This special episode is all about making a home more energy-efficient.

This special episode is all about making a home more energy-efficient. Plumbing and heating expert Richard Trethewey heads to Atlanta, where he helps a homeowner install an instantaneous water heater to save on rising fuel costs. Meanwhile, in the loft, landscape contractor Roger Cook shows how planting deciduous and evergreen trees properly can help reduce the costs of heating and cooling a house. General contractor Tom Silva helps a pair of homeowners insulate the walls of their antique Victorian using blown-in cellulose insulation. Back in the loft, Tom demonstrates how to add more fiberglass insulation to an attic.