HPAC Engineering stands as a vital resource for engineering professionals in the buildings sector, offering insights into the latest advancements and best practices in heating, ventilation, air conditioning, and refrigeration. With its magazine and podcast, “HPAC On The Air”, HPAC provides a platform for peer-to-peer communication among engineering professionals in the buildings industry.

Introduction to HPAC Engineering

Overview of HPAC Engineering

HPAC Engineering, often abbreviated as HPAC, is a cornerstone publication for engineering professionals focused on the mechanical systems within industrial and institutional building environments. Since 1929, HPAC Engineering Magazine has delivered comprehensive coverage of HVAC, boiler, air conditioning, ventilation, and refrigeration technologies. It serves as a vital resource for those involved in the design, installation, operation, and maintenance of these systems. HPAC also provides news and resources through its podcast, “HPAC On The Air”.

Reflecting on a Century of Industry Evolution

Over the past hundred years, the construction and engineering landscape has undergone profound transformations—many that would have astonished early practitioners. In the 1920s, building systems were often basic affairs, relying on natural ventilation, coal-fired boilers, and manual controls. Sheet metal and brick were the order of the day, with slide rules and hand-drawn blueprints guiding the work.

Fast forward to today, and the shift is nothing short of monumental:

Technological Advancements: The rise of automation, digital modeling tools like BIM (Building Information Modeling), and the integration of smart sensors have made precision—and efficiency—hallmarks of the industry. Gone are the days when troubleshooting required equal parts guesswork and elbow grease; now, a tablet can diagnose a complex HVAC issue in moments.
Materials and Sustainability: New materials such as cross-laminated timber, advanced composites, and high-efficiency insulation have reimagined the way we design and retrofit buildings. Sustainability isn’t just a buzzword—it’s a driving force. Standards like LEED (Leadership in Energy and Environmental Design) and WELL guide decision-making from blueprint to occupancy.
Globalization and Collaboration: Where projects once relied purely on local know-how, today’s engineers and builders draw from a global knowledge base. International codes, shared digital platforms, and multidisciplinary teams mean that solutions born in Tokyo can inform builds in Toronto or São Paulo.
Changing Expectations: Occupant comfort, indoor air quality, and energy efficiency have shifted from “nice-to-haves” to non-negotiables. As a result, professionals are expected to balance technical mastery with environmental stewardship and user health at every project phase.

This ongoing evolution continues to push the boundaries of what’s possible—reminding us that the built environment is as dynamic and innovative as those who shape it.

Importance in Modern Systems

In modern systems, HPAC engineering plays a crucial role in ensuring efficiency, sustainability, and occupant comfort. With increasing concerns about greenhouse gas emissions and indoor air quality, the expertise provided by HPAC engineering is more important than ever. Understanding and implementing best practices in HPAC is essential for optimizing building performance and reducing environmental impact.

Key Contributors and Thought Leaders

HPAC Engineering frequently features insights from key contributors and thought leaders in the field. Many individuals and organizations have shared their expertise with the magazine, including:

Rob McManamy
Representatives from organizations such as ASHRAE, NFPA’s Jim Pauley, the American Council of Engineering Companies, the American Boiler Manufacturers Association, Danfoss, and Palladio Compressors.

Through articles and “HPAC On The Air” interviews, these experts share their knowledge and perspectives on the challenges and opportunities facing engineering professionals in the buildings today. You can learn more about HPAC Engineering by visiting their website.

Canadian Excellence in Engineering and HVAC

Canadian professionals have long been recognized for their outstanding contributions to leading engineering and HVAC organizations, playing an instrumental role in shaping industry standards and driving technological innovation. At major conferences and gatherings—like the annual ASHRAE Winter Conference—Canadian engineers are frequently honored for their leadership, research, and dedication to advancing efficient, sustainable building solutions worldwide.

Some notable highlights of Canadian involvement include:

Developing innovative approaches to energy-efficient HVAC system design.
Leading research initiatives on sustainable building practices and reducing greenhouse gas emissions.
Contributing to best-practice standards for indoor air quality and occupant comfort.
Serving in key positions within prominent organizations, such as ASHRAE, and influencing policy at an international level.

These achievements not only reflect the strength and expertise of Canada’s engineering community but also help raise the bar for professionals everywhere, inspiring continued growth and collaboration throughout the industry.

Upcoming and Recent Events in Engineering and HVAC

Conference Highlights and Event Agendas

Staying current in the HVAC and engineering fields means keeping an eye on upcoming conferences, webinars, and industry gatherings that shape best practices across the profession. Here are some of the recent and upcoming events that are drawing attention from leaders and practitioners alike:

ASHRAE Conferences: Whether it’s the much-anticipated annual meeting in Tampa or previous gatherings in cities like Toronto, these conferences offer sessions covering everything from sustainable system design to the latest regulatory updates. Attendees can expect workshops on energy efficiency, panel discussions on emerging technologies, and networking opportunities with fellow engineers and industry experts.
Hydrogen Blending and Low-Temperature Recirculation Seminars: Virtual conferences have recently spotlighted topics such as hydrogen blending in HVAC systems and low-temperature recirculation, providing deep dives into strategies for improving system efficiency and lowering carbon footprints.
Green Technology and Hydronics Forums: These sessions delve into the integration of green technology within building systems, focusing on everything from modern plumbing solutions to advanced hydronic heating methods.
Webinars on Virtual Collaboration and System Design: With the engineering field embracing more remote work and digital tools, webinars have tackled best practices for virtual system design and collaborative workflows, helping teams adapt to new challenges in project delivery.
Campaigns to Elevate the Role of Engineers: Recent initiatives have emerged aimed at promoting awareness of the pivotal role engineers play in sustainable construction and operations, featuring keynote speakers from prominent professional organizations.

No matter your area of specialization—HVAC systems, plumbing, management, or green technologies—these events are designed to keep you informed, inspired, and connected to the pulse of the industry.

New Initiatives Elevating the Engineering Profession

Campaigns and Programs Shining a Spotlight on Engineers

The importance of engineering in shaping our built environment continues to gain recognition, thanks to several notable initiatives designed to highlight and celebrate the profession. Organizations such as Engineers Without Borders, the National Society of Professional Engineers (NSPE), and DiscoverE have launched targeted campaigns to raise public awareness about the value engineers bring to society.

Among these, Engineers Week—coordinated annually by DiscoverE—encourages students, educators, and industry professionals to engage in outreach activities, school programs, and public events. This week-long celebration showcases the creativity and impact of engineers, inspiring the next generation and reminding stakeholders of the profession’s critical contributions.

Additionally, ambassadors from leading industry associations frequently collaborate on public service announcements and media outreach efforts designed to demystify engineering roles. These campaigns often share personal stories from engineers, highlight projects that improve communities, and advocate for diversity in STEM fields.

Collectively, these initiatives underscore the expanding role of engineers in solving today’s most pressing challenges, from sustainable infrastructure to addressing global climate concerns.

HPAC On The Air: A Deep Dive

Format and Structure of the Show

HPAC Engineering’s podcast, “HPAC On The Air,” offers a dynamic and engaging format to keep engineering professionals in the buildings abreast of the latest industry trends. The show typically features interviews with experts, panel discussions, and news updates related to HVAC, boiler, air conditioning, ventilation, and refrigeration. “HPAC On The Air” aims to foster peer-to-peer communication among engineering professionals.

Featured Guests: Rob McManamy and Jim Pauley

Rob McManamy and Jim Pauley from NFPA are among the notable guests who have shared their insights on “HPAC On The Air.” Other frequent contributors include:

Danfoss
Palladio Compressors

These experts bring a wealth of knowledge and experience to the table, offering valuable perspectives on various challenges and opportunities within the industrial and institutional building sector.”

Topics Covered in Recent Episodes

Recent episodes of “HPAC On The Air” have covered a diverse range of topics relevant to engineering professionals in the buildings. Specifically, some of the recent discussions have focused on:

ASHRAE’s new strategy
Advancements in boiler technology
Innovations in air conditioning and ventilation systems
Strategies for improving energy efficiency

The podcast also addresses critical issues such as greenhouse gas emissions reduction.

In addition to these broad industry topics, the show has taken a closer look at specific technological developments. For example, recent conversations have explored the latest in hydronic systems and the evolving role of heat exchangers in heating and cooling applications. Notably, there was an in-depth discussion around enhancements to gasketed plate and frame heat exchangers—a topic of particular interest for those looking to improve system efficiency and reliability in both new and retrofit projects.

By blending high-level trends with focused explorations of new equipment and system designs, “HPAC On The Air” ensures listeners stay informed about both the big picture and the technical details shaping the industry today.

Major Industry Expansion: New Compressor Facility in Mexico

Among recent developments in the global HVAC and refrigeration sector, leading manufacturer Danfoss has announced the construction of a new compressor factory in Mexico. This strategic investment is designed to boost production capacity and streamline supply chains for customers across North America. The new facility signifies not only Danfoss’s ongoing commitment to technological innovation and sustainability but also highlights the industry’s response to increasing demand for efficient and environmentally responsible solutions.

By expanding their manufacturing footprint, major players like Danfoss are better positioned to support the evolving needs of the buildings industry, ensuring that cutting-edge compressor technology remains accessible amid shifting market dynamics.

Recent Industry Moves: Acquisitions and Partnerships

The HVAC and controls sector continues to see activity from major players aiming to strengthen their footholds and expand expertise. For instance, Lennox has recently announced the acquisition of an HVAC division from NSI Industries, a move expected to enhance Lennox’s product offerings and reach. Meanwhile, Danfoss has established a new partnership with Laurentide Controls, focusing on serving the Eastern Canada market.

These developments reflect the industry-wide trend toward strategic collaborations and consolidations, keeping pace with technological advancements and shifting market demands. As more organizations align their strengths, professionals in the buildings industry can anticipate greater access to integrated solutions and broader support networks.

Canadian Investment in Emerging Energy and Hydronic Technologies

Across Canada, companies are ramping up efforts to invest in new energy and hydronic technologies to meet evolving sustainability goals. A number of engineering firms and building operators are actively implementing innovative solutions such as:

Hydron Energy Systems: Businesses are turning to advanced hydron-based technologies to enhance heating efficiency and reduce reliance on traditional fossil fuels. This includes investing in high-efficiency boilers, heat recovery systems, and low-temperature hydronic heating for improved operational performance.
Solar Air Heating: Canada continues to make significant strides in solar air heating adoption for commercial and institutional properties. By integrating solar panels with building ventilation systems, organizations are able to pre-heat incoming air, resulting in both cost savings and reduced greenhouse gas emissions.
Geothermal and Heat Pump Solutions: Organizations across the country are deploying geothermal systems and next-generation heat pumps to realize long-term energy savings. These technologies harness the earth’s natural heat or leverage ambient air, further contributing to a lower carbon footprint.
Industry Recognition and Collaboration: National honors programs and awards are increasingly spotlighting projects that demonstrate leadership in energy management and green technology implementation. This peer recognition encourages wider adoption of best practices throughout the sector.

Collectively, these investments are not only improving energy efficiency and indoor environmental quality, but also supporting Canada’s position as a leader in the development and deployment of sustainable building technologies.

Canada’s Leadership in Solar Air Heating Technology

Canada has steadily established itself at the forefront of solar air heating advancements—a position strengthened by the country’s commitment to sustainability and innovation in the buildings sector. Canadian engineers and organizations have pioneered high-performance solar air heating systems that capture solar energy to preheat ventilation air, dramatically improving energy efficiency in commercial, industrial, and institutional applications.

Some of the notable breakthroughs coming out of Canada include:

Development of SolarWall® Technology: Canadian companies were instrumental in inventing perforated wall systems that use the sun’s energy to heat incoming air, drastically reducing the need for conventional heating.
Adoption Across Sectors: From manufacturing facilities in Ontario to municipal buildings in Alberta, solar air heating systems are now a common solution in Canada’s pursuit of net-zero energy buildings.
International Influence: Canadian innovations in solar air heating have caught the attention of engineers globally. The systems developed here are now installed in more than 40 countries, with organizations like ASHRAE recognizing their efficacy.
Rigorous Research and Testing: Canadian research institutions continue to test, refine, and optimize solar air heating designs for northern climates, often partnering with international standards bodies.

With a focus on reducing greenhouse gas emissions and lowering operational costs, Canada’s leadership in this field has made solar air heating a staple for projects aiming for LEED® certification and other green building standards. These advancements underscore the essential role Canadian expertise plays in the global conversation around sustainable building technologies.

Embracing Virtual System Design and Collaboration

Virtual system design and digital collaboration tools are rapidly transforming the way construction and engineering projects are planned and executed. Industry-leading firms are increasingly relying on advanced software like Autodesk Revit, Trimble Connect, and Navisworks to streamline project coordination among architects, engineers, and contractors. By leveraging these platforms, project teams can create detailed 3D models, detect clashes before construction begins, and share real-time updates across geographically dispersed teams.

This shift has several distinct advantages:

Improved Efficiency: Digital modeling minimizes errors and rework by catching potential conflicts early in the design phase.
Enhanced Communication: Cloud-based workflows ensure that all stakeholders have access to the latest project information, minimizing miscommunication.
Greater Flexibility: Virtual collaboration enables remote participation, which is especially valuable for multi-site projects and in response to the growing demand for flexible work arrangements.
Faster Decision-Making: Instant feedback through shared models and collaborative comment features accelerates approvals and keeps projects on schedule.

From complex hospital builds to energy-efficient commercial spaces, virtual system design is helping teams achieve greater accuracy while saving time and resources. This technology has become a staple of modern project management for construction and engineering professionals, ensuring everyone remains connected, informed, and able to respond quickly as project needs evolve.

Latest Trends and Challenges in Hydronic Heating Systems

Hydronic heating systems continue to evolve with several transformative trends shaping the industry today. One major development is the growing emphasis on energy-efficient technologies, such as low-temperature recirculation systems. These approaches help building owners reduce energy consumption while maintaining consistent comfort, which is ever more critical in the face of stricter energy codes and net-zero building targets.

Another notable trend is the integration of renewable energy sources. Geothermal and air-source heat pumps are increasingly being paired with hydronic systems, allowing facilities to leverage greener energy while optimizing performance. Advances in smart controls now provide engineers and facility managers with improved system diagnostics, offering real-time optimization and easier troubleshooting of complex installations.

Despite these advancements, professionals still face several challenges:

System Complexity: As hydronic systems become more advanced, their installation and maintenance require specialized expertise—an ongoing challenge with the current skilled labor shortage.
Regulatory Shifts: Regular updates to codes, such as those associated with low-lead requirements and efficiency standards, demand continuous education and adaptation by industry stakeholders.
Aging Infrastructure: Many existing buildings feature outdated hydronic components. Upgrading equipment and addressing compatibility issues with newer technologies can be a persistent hurdle.

By staying informed about these trends and confronting their respective challenges, engineering professionals are better equipped to design and manage hydronic heating systems that align with both modern sustainability goals and occupant comfort.

Noteworthy Industry News and Developments

Keeping up with industry news is essential for professionals involved in building mechanical systems. Recent headlines have highlighted several notable developments and business updates in the HVAC and construction sectors:

Major manufacturers have announced operational changes, including plant closures and regional rebranding efforts, prompting shifts in market dynamics.
Prestigious industry expos continue to recognize innovation, with upcoming events announcing award winners for groundbreaking advancements in HVAC technologies.
Equipment safety and performance remain in focus as certain units are recalled or upgraded due to operational quirks, such as unexpected movement during use.
Companies are expanding their presence in key regions—recently, leaders in HVAC distribution have relocated headquarters to strategic locations, helping to strengthen service and support throughout North America.

These stories illustrate ongoing transformation across the industry, and highlight the importance of staying informed about business realignments, product improvements, and the individuals and organizations leading the charge toward innovation.

Recent Innovations in Heating, Cooling, and Indoor Air Quality

Staying current with advancements in heating, cooling, and indoor air quality technology is vital for any building professional. Over the past year, the industry has seen the debut of several noteworthy systems designed to enhance both comfort and efficiency:

Advanced Electric Trench Heaters: New compact electric trench heating systems have made it easier to integrate efficient, discreet heating solutions into modern architectural spaces. These low-profile systems are particularly useful in areas with large expanses of glass or limited wall space.
Next-Generation Thermal Imaging Tools: For building maintenance and diagnostics, the latest handheld thermal imaging devices are now more versatile and user-friendly. Wireless, smartphone-compatible models offer facility teams more flexibility for pinpointing energy loss, detecting insulation gaps, and monitoring system performance.
Smart Controls and Modular Solutions: Many manufacturers have introduced intelligent controls that allow for real-time monitoring of indoor climate and system performance. Modular HVAC components are also gaining popularity, making it easier to scale, update, or maintain equipment over time.

These innovations exemplify how the industry continues to respond to evolving demands for higher efficiency, smarter diagnostics, and enhanced occupant comfort.

Latest Developments in Construction and Engineering

Key Industry Updates

Besides the big-picture trends, professionals are keeping a close eye on:

Enhancements to Performance Standards: New and updated performance standards for existing buildings and HVAC-related systems were released or strengthened in the past year, reflecting growing regulatory and market demands.
Investment in Infrastructure: From district energy studies to investments in hydrogen blending and virtual system design, the sector is exploring new approaches to heating, cooling, and energy distribution.
Focus on Health and Safety: The ongoing development of IAQ (Indoor Air Quality) pathogen mitigation guidelines highlights the sector’s dedication to occupant well-being and operational resilience.
Women and Diversity in the Field: Recognition of diverse contributions and expansion of professional development programs underscore the industry’s focus on inclusion and skill growth.

These developments reinforce the importance of staying up-to-date with the latest standards and technological advancements as we collectively move toward smarter, greener, and more resilient built environments.

Indoor Air Quality and Its Importance

Understanding Indoor Air Quality

Indoor air quality (IAQ) refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants. Proper HVAC systems are crucial for maintaining acceptable IAQ levels. Since 1929, HPAC Engineering Magazine has been covering these topics.

Impact on Health and Comfort

Poor indoor air quality can have significant impacts on the health and comfort of building occupants. By implementing effective ventilation and filtration strategies in HVAC systems, engineers can improve indoor air quality and create healthier, more comfortable environments for occupants.

Best Practices for Maintaining Quality

Maintaining good indoor air quality requires a multi-faceted approach, including proper design and maintenance of HVAC systems, regular air filter replacements, and adequate ventilation. Engineering professionals in the buildings, especially those following HPAC engineering guidelines, are instrumental in implementing these best practices.

Fire Protection in HPAC Engineering

Role of Fire Protection in Building Safety

Fire protection is an indispensable aspect of building safety, working in concert with HVAC systems to ensure the well-being of occupants. Understanding the role of fire protection in conjunction with HPAC engineering is essential for creating safe and resilient buildings.

Current Standards and Regulations

Numerous standards and regulations govern fire protection, including those established by the NFPA. Engineering professionals must stay abreast of these standards to design and maintain effective fire protection systems. These regulations are continually evolving to address emerging safety concerns and new technologies, making it essential for engineers to stay informed and compliant.

Technological Advances in Fire Protection

Technological advancements are continually improving the effectiveness of fire protection systems. From intelligent smoke detection and real-time alarm monitoring to integrated building management systems, the industry is seeing significant innovations. HPAC Engineering Magazine often covers these advances, highlighting their impact on building safety and mechanical system design. Additionally, the integration of forced air systems and advanced air monitoring technologies has enhanced both fire protection and overall indoor air quality in modern buildings.

Troubleshooting Tips for Hydronic and Plumbing Systems

Addressing common hydronic and plumbing issues requires a combination of systematic analysis and proven best practices. Whether it’s a commercial boiler loop or a building-wide piping network, being proactive in finding and fixing problems can minimize downtime and keep critical systems running smoothly.

Common Troubleshooting Steps

Check for Air in the System: Air trapped in hydronic systems often leads to noisy pipes, uneven heating, or reduced efficiency. Regularly bleeding radiators or using automatic air vents can help maintain optimal flow and performance.
Inspect for Leaks: Even minor leaks in pipes, valves, or fittings can lead to larger issues. Look for signs of water around connection points, discoloration, or drops in system pressure. Addressing leaks early prevents water damage and mold growth.
Monitor Water Pressure: Hydronic systems typically require a specific pressure range. Use pressure gauges to ensure proper levels, topping up if needed, or investigating if pressure drops suddenly, which could signal a leak or failing pressure-reducing valve.
Test Temperature Controls: Incorrect thermostat settings, faulty sensors, or malfunctioning control valves can cause uneven heating and occupant discomfort. Periodically verify that controls respond as expected and replace defective components promptly.
Check for Blockages: Sediment or mineral buildup can obstruct flow in both hydronic and plumbing lines. Regular flushing and installing appropriate filtration devices help maintain clean system water and prevent blockages.
Review Pump Operation: Circulator pumps are at the heart of many hydronic systems. Listen for unusual noises, check for vibration, and ensure that pumps are sized appropriately for system requirements.

When to Call in the Professionals

While many troubleshooting steps can be performed by facility staff or building engineers, some situations—such as persistent leaks, system-wide pressure drops, or unexplained temperature fluctuations—may require consultation with a licensed plumber or mechanical contractor. Routine preventive maintenance and professional inspections can go a long way to extend the life of your hydronic and plumbing equipment.

ASHRAE’s Influence on HPAC Engineering

Mission and Goals of ASHRAE

ASHRAE plays a pivotal role in shaping HPAC engineering practices, aiming to advance heating, ventilation, air conditioning, and refrigeration systems. Since 1929, ASHRAE has provided standards, guidelines, and research that influence the design, operation, and maintenance of ../../what-is-central-ac/HVAC systems. Their work also extends to developing standards for indoor air quality (IAQ), pathogen mitigation, and health and safety, reflecting the growing importance of healthy indoor environments in the built environment.

Collaboration with HPAC Engineering

ASHRAE’s collaboration with HPAC Engineering fosters the exchange of knowledge and best practices within the industry. HPAC Engineering Magazine frequently features articles and insights from ASHRAE experts, while “HPAC On The Air” often hosts discussions on ASHRAE’s standards and initiatives. This collaboration benefits engineering professionals by keeping them informed of the latest research, regulatory updates, and practical applications that can be implemented in real-world projects.

Education and Resources Provided by ASHRAE

ASHRAE provides extensive educational resources and professional development opportunities for engineering professionals. These include courses, certifications, and publications that cover various aspects of HPAC engineering. ASHRAE’s resources help professionals stay current with the latest advancements and best practices in the field, whether it’s understanding the latest IAQ pathogen mitigation standards or implementing energy-efficient HVAC solutions. You can learn more about ASHRAE on their website.

Government-Funded Studies in District Energy Systems

Government agencies continue to play a vital role in advancing district energy systems through targeted funding and research initiatives. For example, in New Glasgow, Nova Scotia, federal funding has been allocated toward an in-depth feasibility study of district energy systems. This project, supported by Natural Resources Canada, aims to evaluate sustainable heating and cooling solutions that can serve multiple buildings efficiently while reducing greenhouse gas emissions.

Such studies are critical for informing future infrastructure investments, identifying potential energy savings, and developing strategies for integrating renewable energy sources into community heating networks. As interest in decarbonizing building portfolios grows, these government-backed projects help pave the way for widespread adoption of innovative district energy technologies across North America and beyond.

HPAC Engineering: HPAC On The Air and More