78.6% of households who received a home energy efficiency improvement package were owner-occupied, with 21.4% of households being privately rented.
Roedd 78.6% o'r cartrefi a gafodd becyn gwella effeithlonrwydd ynni cartref yn eiddo i berchen-feddianwyr, gyda 21.4% o gartrefi yn cael eu rhentu'n breifat.