The Search for Thermal Comfort
In the beginning there was woman and man, naked; I assume. The body’s core temperature is stable at about 98 °F. In an outdoor environment with a temperature between 65 to 102 °F, a ...
On an ongoing basis, California’s investor-owned utilities (IOUs), in collaboration with the California Public Utilities Commission (CPUC) and the California Energy Commission (CEC), develop programs designed to promote residential energy efficiency. In 2010, recognizing ... [continue reading]
According to DOE’s Building America program data, typical residential ductwork efficiency is about 67%. That means that if you install a 90% efficient furnace, your system efficiency would be just over 60%. Another way to look ... [continue reading]
Energy auditors use a simple, well-known approach called a utility bill disaggregation to analyze a home's overall energy use. Here's a quick summary of that technique as detailed in Krigger and Dorsey's Residential Energy: [continue reading]
Long ago, when I started in this business, I wished for a pair of glasses that I could put on to see how the air was moving. (Now I wear glasses all the time just ... [continue reading]
As the house gets tighter, the effectiveness of the ventilation system becomes increasingly critical. [continue reading]
Today, the Home Performance Coalition (HPC) calls on policymakers, industry leaders, energy program managers and contractors to redefine home energy ...
Zero-energy (ZE) homes—efficient homes that produce or procure as much renewable energy as they consume over the course ...