Occupancy Heat Gain Calculator

Calculate sensible and latent heat gain from occupants based on activity level and space type.

Design occupancy count.
people
Sensible heat: Seated=245, Light work=250, Moderate=315, Heavy=580 BTU/hr per person.
BTU/hr
Latent heat: Seated=205, Light=200, Moderate=235, Heavy=870 BTU/hr per person.
BTU/hr
Percentage of design occupancy present (0.6-1.0).

Results

Sensible Heat Gain-BTU/hr
Latent Heat Gain-BTU/hr
Total Heat Gain-BTU/hr
Sensible Load-tons
References: ASHRAE Fundamentals Chapter 18: Nonresidential Cooling and Heating Load Calculations; ASHRAE Standard 62.1 Table 6-1