How Important is HVAC System Sizing?

Shopping for a new HVAC system can feel overwhelming- especially when you are faced with HVAC jargon, such as sizing and capacity. If you are struggling to make sense of it all, you are not alone.  Without formal training, it can be tough to know what truly matters.

At Preferred Air, we see improper sizing as one of the most common mistakes made by uncertified technicians. Home and business owners often come to us after experiencing problems with poorly sized systems. The good news? With a licensed and experienced contractor, and a basic understanding of how sizing works, you can avoid these costly headaches and enjoy lasting comfort.

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Why Size Matters

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Choosing a system based only on square footage—like many people do with small window units—oversimplifies the process. While square footage is important, professional HVAC sizing accounts for many other factors, including:

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·       Number of windows and their direction

·       Building materials

·       Insulation quality

·       Ceiling height

·       Local climate

·       Number of occupants

·       Heat-generating appliances and lighting

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The Risks of Improper Sizing

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·       Too Small: The system runs constantly, drives up energy bills, struggles with humidity control, and leaves you with inconsistent temperatures.

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·       Too Large: The system short cycles, causing uneven heating or cooling, poor dehumidification, and higher operating costs.

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The Benefits of Proper Sizing

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When your system is sized correctly, you’ll enjoy:

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·       Steady, reliable comfort

·       Lower utility bills

·       Improved indoor air quality

·       Better humidity control

·       A longer system lifespan

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Get Expert Guidance
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If you’re considering a new HVAC system, don’t leave sizing to chance. Contact our customer service team at (978) 750-8282 or office@preferredairinc.com. We're happy to help you find the best solution for your home or business.

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Preferred Air has been offering trusted service for 34 years. We'd love to have you join our community by scheduling a service or a complimentary professional system evaluation and estimate for upgrades or replacements of your current system with our factory-trained expert technicians.

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