National Comfort Institute, Inc. is the leader in HVAC diagnostics for both air flow and combustion related topics. We provide training, equipment and consultation to HVAC contractors around the world so they can
provide more comfortable and energy efficient homes and offices.

See how NBI certified contractors can help
improve comfort and increase energy efficiency
in your home or small office.

Learn more about Carbon Monoxide risks and
steps you can take to reduce your exposure to
CO and improve the energy
efficiency.

                                            Professional
                                            training,
                                            equipment and
support for HVAC contractors performing air
diagnostics, balancing, combustion
analysis and CO detection.

Training and
certification for
commercial air and
hydronic test & balancing
professionals.