Motor voltage controllers can save energy in motors that must operate at constant speed and run continuously even though they may run unloaded or at very low load for long periods of time. However, some manufacturers and vendors market these devices as cure-alls that can save large amounts of energy ...

This first of two reports looking at residential peace-of-mind products examines service contracts or warranty plans covering residential appliances as well as heating and cooling equipment. Our research reveals that utilities and their affiliates continue to launch, grow, and fine-tune residential appliance ...

Toxic mold and bioterrorism scares have recently brought high-profile public attention to indoor air quality (IAQ) concerns. HVAC systems often contribute to the spread of airborne contaminants such as fungus, bacteria, or even viruses present in buildings. Studies have shown that shortwave ultraviolet ...