Ventilation in the 2019 California Energy Code

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Ventilation in the 2019 California Energy Code

It is not unusual for California to be first and unique. Just one year after the 1973 oil embargo exposed this country’s reliance on foreign oil, California was the first state to implement a ...

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Blower Door Cruise Control

Author: Bruce Torrey
archive CONTENT
March 01, 1994

The use of pressure differential diagnostics to measure and interpret air leakage is changing the way blower-door users approach buildings. [continue reading]

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Infiltration: Just ACH50 Divided by 20?

Author: Alan Meier
archive CONTENT
January 01, 1994

Many researchers have sought to develop a correlation between a one-time pressurization test and an annual infiltration rate. [continue reading]

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Leak Detectors: Experts Explain the Techniques

Author: Various Authors
archive CONTENT
September 01, 1993

This article is an effort to bring together the ideas of several innovators who have invented methods of diagnosing duct leakage. [continue reading]

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Two Favorite Test Methods, By the Book

archive CONTENT
September 01, 1993

The American Society for Testing and Materials (ASTM) has decided to improve protocols for two popular test methods for testing duct leakage in residences--the "blower door subtraction" technique and the "flow hood" technique. [continue reading]

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In Search of the Missing Leak

archive CONTENT
November 01, 1992

With the use of blower doors, weatherization programs have improved cost-effectiveness by prioritizing air sealing work, developing effective inspection procedures for determining if work was done properly, and assessing the impact of air sealing on indoor air quality and moisture problems. [continue reading]

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Introduction to Blower Doors

Author: David Keefe
archive CONTENT
November 30, 1999

Air flow through a building can have a powerful impact on comfort, expense, and air quality. Blower doors provide a way to quantify air flow and the resulting heat loss, along with a way to pinpoint specific leaks. [continue reading]

HVAC Industry Trends: 7 Things Every Contractor Should Know

Kristina Frunze

HVAC Industry Trends: 7 Things Every Contractor Should Know

The past year has seen many developments in HVAC technology and the industry as a whole. For contractors, understanding these ...

Equity and Climate: A Solution for Home Rentals

Laurie Stone

Equity and Climate: A Solution for Home Rentals

Lack of affordable housing and energy burdens plague many people and communities. Cities throughout the United States are looking for ...

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