HeatAC

Heat and Air Conditioning Loads

Ampacity Correction
Temperature Correction
Continuous Load Correction
Conduit Fill Correction
Minimum Number of Circuits
Bus Bar Ampacity
Conductor Resistance
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Fixed Appliance Loads
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Range Loads Note 1
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Heat AC
Standard Residential Service
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The calculation to determine heat and air conditioning load for services is as follows:

Calculate the heat load by adding all heating elements and associated loads together.

Calculate the air conditioning load by adding all air conditioning compressors and associated loads together.

Select the largest load to include in the service calculation.

Find practice problems HERE.

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