Right-sized, not rule-of-thumb sized.
Load calculations that determine the exact heating and cooling capacity your home needs before any equipment is chosen.
- Method: Manual J style load calculation
- Inputs: Size, insulation, windows, leakage
- Output: Heating and cooling capacity
What it is, and why it matters.
Oversized systems short cycle, wear out sooner, leave humidity behind and cost more to run. Undersized systems struggle on extreme days. A load calculation looks at your home's size, insulation, windows, orientation, air leakage and occupants to find the capacity it actually needs.
The result guides equipment choice and duct design. It is the single most important step in a good installation, and we explain it so you can see why the recommended system fits.
Four things done right.
Right capacity
Not oversized or undersized.
Better humidity control
Properly sized systems run longer.
Lower operating cost
Efficient cycles.
A basis for comparing quotes
Same numbers for every bid.
From first call to hvac system sizing and load calculations.
- 01
Measure
Home and construction details.
- 02
Calculate
Room-by-room loads.
- 03
Recommend
Equipment capacity.
- 04
Design
Duct and airflow plan.
Often done together.
HVAC System Sizing and Load Calculations across Middle Tennessee.
We do this work in 28 cities, from downtown Nashville to Franklin, Murfreesboro, Hendersonville and Dickson.
HVAC System Sizing and Load Calculations: common questions
Can I just replace my system with the same size?
Not always. The old system may have been oversized, or the house may have changed. A load calculation confirms the right size.
How many square feet does one ton cool?
A rough rule is about 500 to 600 square feet per ton, but insulation, windows and sun change it. Our System Sizer gives a first estimate, and a load calculation confirms it.
How do I get a price for hvac system sizing and load calculations?
Fill in the form or call or text 615-431-3789. We confirm what is involved and send a written price, and larger jobs get a free estimate visit.
Ready to talk about hvac system sizing and load calculations?
A short visit and a written price. A real person calls back, usually the same day.