Course Description

Space heating is not just about comfort - it is the single largest energy end-use in residential and commercial buildings in cold climates. In fact, heating often exceeds 40 percent of total HVAC energy consumption. When we design heating systems correctly, we achieve three critical outcomes: occupant comfort without cold drafts or overheating, building preservation by preventing mold growth and frozen pipes, and reduced carbon emissions. Modern energy codes like ASHRAE 90.1 and the IECC increasingly mandate high-efficiency systems because buildings account for roughly 30 percent of global energy-related emissions. One of the most common mistakes engineers make is oversizing equipment. When you install a boiler or furnace that is too large, it short-cycles - turning on and off frequently - which reduces efficiency, shortens equipment life, and creates uncomfortable temperature swings. Conversely, undersizing leads to inability to maintain setpoint on the coldest days, resulting in constant occupant complaints and the use of dangerous space heaters. The selection of a heating system also affects architectural requirements - you need chase spaces for ducts, flues for combustion appliances, and mechanical room area. With the push toward decarbonization, heating systems are rapidly shifting toward heat pumps and low-carbon fuels. Understanding these fundamentals is essential whether you are designing new buildings or retrofitting existing ones.

What you'll learn in this course?

• Explain the fundamental principles of heat transfer as applied to space heating (conduction, convection, radiation).

• Differentiate between central and decentralized space heating systems.

• Perform basic heat loss calculations using manual J and simplified methods.

• Identify key components of hydronic (hot water) heating systems.

• Select appropriate heat emitters (radiators, fan coils, underfloor heating) for given applications.

• Analyze forced-air heating system components including furnaces, ducts, and dampers.

• Evaluate electric resistance and heat pump heating systems for efficiency and cost.

• Apply energy efficiency metrics (AFUE, HSPF, COP) to compare system performance.

• Interpret relevant codes (ASHRAE 90.1, IECC) and safety standards.

Prerequisites

• Basic HVAC knowledge, heat-transfer fundamentals, building-envelope concepts, and engineering units

• Familiarity with heating equipment and mechanical drawings is helpful