ANSI/ASHRAE 193-2010 (R2024): HVAC Equipment Airtightness
An airtight building envelope and HVAC ducts result in a more precise ventilation system that can provide the correct amount of fresh air. When there…
ANSI/ASHRAE 55-2023: Thermal Environmental Conditions for Human Occupancy
An American National Standard, ANSI/ASHRAE 55-2023: Thermal Environmental Conditions For Human Occupancy, specifies indoor thermal environmental factors and personal factors that will produce thermal environmental…
IEC 60335-2-104 Ed. 2.0 en:2021— Recycling Refrigerants
When refrigerants are mishandled, they can cause environmental contamination and disease. Regulations and standards govern technician training, where and how refrigerants are sold, equipment, and…
2024 International Mechanical Code (ICC IMC-2024)
The International Mechanical Code (IMC) is in use or adopted in 46 US states, the District of Columbia, New York City, Guam, Puerto Rico, and…
ANSI/ASHRAE 62.2-2022: Ventilation in Residential Buildings
Regardless of the building, assuring an acceptable indoor air quality (IAQ) is a shared interest. In the home, ventilation and air quality contain unique considerations,…
ANSI/ASHRAE 62.1-2025: Ventilation for Indoor Air Quality
On average, we breathe air in and out 12 times a minute. Our bodies inhale the gaseous matter to send oxygen though the alveolar walls…
ANSI/ASHRAE 72-2022: Testing Refrigerators And Freezers
Can you imagine a world without refrigerators? It seems unlikely, as 99.8% of American homes own at least one refrigerator. ANSI/ASHRAE 72-2022: Method Of Testing…
ANSI/ASHRAE 120-2022: Flow Resistance of HVAC Ducts and Fittings
Pressure is key for HVAC system operations, and the many factors that can adjust the airflow, thus influencing alterations in pressure, should be measured and…
ANSI/ASHRAE 103-2022: AFUE Testing of Residential Furnaces & Boilers
Most homes in the United States are heated with either furnaces, systems that heat air and distribute it throughout the house, or boilers, appliances with…