Overall, the results confirmed the findings of the Watcombe study, which had noted clear differences in the experiences of residents before and after the installation of new central heating systems. It detected improvements in self-reported health and also changes in the ways tenants used space in that they utilised much more of their houses after installation. Personal relationships improved, as did motivation to maintain their properties. This was particularly so for people with respiratory illnesses, but improvements in mental health were also noted as levels of stress declined. Tenants’ social relationships developed, both with other family members and with wider networks – for example, respondents felt able to invite people round more often.

While the majority of respondents were happy with the practical information on operating the new system, there was evidence that a significant number of tenants were dissatisfied with the ongoing nature of communications they received from their housing association. This was underpinned by a sense of powerlessness over the timing and implementation of upgrades. There were also negative comments on the quality of work, as well as parts of the property that were not subjected to improvements, such as draughty windows.