What’s the Right Setting for Your Cary HVAC? On, Off, Auto?

You probably already know this, but the thermostat in your home has three main settings: off, on, and auto. Most of us rarely use the "off" setting unless it's one of those highly coveted, beautiful 70 degree days. But do you know when you should set your thermostat to "auto" versus "on?" Today we'll discuss what each of those settings mean and what the right setting is for your Cary HVAC.

Auto vs. On

Setting your thermostat to "AUTO" means that the fan in your Cary HVAC only turns on when your furnace or air conditioner is in operation mode. Once your desired temperature is reached, the system shuts down until the next cycle.

Setting your thermostat to "ON" means that the fan in your Cary HVAC will run and blow air continuously even when your Cary HVAC system isn’t heating or cooling the air.

Is one setting better than the other? Which one is more efficient? Well, let's look at each one a little closer.

Set your Cary HVAC fan to AUTO if you're energy-efficiency

If you're looking for the most energy-efficient way to heat or cool your home, use the auto setting. The fan will only operate when your home needs to be heated or cooled and ultimately will save you money on your energy bills.

The auto setting will also allow your home to dehumidify naturally. Once the desired temperature is met, the fan turns off and any moisture from the cooling coils can drip and drain outside. If the fan is running continuously, that moisture never has a chance to drain and creates more humidity inside your home.

All that said, the one disadvantage to using AUTO is that your blower motor does have to work harder since it's starting and stopping more often. As such, you absolutely want to make sure that you schedule regular tune-ups to avoid motor burn out.

Set your Cary HVAC fan to ON if you want less stress on your system

Setting your Cary HVAC fan to ON is not the most energy-efficient way to operate your system. However, it does cause less stress on the mechanics of your system since the blower is not having to cycle on and off.

By having your HVAC fan continuously circulate air throughout your home, you're more likely to reduce hot or cold spots as you move from room to room. If hot and cold spots is a common problem in your house, you might experiment with the ON setting to see if it helps.

However, operating your fan all the time may mean that you need to replace your air filters more often. The more air pushed through the filter, the faster it will clog and hold dirt or other pollutants. So, while you may save money on one end, you'll likely spend more money on air filters.

What's the right setting for your home?

Like all things, the right setting for your home depends greatly on a number of factors: age of your home, age of your system, number of floors and/or the layout of your home, and the comfort settings of your family. What may be right for one family won't work for another, so it's important to operate your system in such a way that it meets the needs of your home.

You can start by checking with your system’s manufacturer's guidelines. Obviously, if you have the original manual or system documents, that's a great place to start, but most manufacturers also put this information on their website. These will provide guidance on the best way to achieve maximum efficiency from your Cary HVAC.

We are also happy to work with you to ensure your equipment is working properly and is providing you with both maximum efficiency and savings. If you have any questions about how to get the most from your Cary HVAC, give Choice HVAC a call at 919-435-2711.

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