Massachusetts Refrigeration License #RC-148128
Massachusetts Master Sheet Metal License #2284
Massachusetts Sheet Metal Business License #493
If you are searching for a new HVAC system and struggling to make sense of the industry jargon—terms like sizing and capacity—you are not alone. Without formal training, the details can quickly become overwhelming. At Preferred Air, we often see homeowners and business owners come to us after having a system installed that wasn’t properly sized. It’s one of the most common mistakes made by uncertified technicians and one of the easiest to avoid with the right expertise.
As a property owner, having a basic understanding of HVAC sizing can help you make more informed decisions and recognize the signs that your current system might not be the right fit.
When someone installs a small unit—like a window AC—it’s often chosen based solely on square footage. While that’s a factor, it’s an oversimplification that doesn’t work for whole-home or commercial systems. A licensed, certified contractor will consider many additional elements to ensure your system is properly sized, including:
An HVAC system that’s too small will run constantly, drive up energy bills, struggle to maintain consistent temperatures, and fail to properly control humidity.
A system that is too large can cause short cycling (frequent on/off operation), uneven temperatures, poor dehumidification, and higher long-term costs due to wear and inefficiency.
If you have questions or want to explore your options, 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.
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.