Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, if he will make an estimate of the number of gas boilers installed each year by (a) local authority and (b) constituency.

The government does not hold this data. DESNZ publishes yearly data on the number of properties connected to the gas network, including by local authority. This data can be accessed using this link: Subnational estimates of properties not connected to the gas network - GOV.UK. The number of gas boilers installed each year, either in new buildings or to replace existing boilers, will typically be higher in local authorities and constituencies with a higher number of gas network connections.