The Government's Warm Up New Zealand insulation programme ran for nine years in three phases (the current insulation and heating programme is Warmer Kiwi Homes - see separate entry). WUNZ: Heat Smart (WUNZ: HS) ran from 2009-2013 and was open to all households. The second phase, WUNZ: Healthy Homes (WUNZ: HH), ran for three years, was completed at the end of June 2016 and was targeted to low income households. The third phase, WUNZ: Healthy Homes Rentals (WUNZ: HHR) ran from 1 July 2016 to 30 June 2018. WUNZ: HHR was open to owners of rental properties, occupied by low income tenants. Under the WUNZ programmes the Government invested $465 million ($347 million under Heat Smart, $100 million under Healthy Homes, and $18 million under WUNZ: HHR) to part-fund insulation retrofits to New Zealand households. Under these programmes, over 300,000 houses have been insulated, with 155,000 of those being low income households.