The Right Size HVAC – Is it Better to Undersize or Oversize HVAC?

April 24, 2023

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The right size HVAC system for your home is a crucial decision. The HVAC system is responsible for heating, cooling, and ventilating your home, so it is important to get it right. But with so many options available, deciding which size is best for your home can be overwhelming. It is neither correct to undersize nor oversize your HVAC unit.



Ask a professional HVAC company like Plumbhouse Plumbing, Heating & Electrical in London, ON, to help you formulate the right size HVAC system for your home.

Choosing the right HVAC system size requires a thorough evaluation of your home’s square footage, insulation, number of rooms, and occupants. Without proper evaluation, your HVAC system may be too small or too large, which can lead to inefficiencies, higher utility bills, and even a shorter lifespan for your HVAC system.

One of the main benefits of hiring an experienced HVAC company like Plumbhouse Plumbing, Heating & Electrical in London, ON, is that we consider factors such as the size of your home, the number of rooms, the amount of insulation, and the number of occupants to recommend the best HVAC system size for your home. 

  • This will ensure that you have an efficient, effective, and long-lasting system.
  • It is important to note that sometimes, HVAC companies may recommend a smaller unit to save their clients’ money. While saving money on a smaller HVAC system may seem like a good idea, this can lead to inefficiencies and increased utility bills. 
  • An undersized HVAC system may not be able to heat or cool your home efficiently, leading to longer run times and increased energy consumption.
  • An oversized HVAC system can also be problematic. While it may seem like a bigger system would be better at heating and cooling your home, an oversized system will consume more energy and can lead to temperature swings and higher humidity.



The right size HVAC system is essential for your home. Here are some pros and cons of using a too-big or too-small HVAC unit:


Using a too big HVAC unit:

Pros:

  • Quick heating or cooling of the space, as the oversized unit has the capacity to generate large amounts of heating or cooling energy.
  • Comfortable indoor temperatures, even in extreme outdoor temperatures.
  • Less wear and tear on the system, as it won’t have to work as hard to maintain the desired temperature.

Cons:

  • Higher initial cost, as the larger unit will cost more to purchase and install.
  • Higher energy consumption and utility bills, as the larger unit will use more energy than necessary to heat or cool the space.
  • Shorter lifespan of the system, as it will cycle on and off more frequently, causing more wear and tear on the unit.


Using a too-small HVAC unit:

Pros:

  • Lower initial cost, as the smaller unit will cost less to purchase and install.
  • Lower energy consumption and utility bills, as the smaller unit will use less energy than a larger unit.
  • Longer lifespan of the system, as it won’t have to work as hard to maintain the desired temperature.

Cons:

  • Inefficient heating or cooling, as the undersized unit will struggle to generate enough heating or cooling energy to maintain the desired temperature.
  • Longer run times, as the system will have to run longer to reach the desired temperature, which can result in higher energy consumption and higher utility bills.
  • Reduced indoor air quality, as the undersized unit may not be able to filter and circulate the air in the space adequately.


We take the time to evaluate your home, recommend the right size unit, and ensure that it is installed correctly. 

This will help you save money on utility bills, improve the comfort of your home, and increase the lifespan of your HVAC system.

  • In addition to choosing the right size HVAC system, it is also important to consider the type of HVAC system that is best for your home. Each type of system has its own benefits and drawbacks, so it is vital to work with an experienced HVAC company to determine the best option for your home.


In conclusion, choosing the right size HVAC system for your new home construction is a critical decision that should not be taken lightly. Working with an experienced HVAC company like Plumbhouse Plumbing, Heating & Electrical in London, ON, is the best way to ensure you have the right size HVAC system for your home. 



Contact us by calling (519) 453 4650 or reach us online.



Published by
April 24, 2023 2:01 pm

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