The Technician's Guide equips practitioners with the knowledge to properly implement all of the measurement procedures required in the HVAC QI Specification. This Guide & Workbook is intended to ...

When you break something, the reflexive response is to search for a roll of duct tape. Up until recently, that was the best option available. As useful as duct tape may be, it's just not strong or ...

If there ever was a miracle product better than spray-on-hair or the ShamWow, it is duct tape. Over the past 70 years of its existence, this staple product of fix-it-yourselfers has been used by ...

Compare plans tailored to your home & budget. According to the U.S. Department of Energy, a leaky air duct can cost hundreds of dollars in heating and cooling bills. If simple repairs don’t fix the ...