I'm confused, no change there!

https://assets.publishing.service.go...ctsheet_v3.pdf

highlights Boiler Plus 2018 which requires a 92% ErP from April 2018,
though it's not clear what ErP is. I have looked and I have failed to
find out what ErP means and its significance.

The planning portal:

https://www.planningportal.co.uk/inf..._and_heating/2

gives a minimum efficiency of 86% for gas.

And what is most confusing the database of boiler efficiencies doesn't
mention Boiler Plus 2018:
http://www.ncm-pcdb.org.uk/sap/page.jsp?id=4

What are the rules about new boiler installations? Have they really changed?