Energy Efficiency Upgrade – Basement Overview June 27, 2011 ryw Energy Efficiency, Energy Efficient Products & Technologies, Step By Step Difficulty: 1 of 5 An unsealed basement can be a major contributor to home heat loss. This overview takes a look at a typical basement and targets the main sources of potential heat loss. Materials: Related Posts How to Tune Up a Lawn Mower A well-maintained lawn mower is easier to operate and will last longer. How to Use a Hand Saw A hand saw is one of the most basic tools in carpentry. Here is how to use one properly. How to Install a Hardwood Floor With patience and attention to detail, installing a new wooden floor can be an easy home improvement project.