Plot: After months of renovation, the Roloffs are remodel-weary - especially now that it's winter. But when Matt decides to "go green" and install a gigantic geothermal heat pump system, the whole family chips in to warm up their house again
Cast
Amy RoloffSelfAmy Roloff was 46 in Little People, Big World - Season 4 - The Heat Is On (Episode 2).
Birthday: Mon, Sep 17 1962
Matt RoloffSelfMatt Roloff was 47 in Little People, Big World - Season 4 - The Heat Is On (Episode 2).
Birthday: Sat, Oct 07 1961
Zach RoloffSelfZach Roloff was 18 in Little People, Big World - Season 4 - The Heat Is On (Episode 2).
Birthday: Thu, May 10 1990
Jeremy RoloffSelfJeremy Roloff was 18 in Little People, Big World - Season 4 - The Heat Is On (Episode 2).
Birthday: Thu, May 10 1990
Molly RoloffSelfMolly Roloff was 15 in Little People, Big World - Season 4 - The Heat Is On (Episode 2).
Birthday: Fri, Sep 17 1993
Jacob RoloffSelfJacob Roloff was 11 in Little People, Big World - Season 4 - The Heat Is On (Episode 2).
Birthday: Fri, Jan 17 1997