Ask This Old House

E13 | Rot Repair, Heat Pumps | Ask This Old House

Season 20 Episode 13 | 23m 42s  | Video has closed captioning.

Mark McCullough shares the story of how he became a mason and what he loves best about his trade; Tom Silva explains why wood rots on houses, how to prevent it, how to repair it if it occurs, and when to replace it; in Future House, Ross Trethewey explains the four main types of heat pump technology, how they work, and which houses are the best fit for them.