HVAC Myths Debunked!

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ac service waxahachie tx

When it comes to diagnosing HVAC issues, there is a lot to know. Adding to that confusion is a plethora of unfounded myths about heating and cooling systems. Even more frustrating is finding local and affordable AC service Waxahachie, TX. Fortunately, the team at Dial One Johnson Heating and Cooling is here to help.

If you are dealing with HVAC issues, we can solve almost any problem. Give us a call at (469) 240-5618 or reach out online to schedule an appointment.

If you want to learn more about HVAC systems and what common myths surround them, read on.

The Bigger the AC, the Better

While the ‘bigger is better’ slogan may be a Texas staple, it’s not always the case for AC units. So before you opt for that industrial-sized unit, here are some things to consider:

  • Bigger units cost more to run: the bigger the system, the more power you need to operate the air compressor and fans. More power means a higher monthly electricity bill.
  • Short-cycling: a unit improperly fitted for a certain home size will start to frequently turn on and off. This is called short-cycling and it can cause long-term damage to your HVAC system.
  • Upfront costs: it’s no surprise that the bigger the AC unit, the bigger the price tag. It also takes more time to install, which can add up in labor costs.

Before you turn down a larger unit, there is another factor to consider. Most variable-speed HVAC systems will only come in full-ton increments. A ‘ton’ is a unit of measurement of the system’s power, not weight. If your home measures out to need a 2.5-ton system, a 3-ton system will work fine. Even though you have that extra power, your home will rarely, if ever, use it.

Thermostat Placement Doesn’t Matter

Another common HVAC myth is that thermostat placement does not affect your system. The reality is that thermostat placement is a major factor in how efficient your system runs.

Here are some tips for proper placement:

  • Place the thermostat on an interior wall.
  • Make sure no windows are adjacent to the device.
  • Your thermostat should never be in direct sunlight.
  • Keep your thermostat away from major appliances.

If your thermostat is in an area where temperatures can spike, it will cause your HVAC system to run improperly. These fluctuating temperatures caused by environmental conditions aren’t indicative of the actual temperature of the room, confusing your thermostat. Proper placement is the key to staying comfortable year-round.

Using Portable Heaters During the Winter Saves You Money

You’ve probably experienced this before: it’s the dead of winter and you know bumping up the thermostat is going to cost you an arm and a leg – why not break out the portable heaters?

While this might seem like the perfect plan, you need to make sure your central heating system is off first. If you don’t, you can expect to pay for both the cost of running your HVAC system and for the energy that the heater uses.

Portable heaters aside, If your central heating system isn’t adequately heating and cooling, it might be time to call for a heating replacement.

You Don’t Need Regular Maintenance

Routine HVAC maintenance is absolutely crucial to the proper functioning of your system. Not only can it prevent problems down the road, but it also helps your system perform more efficiently.

Preventative maintenance can save you time and money. Tasks like duct cleaning, filter replacement and operation inspections are essential to a healthy and long-lasting HVAC system. A proactive approach to HVAC maintenance is key to getting ahead of serious problems.

If you are on the lookout for affordable HVAC maintenance in Waxahachie, TX, Dial One Johnson has the certified HVAC technicians you need to stay on top of maintenance.

Closing of Vents and Registers can Help with System Efficiency

It might seem logical to close off a few vents and registers to push air into other parts of the home. Pressure issues may occur if you block particular vents and registers. Not only will this make your system less efficient, but it may also cause leaks to form at the vent seams.

You Only Have to Change Your Filter Once a Year

Your air filter is an essential component to keeping the air in your home clean and free from contaminants. Replacing your filter is one of the easiest ways to maintain the lifespan of your Waxahachie air conditioning system.

If you are using cheaper, fiberglass filters, swapping them out monthly is a good strategy to keep up with your system. Higher-end pleated filters can last between three and six months before needing a replacement. 

If you fail to replace your filter, you may face:

  • HVAC system malfunctions.
  • Equipment failures.
  • Reduced airflow and fan strain.
  • Containment buildup in the ductwork.

Fortunately, changing a filter isn’t too hard. You can do it yourself without needing to get a hold of a professional.

You Should Use your HVAC Unit Until it Stops Working

There are many things that you can use until they break – your HVAC system is not one of them. If you think you can get a few more years out of your outdated system, think about the following:


  • The cost of repairs.
  • High electricity bill due to inefficient components.
  • Discomfort during periods of failure.

When summertime comes in Waxahachie, you want to make sure your vents are pushing cold air. With an old system, this can be hard to promise. If you aren’t sure whether your unit should be repaired or replaced, consider the total cost of repairs. If they add up to being equal or more than the cost of replacement, then it’s probably time to schedule this service.

Reliable AC Service Waxahachie, TX

If you are on the hunt for reliable AC service Waxahachie, TX, Dial One Johnson Plumbing, Cooling and Heating is the only team you need. With almost half a century working in the area, the technicians at Dial One Johnson have seen it all. We provide Waxahachie air conditioning and heating services for all kinds of units. Don’t hesitate to reach out with any questions.

If you need emergency repairs, heating unit replacements or help with any other HVAC-related problem, schedule an appointment online or give us a call at (469) 518-4211.

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