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When you are facing the prospect of a furnace replacement for your Ocala home, make sure that the HVAC contractors with whom you work do load calculations first. This calculation guarantees that the furnace will be the right size. Installing one that is too large or too small shortens its life, drives up heating costs, and reduces your comfort.

Load Calculations: The First Step in Furnace Replacement

A load calculation applies to both heating and cooling equipment and should be the first step in replacing your HVAC equipment. It takes into account the following attributes of your home:

  • Size of the home
  • Overall energy efficiency of the home, which takes into consideration factors such as insulation, window quality and placement, and air leakage
  • The amount of sun exposure
  • Landscaping factors
  • Household size or number of occupants
  • Preferred indoor temperatures
  • Heat you produce indoors
  • Floor plan design

HVAC contractors use the Air Conditioning Contractors of America’s (ACCA) Manual J load calculations and Manual D duct designs to process the information for the size of the HVAC equipment and its ductwork size and configuration, along with its condition. Starting with the load calculations helps you to determine if you can improve your home’s energy efficiency. This could result in the need for a smaller system that will use less energy over its lifetime. Improving insulation levels and sealing air leaks are cost-effective ways to reduce the size of the heating system you need.

Why Size Matters

If the system is too large, it will run in short cycles, and damage the equipment. If the system turns on and off frequently, it is likely that rooms further from the thermostat will not have time to warm thoroughly. If the furnace is too small, it may struggle to heat your home during the coldest weather.

In either case, the result will be inefficient operation that will lead to higher heating bills.

Your qualified HVAC contractor will be able to help you to select the right unit for your home. For more information and help with load calculations, or any other HVAC concern contact the pros at Sun Kool Air Conditioning Inc., Inc. at 352-282-4763. We provide services and systems to take care of your home comfort needs. Schedule an appointment today!

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Kool Club

Preventative Maintenance and Kool Club Membership

Regular maintenance extends equipment life, prevents unexpected breakdowns, and maintains manufacturer warranties. Our preventative maintenance plans and Kool Club Membership provide comprehensive system care throughout the year. During maintenance visits, we perform detailed inspections, clean critical components, check refrigerant levels, test safety controls, and verify proper operation of all system elements. Members receive priority scheduling, discounted repairs, and peace of mind knowing their systems receive professional attention before minor issues become major problems.

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Statistics show that properly maintained HVAC systems last 40% longer than neglected units while consuming 25% less energy. Our maintenance protocols follow manufacturer specifications exactly, preserving warranty coverage while optimizing performance. We document every service visit, tracking system performance over time to identify developing issues before they cause failures.





Join the Kool Club

Bi-Annual Tune-Ups

Two 21-point inspections each year to prevent breakdowns and extend system life.

Priority Service

Front-of-the-line scheduling with no weekend or overtime service fees.

Member-Only Savings

Save 20% on repairs plus earn Kool Bucks for future services.

Warranty Protection

Manufacturer-compliant maintenance that protects your HVAC investment.

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Customer Testimonials
Trusted Locally Since 1984
Dwayne Cyr
George, Chris and Drew. From beginning to end we couldn’t be happier with the end result. We needed complete replacement on our system. George was awesome going over in detail all the options. Chris and Drew we great, on time, efficient and friendly. I have...
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Angela Mitchell
This review is long overdue. We chose Sun Kool to replace our outdated A/C system and it was done very professionally. Also mentioning, getting an appointment that was suitable for them and us in a short time frame was impressive. Our service techs were James...
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Jason M
James was an excellent resource for us from day one of coming out. Our 15 yr old unit was shot and he gave us a temporary portable air unit until the components arrived from manufacturer. Installation was smooth and the guys were very knowledgeable and...
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Michael Church
My Mom and I had new heating and AC system installed. We have dealt with them for years and they have always gone above and beyond to solve any issues. I highly recommend. Even the building inspector said he never has had issues with them;...
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BD Laferriere
Excellent experience thru all phases of an HVAC upgrade. Staff were responsive from the beginning of the process and explained what was needed and would be done and when. Prices were very competitive and we were satisfied throughout the experience. I would recommend Sun Kool...
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