What to Do Before You Turn on Your Furnace

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As winter approaches, evenings in Maryland and Washington, DC are getting colder. You may even be thinking it’s time to turn on your heating system for the first time. Before you turn on your furnace, make sure you take the …

Top Reasons Your Furnace is Blowing Cold Air

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When the cold weather hits the DC area there’s nothing more satisfying than relaxing in a warm and cozy home. And there’s nothing worse than a working furnace that’s blowing cold air—leaving you chilly and your home uninviting. But there’s …

How Do I Change My Furnace Filter?

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Are you searching for information on how often the filter on your furnace needs to be replaced? Look no further, you’ve found Michael Bonsby Heating & Air Conditioning, a trusted source of furnace information in Maryland and DC. On average, …

The Importance of Manual J Load Calculations

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Before Manual J load calculations were required and considered the standard for designing HVAC systems, most contractors would just take an educated guess as to what the system size should be. This approach to system design actually worked because they …

Is Your Heating System Prepared for Winter?

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It’s almost the holiday season and before you know it, we’ll be ringing in the New Year. But as the ball drops, so does the temperature. Is your heating system prepared for the blistery winds and snow storms ahead? The …

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