Overview: Richard visits a homeowner and installs an air eliminator valve on her hydronic heating system, reducing the need for annual maintenance. At the Ask This Old House barn loft, Tom shows how to remove nails without damaging the trim on a door frame. Steve and Roger perform annual maintenance on a snow blower. Steve consults with Jim on ways to clean and maintain old paintbrushes. Tom makes a House Call to a young couple and shows them how to use sisal and jute rope to fill the gaps in their 160-year-old pine floor. More Info & Resources