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3 Ways to Measure Airflow for Rooftops and Other HVAC Equipment

One of the most common reasons for rooftop service calls is incorrect airflow.  Low airflow will often lead to frozen evaporator coils, low pressure trips, sweating ductwork and low...... Read More

How to Pipe a Single Circuit A/C with a Dual Circuit Evaporator Coil

If you’re installing a split commercial DX system, how do you know what kind of circuiting you need? And how do you install the piping and refrigerant specialties if...... Read More

How do you fix a humidity problem?

Humidity, the 8th wonder of the world, is a tough nut to crack. Unlike sensible heat transfer, it’s very difficult to measure its movement into buildings through cracks, doorways, and other openings.But,...... Read More

How many tons of air conditioning is this DX or Chilled Water coil?

If you are measuring a Direct Expansion (DX) or Chilled Water coil in the field, or just quoting a replacement coil, you can quickly estimate its nominal tonnage based...... Read More

EER, IEER, SEER, IPLV, HSPF… What do all of these efficiency terms REALLY mean

EER, IEER, SEER, IPLV, HSPF… You have probably seen all of these terms before and never even thought of what the heck they stand for, or why you would...... Read More

Guardian – A Great Addition to Your Offering

Today’s residential HVAC replacement system buyers come in all flavors, but what we find is that most of them are looking first and foremost for a contractor that they...... Read More

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