E13 | Mini Split, Butcher Block | Ask This Old House. Season 19 Episode 13 | 23m 42s Video has Closed Captions | CC. Richard Trethewey explains how a ductless heat pump unit, commonly known as a ...

PBS NC helps your community explore new worlds and ideas through programs that educate, ... Richard shows how to maintain a mini split; Mark and Jenn build a garden retaining wall.