Why Your Furnace Blows Cold Air (Common Causes) If your furnace is blowing cold air, the system may be failing to heat properly—or it may be moving already-cool air through the house. The problem is often tied to airflow issues, a failure in ignition/combustion, or a sensor/thermostat setting that stops (or bypasses) normal heating. Start with the simplest checks first: confirm the thermostat is set to Heat , and that the temperature is set higher than the current room temperature. Also verify the fan setting isn’t on “On” (which can circulate air without heating). If the thermostat shows the heat is calling but the air never warms, move to the next steps. 1) Dirty air filter or restricted airflow A clogged or dirty filter can limit airflow so the furnace can’t operate effectively. In many systems, restricted airflow can trigger safety protections that prevent proper heating. Check the filter and replace ... Read more »
What SEER Rating Should Your AC Have in Illinois? With Illinois summers bringing stretches of high heat and humidity, selecting the right air conditioner efficiency matters. One of the most important specs to compare is SEER, or Seasonal Energy Efficiency Ratio, which measures how efficiently an AC uses electricity across a cooling season. While minimum requirements vary by product type and installation timing, today’s market generally makes it easy to find options spanning from basic models to high-efficiency units. The best SEER rating for you depends on your comfort goals, how long your system runs, and how you plan to use the home. SEER basics: what the rating actually tells you SEER reflects cooling output divided by energy input over typical operating conditions. In practical terms, a higher SEER unit usually delivers more cooling per unit of electricity. That can translate to lower electric bills—particularly in Illinois towns where air cond ... Read m...