LUXURY cast-iron cooker maker Aga Rangemaster is experiencing a sales revival after years of difficult trading. The group behind the distinctive Aga ovens said the "tide is turning" as house sales gather pace, boosted by government schemes to increase mortgage availability and the recently launched Help to Buy initiative. Aga Rangemaster said it was on track to post a full-year profit after a sales recovery since April, following a slow start to the year.