Rules of thumb, friend, or foe?
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Find out why HVAC technicians’ rules of thumb must be based on math, not something made up or convenient, from ACCA HVAC expert Ed Janowiak.
Manager of HVAC Design Education at ACCA
Ed Janowiak is ACCA's Manager of HVAC Design Education and can be reached at ed.janowiak@acca.org or 703-824-8878.
Latest posts by Ed Janowiak (see all)
- Hey Ed, what is managing expectations? - May 7, 2025
- Hey Ed, what’s with the gray refrigerant tanks? Did the refrigerant manufacturers run out of colors? - April 30, 2025
- Hey Ed, are digital gauges better than analog gauges? - April 23, 2025
Posted In: Aside, Technical Tips, Technology
