How does the H V A C Load Calculator work?

Calculate sensible load: Q_s = U×A×ΔT (conduction) plus solar gains and internal loads Then: Calculate latent load: Q_l = 0.68×CFM×Δh (moisture removal) Then: Total load = sensible + latent.

Can you give an example of how to use the H V A C Load Calculator?

Example: Input Office building 5000 m², design ΔT 8°C, occupancy 500 people gives a result of Cooling load ≈ 250-300 kW depending on assumptions (Detailed calculation).

Is the H V A C Load Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the H V A C Load Calculator?

Our H V A C Load Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

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H V A C Load Calculator

HVAC Load Calculator

Room Volume (ft³)

Temperature Difference (°F)

Air Changes per Hour

HVAC load calculation determines heating and cooling requirements. Proper sizing ensures comfort and efficiency without over/under-capacity.

Difficulty:intermediate

References

›H V A C Load — Wikipedia

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H V A C Load Calculator

HVAC Load Calculator

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HVAC Load Calculator