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Someone testing annual fuel utilization efficiency (AFUE) of a residential boiler by following ANSI/ASHRAE 103-2022.
ANSI | HVAC and Indoor Environment

ANSI/ASHRAE 103-2022: AFUE Testing of Residential Furnaces & Boilers

ByBrad Kelechava March 4, 2022June 4, 2025

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…

Chef setting an oven that follows NFPA 86-2019
ANSI | Fire Safety

NFPA 86-2019: Standard for Ovens and Furnaces

ByMatthew Fowler October 23, 2018May 30, 2025

NFPA 86-2019: Standard for Ovens and Furnaces has been released. It revises the 2015 edition of the same standard. Whether we are always cognizant of…

Hypocaust Ancient Roman Heating
ANSI | HVAC and Indoor Environment

Indoor Heating – An Ancient Roman Innovation?

ByBrad Kelechava January 24, 2018May 29, 2025

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…

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