In light of continuing airflow problems in duct systems, are HVAC professionals breaking a covenant with their customers? 

The TED50V features Ruskiprene blade and jamb seal material. The TED50VXT is designed to protect against extreme cold temperature conditions by using mechanically-fastened extruded silicone on the blade seals and ribbed-extruded silicone on the jamb seals. 

The AIRFLOW-IQ helps satisfy the requirements for minimum outside air as required by ASHRAE 62.1, 90.1 and 189.1, California Title 24, International Mechanical Code (IMC) and International Energy Conservation Code (IECC).

Greenheck has redesigned its premium model SP bathroom exhaust fans. The fans are available in six sizes, SP-A50 through SP-A190, and have sound ratings as low as 0.3 sones, company officials said.

Continental Fan has released its Eco-Flo energy recovery ventilator. This compact, quiet ventilator helps regulate airflow in single rooms where larger HVAC systems may not reach, officials say.

Integrated Facility Services recently completed its HVAC work for the new $26 million O’Fallon Justice Center in O’Fallon, Missouri.

MarketAir introduces SnowShield, a lightweight, easy-to-install shelter for mini-split condensers available in black, grey or tan.

Greenheck’s Model AER sidewall fan is a direct-drive fan with a cast aluminum propeller. The AER model is available in four sizes: 20, 24, 30 and 36 inches. 

EFlow USA released a constant airflow regulator available in 3 to 10-inch diameters. 

Many people have seen dirt on registers and the ceiling around the register openings. Oftentimes the HVAC system will appear to be clean. So what could be going on?