By Pete DeMarco, Executive Vice President of Advocacy and Research, IAPMO Health officials in Hong Kong have determined that plumbing systems in certain high-rise buildings are implicated in recent cases of the COVID-19 coronavirus. Based on the limited information available, it’s clear that transmission paths that would allow for the virus to spread between individual apartment Read more
Industry Blogs
By Pete DeMarco, Executive Vice President of Advocacy and Research, IAPMO
Health officials in Hong Kong have determined that plumbing systems in certain high-rise buildings are implicated in recent cases of the COVID-19 coronavirus. Based on the limited information available, it’s clear that transmission paths that would allow for the virus to spread between individual apartment units in at least one high-rise building have been identified. In order to understand how this has happened, it’s important to have some very basic knowledge of how wastewater systems work in high-rise buildings and to also look back at the SARS outbreak of 2003; the parallels are striking. In fact, the SARS virus is also a strain of coronavirus, so it’s not surprising that COVID-19 has been identified as having the potential to spread through plumbing systems.
High-rise buildings present unique challenges in plumbing design. The following simplified explanation is intended to help illustrate the problem: When toilets in high-rise buildings are flushed, fecal matter and wastewater are discharged into a vertical wastewater pipe, called a “drainage stack.” As the wastewater descends in the stack, it creates pressure changes within the pipe. The wastewater flowing down a stack will push air down ahead of it and drag air behind it, creating both positive and negative pressures within the drainage system. These pressures can affect trap seals by either siphoning the water or pushing the water out of the trap. A second vertical pipe, called a “vent stack,” typically runs parallel to the drainage stack and introduces air into the drainage stack every fifth floor to avert excessive changes that could deplete trap seals and allow contaminated air and aerosols to enter apartments on other floors.
When the SARS outbreak occurred in 2003, problems with dry traps were indicated, allowing contaminated air and wastewater aerosols to enter into apartments on lower floors through floor drains that are required by Chinese and many other Asian national construction codes. A full explanation of how the SARS outbreak occurred and technical solutions providing health and safety associated with proper plumbing practices can be found in The Health Aspects of Plumbing, a publication produced by the World Health Organization and the World Plumbing Council.
Sadly, with the current coronavirus outbreak in Hong Kong, history seems to have repeated itself. According to the Associated Press, a 2016 Hong Kong Housing Department policy change has allowed tenants in certain high-rise apartments to alter the pipe design in their bathrooms without requiring an inspection by a plumbing official, causing the problem that might have helped spread COVID-19. In one of the apartment units, the vent pipe was completely disconnected inside the bathroom, apparently by the occupant, which provided a pathway for contaminated air to enter the apartment, especially when the bathroom ceiling fans were activated. When health officials became aware of this problem, the building was evacuated, hopefully limiting the number of additional illnesses among building residents.
Can the COVID-19 coronavirus be spread in high-rise buildings in the United States in a similar manner? In short, the answer is yes, but unlikely. Due to U.S. plumbing codes, any modification to a building’s water, waste or vent system must be performed by a qualified professional and necessitates an inspection by a code official. In addition, wastewater stacks and vent pipes are typically hidden behind walls in high-rise buildings, reducing the opportunity for residents to easily cut into pipes and create unsafe conditions.
Both the SARS and the current COVID-19 coronavirus outbreaks in Hong Kong illustrate the importance of proper plumbing design and practice in keeping building residents safe from disease and the profound problems that can develop when unqualified individuals decide to work on building water systems. The axiom “the Plumber Protects the Health of the Nation” is more than a slogan. Improper deviations to building plumbing systems can, and indeed often do, result in very significant loss of life and property.
We have made it to the new year, a new decade. And with the turn of every calendar comes the rush of industry trade shows. Next week we will be traveling to Las Vegas for the IBS/KBIS Show or the Builder’s/Kitchen & bath Show. Following that, we will be in Orlando for the AHR Show Read more
We have made it to the new year, a new decade. And with the turn of every calendar comes the rush of industry trade shows. Next week we will be traveling to Las Vegas for the IBS/KBIS Show or the Builder’s/Kitchen & bath Show. Following that, we will be in Orlando for the AHR Show, North America’s largest HVAC show. Oh yeah, let’s not forget about World of Concrete, back in Vegas. The goal is to see, feel and test new products, learn and network with fellow attendees.
The AHR Expo is one of the largest annual North American trade shows.
When attending these trade shows, it is best to have a plan. Having attended dozens of these show in the past, I have come up with some tips and strategies for a better trade show experience.
- Map Out Your Plan — All of these shows have corresponding websites with maps, and a list of exhibitors and events. I can’t stress enough to map out your day so you are the most efficient with your time, energy and steps on the trade show floor. (ahrexpo.com & www.buildersshow.com & www.worldofconcrete.com) Downloading the appropriate trade show apps is a must.
- Wear Comfortable Shoes & Clothing — We all want to look good, and professional, but gone are the days of stuffy apparel. I’d rather feel comfortable and fresh at the end of the day than out of sorts, sweaty and dogs a barking.
- Give Yourself Enough Time — The stress of a trade show can be daunting in and of itself. Take as much time as you need to take a deep breath and move freely on the show floor. It’s always a good idea to come in the day or night before a show to make sure all is in order and registration for the show is set. If you are planning a night out, make sure you make any necessary reservations ahead of time.
- Afterparty Over-Indulging — We all love to go out and enjoy ourselves, especially after a long day at a show. There are numerous manufacturer parties, dinners, soirees, etc. where one can relax and wind down. But staying out all night—and drinking—can be fun, and up to your discretion, but it isn’t advisable, especially if you intend to be at the show the following day. Nobody is impressed with the over-perspired, alcohol lingering on breath, bags under the eyes, headache pounding visit from on overserved attendee. Pro Tip: Keep hydrated and carry a protein bar just in case you get the munchies. The IAQ in these large buildings is usually very poor and the air can get dry.
- Plan Accordingly for Transportation — Most of the time at busy trade shows, transportation can, well, be a bitch, especially after a show. Keep this in mind as long taxi lines will form to and from the shows. Download your favorite rideshare app so you are locked and loaded.
- Travel in Packs — If traveling in groups, try to stay in one place or area. It alleviates costs on transportation and makes meetings much more amenable.
- Be Prepared to Exchange Contact Info — Make sure you have business cards on hand and be prepared to exchange info digitally, so make sure your phone is charged or bring extra chargers! Also, make sure you have proper badges for the show. For example, attendee, exhibitor and press badges all provide different access and different access times. Make sure you understand the limitations of your particular given badge.
- Follow-up with Contacts — Once the show is over, what it your end game? What better way to measure the results of a show personally than to document leads, follow up with new contacts, and were you satisfied with your expectations of information, contacts and overall impressions?
- Cellular/WiFi Service — Most shows do not offer WiFi on the show floor, or if they do, it usually sucks. There are certain spots at different venues you may be able to sneak a signal, maybe. Make sure your service is covered in the areas where you are, or be prepared to go without in the dark recesses of a concrete building.
- If Unable to Attend … — Be sure to follow your favorite social media outlets that are attending (Search Mechanical Hub on Facebook, Twitter & Instagram) and keep up to date on what’s going on from the show floor. First of the year trade show events are when companies have big product announcements, launches and press briefings.
Good luck, and have a great trade show experience!
Blustery days with chilling winds can cause heating problems in many facilities with high volumes of foot traffic. While the main rooms within the building may be warm from the primary heating source, many areas are left out in the cold as drafts bring the temperatures down. Vestibules, lobbies, entrance ways and hallways can all Read more
Blustery days with chilling winds can cause heating problems in many facilities with high volumes of foot traffic. While the main rooms within the building may be warm from the primary heating source, many areas are left out in the cold as drafts bring the temperatures down. Vestibules, lobbies, entrance ways and hallways can all see a steady flow of people moving in and out throughout the day, opening doors and letting in chilly air.
To counteract these cold drafts, facilities should consider fan-forced wall heaters that provide continuous comfort through optimized airflow. Gentle heating sources are often not powerful enough to provide sufficient warmth in drafty areas. Fan-forced wall heaters however, push back on the infiltrating cold air, ensuring occupants feel the warmth as soon as they enter the building and until the moment they leave.
Functionality is Key
Cold air manages to find its way into facilities by any means necessary – whether it’s through vents, cracks, crevices or unsealed windows. Specialized heating units can stop these drafts before they spread throughout a building, bringing down temperatures and reducing overall heating efficiency.
Fan-forced wall heaters with an automatic delay eliminate cold drafts on start-up and discharge residual heat from the heater body during shut down. This helps attack drafts at their source while making the best use of available heat. In addition, consider fan-forced wall heaters that come with an integrated thermostat allowing for easy adjustment of room temperature to maintain a desired comfort level.
Perhaps a lobby is experiencing high foot traffic at the beginning and at the end of the workday, but have less heating requirements in the middle of the day. The adjustable thermostat allows occupants to alter the wall heater’s output based on need, ensuring no heat is wasted and temperatures remain comfortable. QMark and Berko’s commercial fan-forced wall heaters offer contemporary styles to match any room décor while ensuring adjustable warmth throughout the year.
Safety First
As with any heating unit, it is imperative to select high-quality products that offer protection against common safety risks. In terms of general design, fan-forced wall heaters come with a clear, easily accessible power on/off switch for added safety during maintenance, as well as a tamper-proof plug for the thermostat hole.
Also, look for fan-forced units with a manual reset thermal overheat protector that disconnects the power in the event of accidental blockage. This will ensure a quick repair while mitigating risk of injury. Furthermore, units that include permanently lubricated fan motors report increased longevity and lower maintenance needs, while gently distributing warmth throughout a designated area. Make sure the fan is powerful enough to offset drafts while quiet enough to eliminate unnecessary noises that may disrupt daily activities.
Key Takeaways
Every time a door opens during the cooler months, drafts blow in and bring a chilling effect into heated spaces. To neutralize the draft threats, consider installing a fan-forced wall heater to regain warmth and ensure comfortability for all occupants. Commercial fan-forced wall heaters from Berko and QMark provide strong yet safe sources of heat for the draftiest of spaces.
About the author: Andrew Martin is a product manager at Marley Engineered Products®, a leading North American designer and manufacturer of reliable comfort heating and ventilation solutions for residential, commercial and institutional buildings. Recognized by contractors, architects, engineers and HVAC professionals for providing a wide range of high-performance, reliable heating and ventilation solutions, Marley Engineered Products’ brands include QMark®, Berko®, Fahrenheat® and Leading Edge®.
Marley Engineered Products’ manufacturing operations are based in Bennettsville, S.C., with regional sales representatives located throughout the U.S. and an administrative office in Burr Ridge, Ill. For more information, please visit www.marleymep.com.
Connected technology is permeating every aspect of our lives from the homes we live in, to the cars we drive and now, even the cities where we work. As smart cities gain popularity, smart buildings can act as the building blocks of a city’s infrastructure, but facility managers and building owners must get onboard with Read more
Connected technology is permeating every aspect of our lives from the homes we live in, to the cars we drive and now, even the cities where we work. As smart cities gain popularity, smart buildings can act as the building blocks of a city’s infrastructure, but facility managers and building owners must get onboard with – and trained on – smart technology first.
In commercial buildings, one way connected environments can be created is through heating and air conditioning systems that respond to both occupancy and room conditions. This level of automation not only makes it easier for facility managers to operate buildings and keep spaces comfortable, but it also helps save on energy costs and reduces environmental impact, without compromising comfort or safety.
Creating a Customizable, Independently Operated Environment
As many commercial buildings have a multitude of different spaces to tend to, using smart, connected technology to cater to the heating and cooling needs of each space is key to ensuring a simplified building management process as well as occupant comfort.
Variable Refrigerant Flow (VRF) technology paired with smart connectivity controls dynamically offers not only temperature controllability but also cost savings, allowing facilities to manage equipment, lighting, security and electricity remotely from a single interface. With the ability to connect the system to optional door, ceiling, window and carbon dioxide sensors, a building can truly become “smart,” so that the heating and cooling technology automatically adjusts based on in-room conditions.
In a hospitality setting such as a hotel, this can be paramount to securing return visitors. By deploying in-room controls with customizable interfaces within each individual room, the hotel can begin to position itself as at the forefront of a smart hotel experience. With controls capable of custom welcome messages to guests and providing real-time updates on in-room conditions, guests will feel like they’re in a modern, personalized environment.
Similarly, an office environment can benefit from connected HVAC technology. If you’ve ever worked in an office that blasts air conditioning or neglects to use it, you know that temperature can directly impact employee productivity. With connected HVAC technology, workers can feel comfortable, reducing opportunities for distraction and keeping them focused on the task at hand.
Using HVAC Technology to Reduce Environmental Impact
According to the General Services Administration, VRF technology can save users up to 30% on HVAC energy costs, ultimately as a result of their smaller design, which uses less material than older, traditional HVAC equipment. Because these systems also use advanced technology to control temperature, they are more accurate and have a decreased margin of error, extending the lifecycle of the system and reducing the likelihood of maintenance or repair.
With cities consuming nearly 80% of energy production worldwide and an equal share of global greenhouse gas emissions, it is time for change – for the planet and for the bottom line. Smart cities, with tech-savvy smart buildings communicating through the Internet of Things and running on energy efficient technologies, can make a significant impact on global emissions and the lifespan and health of our planet. For business owners, technologies like VRF, among others, can reduce energy waste and in turn, energy costs, while improving tenant productivity and overall indoor comfort.
Propelling the HVAC Industry Forward
The answer is clear: It’s time for building owners, facility maintenance professionals and installation professionals to work together to maximize the value of smart buildings and cutting-edge heating and cooling technologies. As smart technology continues to change the way we live and work, the HVAC industry is in a perfect position to grow, and smart buildings equipped with connected HVAC technology are just another step towards a world full of more productive – and comfortable – cities and citizens.
Malcolm Persaud is the National Sales and Product Manager – Commercial VRF for Panasonic’s Heating and Air Conditioning Group. Malcolm Persaud has a wealth of technical and sales leadership experience through the years with Sanyo and Panasonic. He was instrumental in Sanyo’s VRF successful sales launch and growth in the US market starting in 2005.
Homes are getting smarter as technology evolves, and devices like smart thermostats enable homeowners to create a perfect oasis inside their home while also lowering utility bills. As an HVAC expert, homeowners will look to you for guidance on choosing the right thermostat, so understanding the different variations and features of smart home technology is Read more
Homes are getting smarter as technology evolves, and devices like smart thermostats enable homeowners to create a perfect oasis inside their home while also lowering utility bills. As an HVAC expert, homeowners will look to you for guidance on choosing the right thermostat, so understanding the different variations and features of smart home technology is key.
To determine which thermostat will achieve a homeowner’s own personal degree of perfection, ask your customer these questions:
- How do you want to feel in your home?
A homeowner may not know what device or equipment they want, but they do know how they want to feel in their home. Asking them to describe their ideal environment and how they prefer the air around them to feel will help you get a sense for their individual level of comfort. 
What do you hope to gain from having a smart thermostat?
Is your homeowner looking for an easy way to control the temperature? Do they want to lower their energy bills or even-out the humidity levels in their home? Curate your smart thermostat recommendations around the homeowner’s greatest needs, which oftentimes are not mutually exclusive. Lennox’ iComfort S30 Ultra Smart Thermostat includes Allergen Defender, a feature that monitors and cleans the air in the home, and the ability to control temperature remotely from a smartphone.- What level of control do you want over the temperature and air quality in your home?
Some homeowners want to monitor their home temperature remotely any time of day, while others prefer to set the perfect temperature once and leave it alone. If your homeowner opts for the former, choose a smart thermostat that provides a granular level of control and extensive remote capabilities. For example, the iComfort S30’s Smart Away Mode uses GPS to detect how far away the homeowner is from the house and adjusts the temperature accordingly. On the other hand, Lennox’ iComfort E30 Smart Thermostat’s Perfect Temp feature allows the homeowner to set the desired temperature and the system will automatically adjust heating and cooling to maintain that setting. Identifying the homeowner’s perfect level of comfort is key to suggesting the optimal smart thermostat. - Do you want a thermostat that is compatible with digital assistants?
Some homeowners prefer to control temperature and air quality through a digital assistant. Lennox’ iComfort smart thermostats are compatible with assistants like Google Assistant, Apple HomeKit and Amazon Alexa to create the ultimate comfort experience.
Smart thermostats not only provide a wealth of benefits to homeowners, including decreased energy usage and control over temperature levels, but they can also improve how you work and interact with customers.
- Proactive troubleshooting. Oftentimes, smart thermostats will alert you when there is an issue with your customer’s HVAC systems. This allows you to proactively fix the problem, even before the homeowner is aware there is an issue. Through Lennox’ Dealer Portal, dealers can – when permitted by the homeowner – diagnose problems with the HVAC system and fix them remotely.
- Improved relationships with homeowners. Installation assistance and remote access provided by smart thermostats enable dealers to maintain and nurture relationships with the homeowner. Relationships are no longer one and done – you can be an ongoing resource for a homeowner with the touch of a button.
- Increased ease of installation. Smart thermostats don’t have to be difficult and time-intensive to install. For example, Lennox makes it easy through a four-wire installation with the S30 and E30. With faster and simpler installation, you can shift your focus to forming and nurturing long-lasting relationships with your customer.
Having a variety of options and capabilities allow both dealers and homeowners to find the ideal thermostat to meet their respective needs. Homeowners can surround themselves with perfect air, while dealers can provide higher levels of customer service. To learn more about how to help your homeowner find their perfect level of comfort, visit the Lennox website.
Guest Blogger: Sweta Hari is the Director of Product Management for Controls and Indoor Air Quality at Lennox International. She and her award-winning team are responsible for ideating, developing and commercializing products that improve home efficiency and honor Lennox’ commitment to healthy and comfortable air. With an intense focus on the HVAC dealer and homeowner’s customer experience in mind, Sweta and her team deliver industry-leading products that are recognized for their thoughtful design and overall functionality.