Hero
David Richardson/NCI
Interior Hvac Diagram
David Richardson/NCI
If you know what to look for, a visual inspection provides clues to unsafe operation. It's never good for one package unit to exhaust into the economizer of an adjacent unit.
National Comfort Institute
Before you jump on the heat pump bashing bandwagon, look at your duct installation practices first.

The Best of Rob 'Doc' Falke

Aug. 4, 2010
Sometimes the best way to learn something is to dive in and get your hands dirty. Rob 'Doc' Falke has been sharing his industry knowledge and expertise through his technical articles in the Hotmail newsletter for several years

Sometimes the best way to learn something is to dive in and get your hands dirty. Rob ‘Doc’ Falke has been sharing his industry knowledge and expertise through his technical articles in the Hotmail newsletter for several years. His articles give contractors a ‘hands on’ approach to solving issues like balancing a zoned system to exhaust fan pressure measurement. Click below to get access to some of the best of Rob’s past articles.

Heat Pump Mysteries

How to Catch Fall IAQ Opportunities

Exhaust Fan Pressure Measurement

How to Check Duct System Size

Measuring Fresh Air With a Thermometer

Is Green Closing In On You?

Balancing a Zoned System

How To Measure Residential Hydronic Heating System Btu

Build Safety Clauses into Your Proposals

Oversized and Underperforming Equipment