Richard Trethewey shows us a gas company truck that runs on natural gas, then takes us inside to see progress on radiant floor heating. Chris Hagger accepts delivery of concrete for a new porch slab from a truck that mixes up small amounts on-site. T... (more)he crew lays out the slab over the radiant tubing. The guys work with old planes to see how moldings were made long ago, while Tom Silva runs new molding for the eaves with a knife he custom made. Finally, we visit a lighting showroom to see some of the kitchen lighting the homeowners have chosen.