Your Comfort, Our Promise

Common Myths About HVAC Systems

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Keeping your home comfortable in the Boston Metro West area requires a reliable HVAC system, but there is a lot of misinformation out there that can lead to higher bills and unnecessary repairs. At CPS Heating & Cooling, we believe that an informed homeowner is a happy homeowner. Since 1991, we have seen how following the wrong advice can shorten the lifespan of even the best equipment, which is why we are dedicated to debunking the most common myths circulating in our community.

Why HVAC Misinformation Can Be Costly

Misconceptions about heating and cooling often stem from "old school" habits or a misunderstanding of how modern, high-efficiency technology operates. When you follow incorrect advice, you risk more than just a little discomfort; you could be voiding your manufacturer’s warranty or causing a total system breakdown during a New England heatwave or cold snap. Understanding the truth behind these myths helps you maintain a more efficient, longer-lasting system.

Myth 1: The Bigger the System, the Better the Performance

Many people believe that a larger air conditioner or furnace will heat or cool a home faster. In reality, an oversized system is a major problem. HVAC units that are too large for the square footage of a home will "short cycle," meaning they turn on and off rapidly.

This leads to several issues:

  • Increased wear and tear on the compressor and motor

  • Poor humidity control because the system doesn't run long enough to remove moisture

  • Inconsistent temperatures and "hot spots" throughout the house

  • Significantly higher energy bills due to the frequent starting of the motor

Myth 2: Closing Vents in Unused Rooms Saves Energy

It seems logical: if you aren't using a room, closing the vent should save money. However, modern HVAC systems are designed with a specific "static pressure" in mind. When you close vents, you disrupt the airflow balance.

The negative impacts include:

  • Increased pressure in the ductwork, which can lead to leaks

  • Forcing the blower motor to work harder, leading to premature failure

  • Potential freezing of the AC evaporator coil in the summer

  • Overheating of the heat exchanger in the winter

Myth 3: Maintenance is Only Necessary if the System Breaks

Waiting for a breakdown to call a technician is like waiting for your car engine to seize before changing the oil. Regular maintenance is a preventative measure that saves you significant money in the long run.

A professional tune-up from CPS Heating & Cooling ensures:

  • Efficiency: Clean coils and lubricated parts use less electricity.

  • Safety: We check for cracked heat exchangers and carbon monoxide risks.

  • Longevity: Minor issues are caught before they turn into expensive replacements.

  • Warranty Compliance: Most manufacturers require annual service to keep your warranty valid.

Myth 4: Turning the Thermostat Way Down Cools the House Faster

Your air conditioner is not like a garden hose; you can't "turn up the flow." An AC unit delivers air at a consistent temperature until the home reaches the setting on the thermostat. Setting your thermostat to 60°F when it is 80°F inside will not make the air come out any colder; it simply keeps the system running longer, which can lead to overcooling and wasted energy.

Partner with Local Experts for Real Results

Don't let HVAC myths dictate your home comfort or your budget. Our NATE-certified team at CPS Heating & Cooling is here to provide the honest, expert guidance you need to keep your home running smoothly through every season. If you have questions about your system's performance or want to schedule a professional evaluation, contact us today at (508) 501-8848.