Top 5 Heating Mistakes Milwaukee Homeowners Should Avoid in 2025

As the winter chill settles over Milwaukee, homeowners rely on their heating systems to keep their families warm and comfortable. However, many unknowingly make mistakes that can lead to higher energy bills, reduced comfort, or even costly repairs. To help you stay warm and save money this winter, E & R Heating and Cooling has compiled the top five heating mistakes Milwaukee homeowners should avoid in 2025—and tips to ensure your system runs efficiently all season long.

Mistake 1: Skipping Annual Furnace Maintenance

Regular furnace maintenance might seem like an unnecessary expense, but it is one of the most important steps in keeping your heating system running smoothly. When you skip maintenance, minor issues can go unnoticed, eventually leading to major problems that are far more expensive to fix.

During a professional HVAC checkup, technicians inspect components like the heat exchanger, blower motor, and ignitor. They’ll also clean the system, lubricate moving parts, and ensure it’s operating safely and efficiently. Without these routine checks, you risk your furnace breaking down during the coldest days of winter—when you need it most.

Pro Tip: Schedule your furnace maintenance with a professional HVAC service every fall before the winter season begins. Not only will this keep your system in top shape, but it can also extend its lifespan and save you money on energy bills.

Mistake 2: Ignoring Dirty or Clogged Air Filters

A dirty air filter is one of the most common yet easily avoidable heating mistakes. Filters play a critical role in ensuring proper airflow through your HVAC system. When they become clogged, airflow is restricted, causing your furnace to work harder to circulate heat. This not only increases energy consumption but can also lead to overheating and system failure.

Moreover, dirty filters can negatively impact your indoor air quality, exacerbating allergies and respiratory issues for your family.

Pro Tip: Check your air filter at least once a month during heavy heating use. Replace it every 1–3 months, depending on the type of filter and how much dust or pet dander is in your home.

Mistake 3: Cranking the Thermostat Too High

When the temperatures drop, it’s tempting to turn up the thermostat to get your home warm quickly. However, this approach doesn’t actually heat your home faster. Instead, it forces your furnace to run longer, leading to higher energy bills and more wear and tear on the system.

Additionally, maintaining an overly high indoor temperature can make your home feel stuffy and uncomfortable. It’s far better to use a steady, moderate temperature that balances comfort and efficiency.

Pro Tip: Invest in a programmable or smart thermostat. These devices allow you to set a heating schedule that lowers the temperature while you’re asleep or away and raises it before you return, ensuring comfort without wasting energy.

Mistake 4: Blocking Vents and Airflow

Many homeowners inadvertently block their heating vents with furniture, rugs, or curtains. This mistake reduces airflow, making your heating system work harder to distribute warm air throughout your home. The result is uneven heating, higher energy costs, and added strain on your furnace.

Blocked vents can also cause safety concerns. When airflow is restricted, heat builds up in the ducts, which could potentially damage your system or even start a fire in extreme cases.

Pro Tip: Walk through your home and ensure all vents are unobstructed. Rearrange furniture and curtains as needed to allow air to circulate freely. For rooms that are rarely used, consider partially closing the vent rather than blocking it entirely.

Mistake 5: Neglecting to Seal Drafts and Insulate Properly

Poor insulation and unsealed drafts are silent energy thieves. Heat escapes through gaps around windows, doors, and poorly insulated areas, making it harder for your furnace to keep your home warm. This not only increases energy costs but also puts unnecessary strain on your heating system.

By sealing drafts and ensuring your home is well-insulated, you can significantly improve your home’s energy efficiency and reduce heating costs.

Pro Tip: Use weatherstripping or caulking to seal gaps around doors and windows. Check your attic insulation to ensure it meets recommended levels. If your home has ductwork, have it inspected for leaks, which can be sealed with mastic or aluminum tape.

The Importance of Avoiding These Mistakes

By steering clear of these five common heating mistakes, Milwaukee homeowners can enjoy a warmer, more efficient, and trouble-free winter. These small changes can make a big difference in lowering energy bills, preventing unexpected breakdowns, and ensuring the longevity of your HVAC system.

E & R Heating and Cooling is here to help you stay comfortable all winter long. Whether you need furnace maintenance, a new air filter, or advice on improving your home’s energy efficiency, our team of professionals has you covered. Don’t wait until it’s too late—schedule your service today and experience the peace of mind that comes with a well-maintained heating system.

Contact us at 414-467-9454 or visit our website to book an appointment now!