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​​Why a bigger AC, Heat Pump or Furnace isn't always better.


Despite what many believe, installing a bigger air conditioning system does not always equate to a higher comfort level or better performing system. Installing properly sized equipment requires that certain factors be considered.  Climatize comfort advisers/ Technicians understand this and can perform various calculations to build you the perfect Heating & cooling system.

When considering a new system, your AC contractor should always perform a Load calculation on your home before recommending new equipment.  Going by the size of the previous system can be unwise as the previous system might not have been calculated properly.  It's also possible that changes to the home have increased or decreased your homes efficiency.

Your Climatize comfort Techncian will also inspect other aspects of your system including the condition of your ducts and attic insulation.  Dealing with problematic issues in this area will ensure that your new system will operate and peak efficiency and provide you with the most comfortable environment possible.

Problems That Can Occur With Oversized System

The follow are symptoms of systems that were not properly calculated before being installed.

Poor Humidity Control
As an air conditioning system cools the air in your home, it is also drying the air.  Humidity in the air is removed and sent outside which helps you feel more comfortable.  This drying process occurs while your unit is running.  Over-sized units do a great job of pumping a lot of cold air into your home but they do so too quickly, which means your air conditioning system does not run long enough to remove the humidity from the air completely. This leads to a wet, sticky environment which can lead to other problems listed below.

Also keep in mind that oversizing a newer high efficiency system is more likely to create high humidity issues than it did with the older equipment being replaced.
 
Increased Mold
High humidity can lead to mold growth in your home.  According to the EPA, the American Medical Association and the American Lung Association, to ensure that mold growth is kept at bay, it is important that indoor humidity levels are kept below 50%.  As we explained in the previous section, an oversized system just can't do that.
 
Increased Allergy Suffering
Those who suffer from allergies are usually also allergic to tiny dust mites and their droppings.  Since dust mites thrive in damp environments, you are more likely to have allergy issues if you have an oversized unit.
 
Uneven Temperatures
In addition to poor humidity control, an oversized system will lead to poor air distribution and uneven temperatures throughout your house.  When your air conditioning system short-cycles, the farthest rooms in your home don't get enough cool air because the unit does not run long enough to move all the air through the cooling process.
 
Higher Electric Bills
An oversize unit is more expensive in several ways.  It's more expensive to purchase.  Excessive cycling (the process your unit goes through when it starts and stops each time) is hard on system and can lead to repair issues.  It also takes about 12 minutes for your system to reach its rated efficiency.  You are also likely to lower your thermostat to deal with the excessive humidity.  A smaller AC unit (properly sized for your home) running for longer periods of time will actually use less energy and save you money.
 
Increased Noise
Bigger units push around a larger volume of air which is likely to cause your ducts to not be able to handle the increased air flow.  This reduces efficiency and increased noise.  A properly sized unit runs quieter and is much less noticeable.
 
More Breakdowns and Repairs
Like any machine, the more often it has to start and stop, the more wear and tear it experiences.  Oversizing your air conditioner will lead to more frequent breakdowns, higher repair bills and a shorter lifespan.

Are you considering a bigger AC unit because some rooms are too hot?
The better solution is to have a Climatize Comfort Adviser perform a Complete System Analysis to determine the exact cause of the problem and the most economical solutions available.

Does your unit run non-stop?
If it does, that's ok if it's really hot or cold outside and your comfortable.  If it's running non-stop and it never seems to get to a temperature you desire, then you may need a larger system.  Again, a Climatize Comfort Technician will be able to assist you with the process.  They will look for simple issues like improper Freon levels and then inform you of your Repair vs. Replace Options.
We Can Help! If you are experiencing these types of problems, you definitely want to have a Climatize Comfort Technician come to your home and give you a free estimate on what it will take to resolve them.



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Tennessee State Licensed Contractor #CMC-C 68800, City Knoxville Licensed Contractor # G000009485 & M00009486,  City Oak Ridge Licensed Contractor # 2337         
Climatize Heating & Cooling LLC, 5139 Hwy 321 N, Lenoir City Tennessee 37771, 865-230-5079, 865-816-6477
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LOUDON & KNOX
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LOUDON & KNOX
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ROANE & MEIGS
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ROANE & MEIGS
Climatize Heating & Cooling LLC provides Eastern Tennessee with Superior performing Heating & Air Conditioning Equipment and Superb Indoor Air creating clean, safe, healthy and energy efficient places to live and work.   Questions/Comments:  Call (865) 230-5079 or Email: ClimatizeTn@gmail.com
AIR DUCT CLEANING      HEATING REPAIR       AIR CONDITIONING REPAIR      HVAC NEW SYSTEM INSTALLS      INDOOR AIR QUALITY & CLEAN AIR      GAS FIREPLACE REPAIR
 
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Climatize Heating & Cooling, LLC, Heating & Air Conditioning, Kingston, TN
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  • Home
  • Heating & AC
    • Repair AC & Heating System
    • Install New AC & Heating System
    • Maintenance on AC, Heat Pump & Furnace
    • Inspections on HVAC for closing
  • Air Duct Cleaning
  • Air Purification
  • Gas Fireplace Repair
  • Promotions
  • Request Service
  • FAQ Glossary
  • Coronavirus disease 2019 (COVID-19)