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  • Furnace Filters
    Can Furnaces Run Without a Filter?
    While some people may think of furnace filters as nothing more than an air purifier, they are actually a necessary part of your heating setup. In fact, you should still use an air purifier if you're concerned about air quality.
  • Humidity Level
    What is the Recommended Humidity Level for Your Home?
    Humidity becomes a larger concern during the cold winter months because you turn on the furnace to warm up. While this increases heat, the amount of moisture remains the same. Thus, relative humidity decreases, and you may notice familiar signs of lack of moisture.
  • MERV Ratings
    What Are the Differences Between MERV Ratings?
    All HVAC systems need proper filtration. To make sure that you get the right air filter for your system, you must understand MERV ratings.
  • Air Duct Cleaning
    How Do I Know if I Have Indoor Quality Issues?
    When is the last time you thought about your indoor air quality? Due to the push for improved energy efficiency and lower utility bills, most modern homes are extremely airtight. This means that indoor and outdoor air do not merge unless a door or window is opened.
  • Cold Indoors
    Why is My Heater Blowing Cold Air?

    Your heating system is blowing cold air. It's starting to feel as cold inside as it is outside. If your furnace is blowing cold air, you could have one of several HVAC problems:

    The Thermostat Isn't Set to the Right Temperature

    Someone in the house may have adjusted the thermostat. Take a moment to check it. Make sure it's set for heating, not cooling. Verify the thermostat is set to the desired temperature. You wouldn't believe the number of HVAC calls we get where the only problem was a thermostat not set properly.