Carbon Monoxide, Indoor Air Quality, NCI Article Library, Ventilation
Most homes are already leaky and drafty so why would you want to bring in more outside air into the duct system? Because that's the best place to bring it in! Normally the air that comes into buildings, leaks through the walls, windows, doors, electrical outlets,...
Carbon Monoxide, Diagnostic, Indoor Air Quality, NCI Article Library
NCI training seminars show you how to achieve gross margins of up to 80% on testing and system renovation work. This should result in net profits of 20% or better. Some of you make these margins regularly on this type of work, yet many still do not. As we provide...
Measurement, NCI Article Library, Static Pressure Testing, Technician Tips
The Magnehelic® is the go-to test instrument for many NCI-trained technicians for measuring static pressure. This test instrument has been around the HVAC industry for decades and is still the test instrument of choice for many. In this article, we explore the basics...
Diagnostic, Measurement, NCI Article Library, Service Agreements
There's nothing like a quality tool that speaks to the soul...a good ole Magnehelic Gauge. You know, that shiny, fascinating pressure gauge spun from billet aluminum, solidly attached to the precision ground helix that drives the needle upward responding to even the...
Carbon Monoxide, Combustion Safety, Indoor Air Quality, NCI Article Library, NCI Favorite Articles, Safety
The most talked about symptoms of CO poisoning are those that mimic the flu, such as nausea, headache, and dizziness. Fever is another symptom we rarely hear about. These symptoms may be reactions to a short term CO exposure, but what symptoms are common in exposures...