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 ...
To quote the wise Yogi Berra, “You’ve got to be very careful if you don’t know where you are going, because you might not get there.” In terms of ... [continue reading]
The International Energy Conservation Codes (IECC 2009 and 2012) require HVAC ducts to be tested to prove a minimum leakage of a rather easily obtained 12 CFM/100 square feet of conditioned floor area. While many states and localities ... [continue reading]
After I described how air can get sucked down the chimney and vent connector and flue, and out the draft diverter of the gas water heater, and into the basement, the mother, who was now ... [continue reading]
As any BPI Building Analyst will tell you, it’s hard to become adept at combustion testing. It takes lots of practice, in real houses, with real mechanical equipment. No amount of classroom training ... [continue reading]
Looking for a draft in a flue by measuring just the pressure in the flue—with reference to the combustion appliance zone, or CAZ—is a bit like discussing the speed of a ... [continue reading]
The green building community is sold on the value of certifications. For the worker, professional credentials demonstrate a degree of knowledge and skill. They help employers screen applicants and help energy efficiency program administrators set ... [continue reading]
The National Renewable Energy Laboratory (NREL) in Golden, Colorado is Transforming Energy†from the way it is generated and used ...
As leaders in the residential energy efficiency industry, the Home Performance Coalition (HPC) responded to the September 2018 request by the ...