Synopsis

Plumbing and heating specialist Richard Trethewey, alongside host Kevin O'Connor, installs a ductless heat pump to provide both heating and cooling for a room. Joining them are Richard, Kevin, landscape contractor Roger Cook, and general contractor Tom Silva, who ponder the question, "What Is It?" Master electrician Scott Caron showcases innovative technologies and their applications in LED lighting. Meanwhile, Roger learns the art of selecting houseplants appropriate for various environments.