Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, for what reason households with (a) fossil fuel central heating and (b) hot water heating from renewable sources must replace both to receive a grant under the Boiler Upgrade Scheme; and whether his Department has made an assessment of the environmental impact of that policy.

The Boiler Upgrade Scheme provides grants to encourage property owners to replace fossil fuel heating with more efficient, low carbon systems. An eligible technology must fully replace any existing fossil fuel system and be capable of meeting the full space heating and hot water requirement for the property. In some circumstances, the scheme allows for parts of the original heating system to be retained including for example, solar thermal collectors.