Heat Loss & Heat Gain
Understanding the basics of heat transfer (heat loss and heat gain) is
essential in the comprehension of thermal characteristics and residential energy usage. We will cover the basics and give participants a strong foundation of
knowledge on which to build. This is intended for those new to the energy field or for those wishing to review the
fundamentals.
By attending this session, participants
will
1. Learn about the two major forms of heat transfer, transmission, and air
leakage
2. Understand terms such as British thermal unit (Btu), temperature difference, conduction, convection, radiation, infiltration,
exfiltration, R-value, U-factor, heating degree days, cooling degree days, and internal gain
3. Explore the dynamics of heat
loss and gain by discussing the driving forces behind transmission and air-leakage heat transfer, and understand how they affect heating and cooling
bills
Keywords: air sealing, building envelope, fundamentals,
heat transfer, heat loss, heat gain, R-values, U-factors