Indoor Heating – An Ancient Roman Innovation?
Numerous innovations can be attributed to the Ancient Romans. Aqueducts, concrete, newspapers, even elevators—these are just a few of the technologies that have seeped into…
ANSI Z21.10/CSA 4 (Water Heaters)
Standards within the ANSI Z21.10 (or the CSA 4) series specify guidelines for newly produced gas water heaters. These water heaters provide heating to a…
ASHRAE Standards
The American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) is an international organization representing over 50,000 members. As a standards-developing organization, ASHRAE is…
AMCA 501-17 – Louver Application Manual and Design Guide
Air Movement and Control Association (AMCA) International, an ANSI-accredited standards-developing organization, has released AMCA 501-17 – Louver Application Manual and Design Guide, a publication that…
AMCA Louver Standards
A louver is defined as “a device comprising a blade or blades that permit the flow of air but inhibit the passage of water or…
Performance Test Codes (PTCs) by ASME
Performance test codes, otherwise known as PTCs, are standard documents, written and published by the American Society of Mechanical Engineers (ASME), that provide uniform rules…
ASME PTC 4.3-2017 – Air Heaters
Defects in air heaters can be troublesome for their performance, sparking a multitude of longstanding additional problems. For example, excessive air leakage can be responsible…
AMCA 202-17 – Troubleshooting Problems During Fan Installations
The realization of how easily things can go awry is astonishing. Call it the repercussions of Murphy’s Law or another natural inclination towards chaos, but…
Changes to ASHRAE 52.2-2017
ASHRAE 52.2-2017 – Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size has been released, revising and superseding the 2012 version…