HVAC Zoning and Why it Matters

Zoning can be helpful in almost any situation, but why should you consider having this in your house?

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HVAC maintenance

Zoning can be helpful in almost any situation, but why should you consider having this in your house?

HVAC zoning system with air ducts and vents, highlighting efficient heating and cooling solutions for residential and commercial spaces.

If you hire a good air conditioning company, you can be sure that they will put in a system that is the right size. The question is why this even matters.


Some common misunderstandings concerning HVAC systems exist. It's a common misconception that bigger air conditioners chill a home more quickly. When looking for a new air conditioner, it is important to consider your home's unique requirements. Sizing is crucial for any HVAC system to serve its intended purpose effectively.


Let's take a look at the significance of HVAC sizing.

What Is HVAC Sizing?

Heating and cooling loads have the opposite effect on how much work an HVAC system has to do to keep a room at a certain temperature. Sizing your home's heating, ventilation, and air conditioning system entails several measures. It takes into account things like:

  • Local climate zone
  • Square footage
  • Height of ceilings
  • Ductwork
  • Amount of insulation
  • Number and style of windows
  • Heat-generating appliances in a space
  • Number of people living in a space
  • Orientation of the house


The Manual J Calculation uses these inputs to get at an accurate estimate of the number of BTUs (British Thermal Units) required to cool or heat your home adequately. Then, the HVAC specialist will decide what size system is necessary to meet the requirements of design load, extreme load, and part load.


Importance Of HVAC Sizing


To what extent does it matter that your new HVAC system needs to be revised?


It's okay to have a little more power. Because of this, these systems can handle more work when it's very hot. The issue is that a larger unit will chill your home faster, but it will be less effective at reducing humidity or filtering the air because of its shorter cycles. This decreases air quality within your home, leaving you in a cold and damp place. Energy use is another problem that could end up hurting your wallet. There is the possibility of equipment damage due to the short cycle and the higher cost of a unit that performs less well.


There will be immediate problems if your HVAC system is too small. For one thing, it won't be able to heat or cool your house well enough. It won't do much to temper the temperature difference indoors and out during the summer, and it might be too chilly during the winter. If your HVAC system is up to the task, it will be easy to heat and cool a bigger house. This will lead to frequent malfunctions that necessitate immediate heater repair services.



On the other hand, a system that is the right size provides more thermal comfort, uses less energy to cool or heat the home, and needs fewer repairs. A system that has to work too hard to supply conditioned air will have a shorter life expectancy. Consult with a professional like us to ensure a flawless installation. You should consider your HVAC system a serious investment in your home because it is.


Save money on utilities and maintenance by making us Best Owner Direct HVAC. We offer professional HVAC sizing and installation services and emergency heating repair services. Give us a call or book an appointment with us online.

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Customer Testimonials

See what our happy customers have to say about their experience with Best Owner Direct HVAC & Electrical and why they continue to choose us for their home comfort needs.

    Been using them for years after the owner Kevin showed up so fast when our furnace went out one year. Been a fan since! Now, Danny is so great to work with, also. So friendly, knowledgable, fast. You guys are the best!

    Jessie M.

    Danny came out on a Saturday to diagnosis and fix my mom’s hvac unit.   He was able to quickly determine what the problem was and had all the parts to complete the repair right then.  His communication was clear and did a really good job helping us understand what caused the issue.  I would definitely recommend him and will be calling his company with any needs in the future. Thanks again!

    Michael R.

    Fantastic customer service! I had a furnace issue, called late morning and they fit me in for diagnostic right away. Technician was extremely knowledgable, walked me thru everything he found - unfortunately needed a new furnace (was 24 years old anyways), got it scheduled and installed within 24 hours as everything was in the warehouse (probably got lucky on what we needed). Overall excellent customer service, from scheduling to diagnostic, to installation. Highly recommend.

    Brad D.

    WOW! So impressed with so many aspects of this company. We had an animal die under the house in and could smell it coming out of the vents. When I called around, pest control was weeks out and Best Owner Direct was able to come the next day. Our technician, Danny was absolutely INCREDIBLE! Very professional, kind and made sure we had the problem taken care of the same day so we could breathe again! I look forward to continuing to work with them in the future for our HVAC needs.

    Todd & Tiffany F.

    Daniel was excellent, attentive to detail and committed to completing all tasks other installers overlooked. He worked tirelessly into the evening making sure everything was working properly with a water heather install, and he had a great attitude all along.

    Alma H.

    Excellent customer service, great communications answering all of our questions, left the site clean, and very respectful of our space within the house. Arranged to have someone come from the office later in the week to explain how the thermostat works.

    Vinod S.

    BOD is fast, efficient and affordable life save for my client who is purchasing a home with an old HVAC. Best Owner came quickly to help her asses the cost to replace it, and I will continue to recommend their services!

    Laurel A.

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