What You Should Know About Noise Ratings in HVAC Equipment
HVAC noise ratings can help you compare equipment, but the lowest number on a spec sheet doesn’t automatically mean the quietest home. In Grove City, OH, homeowners should look at the unit’s decibel rating, where the equipment will sit, and how it operates at different speeds. Installation quality matters too, because vibration, duct noise, and poor placement can make quiet equipment sound much louder. Understanding a few basics can help you decide how much a quieter system is actually worth to you. What Does an HVAC Decibel Rating Mean? Manufacturers commonly express equipment sound levels in decibels, or dB. A lower rating generally means quieter operation, but the scale isn’t linear. A 10-decibel increase represents a much larger change in sound energy and is often perceived as roughly twice as loud. When comparing equipment, make sure you’re looking at similar measurements. Sound ratings can be measured under different conditions, so two numbers aren’t always a perfect apples-to-apples comparison. Where the Equipment Sits Can Matter Just as Much A few decibels may matter a lot if an outdoor unit sits directly outside a bedroom window or next to a patio. The same difference may barely register if the equipment is farther...
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