the temperature by changing the setting on the thermostat and the air movement by setting the fan to ‘auto… If homeowners find this is beneficial, it is generally suggested to only run the furnace fan … I have a nice dehumidifer I will run also. 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