Last night I was at the Energy Avenger...er, the Energy Logic hospitality suite at the end of a great first day of the RESNET conference. I got a chance to talk with many of the wonderful people in the HERS…
I get asked variations of this question often enough that it's worth addressing here. If you're doing a blower door test, how big a house can you test with one fan? Or, put another way, how many blower doors do…
One thing that invariably surprises people when I walk them through a house during their first blower door test is how much air leaks in through the electrical switches and receptacles. On Friday, we went out to do the last…
I've written a couple of articles recently about the complexities of mechanical ventilation and the battles going on regarding when to install it, how much to ventilate, and whether ASHRAE 62.2 is worth all the resources we're throwing at it.…
With the help of people who know a lot more than I do, I'm slowly getting this stuff figured out. I wrote about my problems with using ACHnat a while back, and when I posted that article at Green Building…
Guest post from Nate Adams, founder of Energy Smart Insulation in Mantua, Ohio. Guest post from Nate Adams, founder of Energy Smart Insulation in Mantua, Ohio. It's that time of year again: Two nice sized snowstorms have hit here in…
Does your heating system have a humidifier attached to it? If so, it's most likely there to treat a symptom while leaving the underlying cause of that symptom alone. The symptom is dry air in winter. Unless you're in an…
You know how sometimes people ask, "Where were the adults?" In the field of building science, I've got a new question: Where were the control freaks? It's not nearly as well known as it should be, but buildings need to…
A home with an attached garage is usually a home in which people breathe more carbon monoxide (CO). Of course, having an open carport or detached garage is better for air quality (and a feature that usually gets points for…
It's not that hard really, at least in principle. You want to reduce the air leakage in your home so you keep the conditioned air inside and the cold air outside this winter. What's the advice of all those stories…