Watch Ask This Old House Season 8 Episode 7 Online

It begins with general contractor Tom Silva helping a homeowner seal out drafts by installing weather-stripping on her front door. Then, up in the loft, host Kevin O'Connor is joined by residential energy expert Paul Scheckel to discuss several ways to monitor and save electricity. Next, plumbing and heating expert Richard Trethewey helps a homeowner determine the proper size for a new heating system by performing a comprehensive heat-loss analysis.