As your local HVAC experts right here in St. Louis, we understand that the transition from fall’s crisp air to winter’s chill can leave homeowners pondering that crucial question: when is the right time to fire up the furnace? It’s a balancing act between staying comfortable, keeping energy costs in check, and making the most of the milder days that sometimes linger in our Missouri autumn. Let’s explore some key factors to help you decide the optimal moment to turn on the heat in your St. Louis home.
Key Factors to Consider Before Turning on the Heat
Before you reach for that thermostat, take a moment to consider these important elements specific to St. Louis:
Tracking the Weather Forecast and Local Climate
Lower humidity levels – air that contains less moisture – can make your home feel colder than it actually is. If you live in a less humid climate, your home can feel more chilly due to dry air. But if you live near a body of water, your home is more likely to feel colder sooner. If you’re unsure how the local climate affects your home, stick with the recommended minimum of 64°F for healthy individuals when home. Even if you’re away, it’s important to keep your home at at least 55°F to mitigate risk of your pipes freezing in cold weather, so it’s important to pay attention to the temperature in cooler climates and colder weather.
Consider the Temperature
A good rule of thumb is to start using your heating system when outdoor temperatures consistently fall below 60°F, or your indoor temperature is less than 64°F. The World Health Organization (WHO) recommends 64°F as the minimum indoor temperature for healthy individuals and 68°F for vulnerable individuals such as elderly people, unhealthy people, and children. Any colder, and you may not feel as comfortable and you could be at risk of temperature-related illness.
Consider investing in a programmable or smart thermostat for precise control and remote use for when you’re not home.
Consider Energy Costs
Turning on the heat earlier than necessary can lead to higher energy bills, especially with the potential for warmer days to return even after a cold snap in St. Louis. Evaluate the forecast and your comfort level to avoid prematurely activating your heating system during brief cold spells that might be followed by milder conditions. Utilizing layers of clothing and blankets can often extend the time before you need to switch to furnace power.
The “Three-Day Rule”
While not a strict rule, some homeowners in St. Louis find the “three-day rule” helpful. If the forecast consistently predicts daytime highs below 60°F and nighttime lows in the 40s for three consecutive days, it’s often a good indicator that sustained colder weather has arrived in the region and it’s time to turn on the heat.
Feel Out Your Level Of Comfort
Ultimately, the “right” time to turn on the heat is subjective and depends on your individual comfort level and that of your family. Young children, elderly family members, and those with medical conditions may require a warmer environment to stay comfortable and healthy. Some people are more sensitive to cooler temperatures than others. Pay attention to how comfortable you feel indoors. If you’re frequently reaching for blankets and sweaters, it might be time to turn on the heat, regardless of the outdoor temperature.
To keep your heating and cooling system energy-efficient, we recommend starting with a lower temperature on your thermostat and turning it up as necessary.
Don’t Forget Home Insulation
If your home is drafty or poorly insulated, you might want to consider turning on your heat sooner before the temperature drops too low in your home. Pay attention to the age and insulation level of your windows; if they are older, with thinner glass, or you have previously noticed drafts, it’s likely a sign that your window insulation is poor. You will need to adjust your heating accordingly.
New windows aren’t on the table? Seal your glass panes with caulk or apply plastic sheets across your windows to block drafts. This can lead to more energy-efficient heating and cooling of your home.
How to Prepare Your Heating System For Winter
Before you turn on your heating system for the first time, take these steps to ensure it’s ready for the winter season:
- Change the air filter: A clean air filter improves airflow and efficiency. Replace your filter every three months, depending on your usage and filter type. Homes with pets and multiple residents might have to replace their filters more frequently – once per month.
- Inspect your system: Check your HVAC system for any visible signs of damage or wear. Look for loose connections, rust, smells, or unusual noises. If you notice any issues, contact a professional for air conditioners, heating and cooling repair and regular furnace maintenance.
- Test your thermostat: Make sure your thermostat is working correctly by setting it to a higher temperature and listening for the system to turn on. If it doesn’t respond, you may need to replace the batteries or contact a professional HVAC technician for a check-up.
- Clean vents: Dust and debris accumulate in your vents over time. Vacuum them thoroughly to breathe cleaner air and prevent potential airflow restrictions. To ensure that airflow is circulating correctly, airflow experts recommend keeping a clearance of 10” between vents and all furniture, curtains, and other objects.
- Schedule a professional inspection: Ensure your system is in good working order with regular maintenance. A well-maintained system is a key strategy for your HVAC to run more efficiently, crucial for those prolonged St. Louis winters. A professional HVAC company can conduct furnace and air conditioner maintenance, heating and cooling repair, and new system installation as needed. Preventive measures can save you from costly repairs and improve your system’s performance.
Tips for Smart Seasonal HVAC Use in St. Louis
Once you do decide to turn on the heat, here are a few tips to maximize comfort and energy efficiency throughout the St. Louis winter:
- Start Gradually: Instead of immediately cranking up the thermostat, try setting it to a moderate and comfortable temperature (e.g., 68-70°F) and see if that meets your needs in your St. Louis home.
- Utilize Smart or Programmable Thermostats: Smart thermostats allow you to set different temperatures for different times of the day, automatically lowering the heat when you’re asleep or away, and saving energy during those times when full heating isn’t necessary in your St. Louis residence.
- Consider Zoning: If you have a multi-story home or rooms that are consistently colder in your St. Louis house, consider a zoning system to heat only the areas you’re using.
Ready for a Comfortable St. Louis Winter? Contact Us!
If you have any questions about optimizing your heating system for the St. Louis winter, or if you’d like to schedule a maintenance check to ensure your furnace is ready for the season, don’t hesitate to contact Meyer Heating & Air. We’re here to help you stay warm and comfortable all winter long!
Many find a slightly cooler temperature (around 60-67°F) optimal for sleep. If your bedroom consistently drops below this, it’s time to turn on the heat at night. Using a programmable or smart thermostat can automate this adjustment, ensuring comfort while saving energy by not overheating while you sleep. Consider your personal comfort and the forecast.
If your thermostat is set to “off,” the heat should not be activating. This could indicate a wiring issue, a faulty thermostat, or a problem with the HVAC system’s control board. It’s crucial to turn off the system at the breaker for safety and contact a qualified HVAC technician immediately to diagnose and repair the problem. Do not attempt DIY electrical fixes.
Emergency heat is a backup system, typically electric resistance heat, designed for use only when your primary heating source (like a heat pump) is malfunctioning or unable to keep up during severely cold temperatures. It’s less energy-efficient and should be used sparingly. If your regular heat isn’t working and the temperature is dangerously low, engage emergency heat temporarily while you call for professional HVAC service.
