As I've mentioned here before, I live in a 40 year old condo that's a good example of what happens when you build something without understanding the principles of building science. I've previously written about the crawl space problems in…
It seems so simple. There’s outside, and there’s inside. The walls, ceilings, and floors that separate the cold outside from the warm inside should be the only surfaces that rob heat from your home. Interior walls have conditioned space on…
Below is a repost of an article with advice for voters from my friend Chris Kaiser at Mapawatt. Below is a repost of an article with advice for voters from my friend Chris Kaiser at Mapawatt. If you are voting…
Have you heard? Incandescent light bulbs will be phased out, beginning in 2012. This was part of the Energy Independence and Security Act of 2007, signed into law by former President Bush. The ban targets general purpose light bulbs that…
2005 was an important year for me. Not only was I learning how to do Manual J load calculations, crawl space encapsulation, and home performance contracting, but I also drank peak oil kool-aid by the bucketful. I read everything I…
If you're in the market for a new heating & cooling system and you're looking at heat pumps, make sure you understand how they're rated for efficiency - and which rating is more important for you. If you're in the…
This week I read and commented on Avoiding the Global Warming Impact of Insulation by Alex Wilson" target="_blank">Avoiding the Global Warming Impact of Insulation by Alex Wilson over at Green Building Advisor. I'd avoided the article for a while since…
Matt Simmons died this week. It's a huge loss for the peak oil community, as he had great knowledge and understanding of the big picture of global oil production, especially in Saudi Arabia. Matt Simmons died this week. It's a…
I was in a crawl space in Atlanta yesterday putting a new home energy rater through his field test and found that this home has a dehumidifier down below. Not surprisingly, it ran continuously the whole time I was there. …
Today we're running a guest post by Chris Kaiser of Mapawatt.com. I met Chris recently because we're both blogging from the great city of Atlanta, and our blogs complement each other well. Here at Energy Vanguard, we focus mainly on…