Energy-Efficient Heating and Cooling in Zone 5 and Above

Uncover the essential strategies for optimal energy efficiency in heating and cooling systems, specifically tailored for extreme cold in Climate Zone 5 and above. This course, "Energy-Efficient Heating and Cooling in Zone 5 and Above," addresses the unique challenges of frigid temperatures, offering crucial insights into innovative technologies and best practices.

Led by Dr. John Herod, a seasoned contractor, author, and electrification advocate, this program delves into key aspects of climate-specific HVAC design and implementation. Drawing from extensive practical experience and a deep understanding of building science, Dr. Herod guides you through principles that ensure both comfort and sustainability.

You will learn to:

• **Understand HVAC Fundamentals & Codes**: Grasp basic principles of HVAC, including thermal comfort, heat transfer mechanisms (conduction, convection, radiation), and how they apply in demanding cold climates. Explore relevant ANSI, ASHRAE, and IECC standards, including ASHRAE 62.2 for ventilation, ASHRAE 90.2 for energy-efficient design, and the latest IECC updates on envelope requirements and air leakage.
• **Master HVAC Design Principles**: Learn a structured design process, including user requirements, site conditions, building construction specifics, and optimizing heat and energy recovery ventilation. Analyze the critical role of accurate load calculations (Manual J methodology) and equipment selection (Manual S guidance), understanding how to avoid common pitfalls like oversizing.
• **Explore Cold Climate Heat Pump Technologies**: Gain in-depth knowledge of various heat pump types suitable for cold climates, including air-to-air, air-to-water, and ground-source heat pumps. Delve into innovations like variable-speed compressors, vapor injection, and the balance point concept, which enable efficient operation in low temperatures. This section also touches upon VRF technology and its commercial applications.
• **Evaluate Distribution Systems & Indoor Air Quality**: Compare the pros and cons of forced-air versus hydronic distribution systems, considering efficiency, comfort, and installation. Understand duct design (Manual D overview) and the nuances of various fan motor types. Discover strategies for maintaining superior indoor air quality, including effective filtration, controlled ventilation, and dehumidification.
• **Navigate Grid Interaction & Commissioning**: Explore the impact of HVAC choices on grid stability, including the "duck curve" phenomenon and demand response strategies. Learn the critical steps for proper system startup, commissioning, and essential customer education to maximize efficiency and longevity of energy-efficient systems.

By the end of this course, you will be equipped with the knowledge to design, specify, and implement highly efficient heating and cooling solutions that stand up to the rigors of severe cold, contributing to both occupant comfort and significant energy savings.