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Aug 06, 2026
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HVAC 203 - Heat Loss and Gain Calculation
PREREQUISITES: HVAC 101 - Heating Fundamentals , and HVAC 103 - Refrigeration I
PROGRAM: Heating, Ventilation and Air Conditioning
CREDIT HOURS MIN: 3
LECTURE HOURS MIN: 3
DATE OF LAST REVISION: Spring, 2019
Introduces the student to calculating structural and other heat losses for winter heating, and structural and other heat gains for summer air conditioning using an industry standard method of heat loss and heat gain calculation. Discusses building construction techniques, energy consumption reduction methods and equipment selection.
MAJOR COURSE LEARNING OBJECTIVES: Upon successful completion of this course the student will be expected to:
- Determine both indoor and outdoor design temperatures as well as design temperature difference.
- Correctly look up the “Heat Transfer Multipliers” for each structural component.
- Determine structural dimensions from a blueprint or drawing.
- Calculate perimeter, surface area and volume.
- Estimate the CFM of infiltration on a building, the heat loss/gain on a structure due to infiltration, the heat loss/gain from the duct system, the structural heat losses/gains and the total heat loss/gain for a building [sensible plus latent].
- Determine equipment requirements based on a heat loss/gain calculation.
- Estimate the CFM of air required for each room of the structure based on the summer heat gain estimate for the room.
- Perform a heat loss and gain calculation using an industry standard method such as Manual J and/or a computerized heat loss and gain calculation package.
- List the factors that affect the rate at which a building will lose or gain heat.
- Describe several methods of reducing energy consumption of the structure.
COURSE CONTENT: Topical areas of study include -
- Indoor design conditions
- Outdoor design conditions
- Design temperature difference
- Heat transfer and insulation R-value
- How building orientation, roof overhang and other external shading affects heat loss and gain of a structure
- Sources of building infiltration and method for estimating
- Duct heat loss/gain and method for estimating
- Interpreting blueprints
- Methods of calculating perimeter, area and volume of various building geometric shapes
- Finding heat transfer multipliers
- Sensible vs. latent load
- Using Manual J and/or and equivalent computerized or manual heat loss/gain program to estimate building heat loss and gain
- Heating and air conditioning equipment selection
- Methods of energy conservation
- How to estimate CFM of airflow by room
GRADING POLICY
| A |
90-100 |
| B |
80-89 |
| C |
70-79 |
| D |
60-69 |
| F |
0-59 |
Course Addendum - Syllabus (Click to expand)
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