Following are four examples — a kosher wine shipping center, a chiller plant in a marine research lab, a community pool, and a 10th-floor medical office retrofit — that illustrate just how creative high-efficiency products can be when it comes to unique solutions for everyday issues.
Legionnaires' disease is a severe form of lung infection caused by exposure to bacteria known as Legionella. Found naturally in freshwater environments like lakes and streams, Legionella becomes a health hazard when it grows unabated in water that is not properly treated. While this can include shower heads, hot tubs, and hot water heaters, cooling towers are often found to be the source of outbreaks.
Several months ago, I wrote a Duct Dynasty article titled “Four Steps to Optimize a Duct System.” Since then, I’ve received numerous requests to expand on the simple calculations I mentioned that can help you estimate room airflow with a customer’s input.
The air duct calculator, or “ductulator,” is a commonly used tool for designing and installing duct systems. Unfortunately, many designers and technicians receive limited instructions on its correct use.
The GPS-iClean's ease of installation as well as its nearly nonexistent maintenance requirements have earned it gold in the Indoor Air Quality category.
Ultraviolet (UV) light has been growing as part of the HVAC landscape for years, specifically within the IAQ arena. ASHRAE's validation is certainly a huge step forward for UV, but many manufacturers believe this technology has already proven its value, as its growth and expansion began years ago.
The REME Halo™ whole-home air purifier from RGF® Environmental Group Inc. has earned a reputation among contractors not only for its ability to improve IAQ, but also for its ease of installation and stellar customer support.
Although UV-C is simple, many contractors are mystified about how UV-C works and how to apply it cost-effectively. These aspects and other misunderstood issues are addressed here .
Designed for use in both residential and commercial HVAC systems, The Phenomenal Aire Cold Plasma Generator (CPG) is an air-purification technology that produces an electric field filled with highly charged ions.
Could the shift to better filters mean that they could cause problems with inadequate airflow or greater fan energy use? Are all high-MERV filters equal, or do some have less pressure drop than others? How much better are 2- and 4-inch-thick pleated filters than 1-inch filters? Some tests were run to answer these questions.