HVAC Load & Sizing Blog
Guides, worked examples, and straight answers on HVAC load calculation and equipment sizing — written to pair with our free calculators.
- What Is HVAC Load Calculation?A plain-English explanation of what an HVAC load calculation is and why it decides the size of every system.Read guide
- How to Calculate HVAC Load, Step by StepThe exact steps, inputs, and formulas to calculate heating and cooling load for a home.Read guide
- How to Measure Your Home for HVAC SizingA measuring checklist that gets you accurate inputs before you run a load calculation.Read guide
- HVAC Load Calculation Example: A Worked WalkthroughFollow a complete load calculation for a real home, number by number, to a final tonnage.Read guide
- The HVAC Load Calculation Formula, ExplainedThe core load formulas — sensible, latent, conduction, and infiltration — with what each term means.Read guide