When it comes to understanding friction rate in residential ductwork design, Allison Bailes III, Ph.D., of Energy Vanguard, recently explained on the HVAC School podcast that friction rate may be a little of a misnomer. Here’s what he says.

A Duct Air Leakage Tester (DALT) for commercial duct systems, Kanomax’s DALT 6900 series gives step-by-step test configuration and automated leakage testing based on SMACNA’s HVAC Air Duct Leakage Test Manual.

Few HVAC manufacturers can say they’ve been in business for more than 100 years. This year, Nortek Global HVAC (formerly Nordyne) entered that distinction as it celebrated another year in the heating and cooling industry.

The new FLIR EM54 takes accurate air velocity, temperature, and relative humidity measurements.

Bacharach now has a cost savings calculator for commercial refrigerant leaks.

The RSES has released a new chapter of its service application manual titled “The Basics of Pre-Season AC Maintenance.”

Spectroline’s Cool Seal A/C Leak Sealer seals refrigerant leaks in compressors, condensers, evaporators, O-rings and hoses, and it’s now available in three different delivery methods.

Spectroline’s BigEZ leak-detection kit was designed to help HVAC market contractors locate leaks in medium- to large-sized air-conditioning and refrigeration systems.

Spectroline has released its BigEZ leak-detection kit was designed to help HVAC contractors locate leaks in medium- to large-sized air-conditioning and refrigeration systems.