Santon Premiere Plus Boiler HELP

[Dpicker1]

Hi we just moved to England and this is the boiler we have in our new apartment. A month has gone by, got our energy bill and it’s £350. Convinced we’ve got this on the wrong setting. Please help us![GALLERY=media, 106376]Image by Dpicker1 posted 11 Apr 2021 at 10:24 PM[/GALLERY]

 

[Dpicker1]

Also I just turned boost on to attempt to get some hot water! Usually it’s on OFF time with no boost on.

 

[polesapart]

https://www.tlc-direct.co.uk/Technical/DataSheets/Horstmann/EL7_U.PDF

You want to be heating your water during the cheaper off-peak (usually night-time) tariff, not daytime boost. The timer enables this. You'll need to check your tariff details for cheaper times.

The missing front flap on the timer doesn't matter but the Santon Premier Plus is an unvented cylinder and not a boiler!